JP4164873B2 - Retaining wall block and its construction method - Google Patents

Description

The present invention relates to a retaining wall block having a vertical wall extending in a direction perpendicular to the surface of the foundation, and a bottom plate extending in a horizontal direction in contact with the surface of the foundation from the lower end portion of the back surface of the vertical wall. It relates to the construction method.

Conventionally, as a retaining wall block having a vertical wall extending in a direction perpendicular to the surface of the foundation and a bottom plate extending in a horizontal direction in contact with the surface of the foundation from the lower end of the back surface of the vertical wall, A retaining wall block having a vertical wall, the bottom plate, and a vertical rib extending in the vertical direction to the bottom plate on the back of the vertical wall is known (for example, see Patent Document 1). The retaining wall block is excavated so that the installation location is horizontal, and a foundation made of foundation material and foundation concrete on which chestnuts or crushed stones are laid is created. It is fixed by embankment. Therefore, according to the retaining wall block, since it has the vertical ribs extending to the bottom plate in the vertical direction on the back surface of the vertical wall, when earth pressure due to embankment is applied to the vertical wall, The strength of the vertical wall against the distributed load of earth pressure acting in the vertical direction on the back of the vertical wall that causes bending is compared with the case where there is no vertical rib extending to the bottom plate in the vertical direction on the back of the vertical wall. And can be high.

Next, using a retaining wall block having a vertical wall extending in a direction perpendicular to the surface of the foundation, and a bottom plate extending in a horizontal direction in contact with the surface of the foundation from the lower end of the back surface of the vertical wall As a method of constructing the retaining wall block to construct the retaining wall, install the retaining wall block side by side so that the sides of the retaining wall block face each other, and place a connecting member on the back between the retaining wall blocks to bolt A method for constructing a retaining wall block is known in which the retaining wall is constructed by connecting the retaining wall blocks by fixing the connecting member to the retaining wall block (see, for example, Patent Document 2).
JP 2001-336163 A JP 2002-256578 A

However, in the above-described prior art, the former is constructed by placing the retaining wall blocks side by side on the foundation so that the side surfaces of the retaining wall blocks face each other, constructing the retaining wall, and embedding it on the back of the retaining wall, thereby retaining earth pressure. When added to the vertical wall of the wall block, the vertical wall has vertical ribs that extend to the bottom plate in the vertical direction, so that the vertical wall can be bent in the front direction. The strength of the vertical wall against the distributed load of earth pressure acting in the vertical direction can be increased compared to the case where there is no vertical rib extending to the bottom plate in the vertical direction on the back of the vertical wall. For the earth load distributed load acting on the back of the vertical wall that causes horizontal torsion in the horizontal direction, the method of embedding on the back of the retaining wall or the height of the retaining wall etc. When the earth pressure applied to the retaining wall increases, There is a problem that it becomes impossible to secure a sufficient degree. In addition, there is a problem that distortion occurs in the left-right direction during manufacturing.

In the latter case, the retaining wall blocks are arranged side by side on the foundation so that the side surfaces of the retaining wall blocks face each other, and a connecting member is arranged on the back surface between the retaining wall blocks, and the connecting member is fixed to the retaining wall block with bolts. By connecting the retaining wall blocks, the retaining walls are constructed. However, the retaining wall blocks are connected to the extent that the retaining wall blocks for positioning the retaining walls are positioned, and the retaining wall blocks are firmly coupled. Instead, when the earth pressure due to embankment on the back of the retaining wall is applied to the retaining wall, each retaining wall block receives earth pressure due to the embankment, so the construction method or embedding of the embankment on the back of the retaining wall becomes higher, etc. The strength of the retaining wall against the distributed load of earth pressure acting in the vertical direction on the back surface of the retaining wall that causes deflection in the front direction of the retaining wall, such as when the earth pressure applied to the retaining wall increases by Cause horizontal twist in the retaining wall There is a problem that it becomes impossible to sufficiently secure the strength of the retaining wall for distributed load of earth pressure acting across the left-right direction on the rear surface of the retaining wall, such as. Moreover, since the connection between the retaining wall blocks is not strong when a part of the foundation sinks, there is a problem that the retaining wall blocks sink similarly.

The present invention has been made in view of such a situation, and the horizontal direction on the back surface of the vertical wall of the retaining wall block in the earth pressure applied to the retaining wall by embedding on the back surface of the retaining wall constructed from the retaining wall block Retaining wall block that can increase the strength of the vertical wall with respect to distributed load acting over the surface, and can reduce lateral distortion during manufacturing, and a retaining wall constructed from the retaining wall block The embankment on the back of the wall increases the strength of the retaining wall against the distributed load acting in the vertical and lateral directions on the back of the retaining wall in the earth pressure applied to the retaining wall, and part of the foundation sank It is an object of the present invention to provide a retaining wall block construction method capable of constructing a retaining wall in which the retaining wall block does not sink.

In order to solve the above-described problems, the retaining wall block and the construction method thereof according to the present invention employ the following means.

That is, the retaining wall block according to the first aspect of the present invention includes a vertical wall extending in a direction perpendicular to the surface of the foundation and a horizontal direction in contact with the surface of the foundation from the lower end of the back surface of the vertical wall. in retaining wall block having a bottom plate extending in the back and the upper surface of the bottom plate of the vertical wall, a horizontal rib extending in the lateral direction is formed, inside the vicinity of the transverse ribs on the rear of the vertical wall, An insertion hole through which a connecting member for connecting the retaining wall blocks can be inserted is formed in the upper surface of the bottom plate in the vicinity of the inside of the horizontal rib and in the corner portion where the vertical wall and the bottom plate are joined. It is characterized by being characterized.

According to a second aspect of the present invention, there is provided the retaining wall block according to the first aspect, wherein the horizontal rib on the back surface of the vertical wall is formed at a predetermined distance from the upper end of the vertical wall. Features.

According to a third aspect of the present invention, there is provided a method for constructing a retaining wall block comprising: a vertical wall extending in a direction perpendicular to the surface of the foundation; In the construction method of the retaining wall block which builds a retaining wall using the retaining wall block which has a bottom slab extended in the horizontal direction, the retaining wall block of Claim 1 is made so that side surfaces may oppose on the said foundation. It is arranged side by side, and the retaining member is constructed by inserting and coupling the coupling member into the insertion hole.

According to a fourth aspect of the present invention, there is provided the retaining wall block construction method according to the third aspect of the invention, wherein the connecting member is a PC steel material, and a tensile force is introduced into the PC steel material for connection. .

According to a fifth aspect of the present invention, there is provided a method for constructing a retaining wall block comprising: a vertical wall extending in a direction perpendicular to the surface of the foundation; in construction methods of retaining wall blocks to build a retaining wall with a retaining wall block having a bottom plate extending in the horizontal direction, claim rebar in the deck slabs are embedded in the longitudinal direction to protrude from the rear end face 1 The retaining wall blocks described above are arranged side by side so as to face each other on the foundation, and a retaining wall is constructed by arranging reinforcing bars behind the bottom end face of the bottom plate and placing concrete. To do.

According to a sixth aspect of the present invention, there is provided a method for constructing a retaining wall block comprising: a vertical wall extending in a direction perpendicular to the surface of the foundation; In a retaining wall block construction method for constructing a retaining wall block using a retaining wall block having a horizontally extending bottom plate, a vertical rib extending downward from an upper end portion is formed on the rear surface of the vertical wall. In the vicinity of the upper surface of the vertical rib, a hole capable of fixing a support fence post is drilled, or the horizontal rib on the back of the vertical wall is formed at the upper end of the vertical wall, The retaining wall block according to claim 1 , wherein holes are provided on the upper surface of the horizontal rib on the back surface of the vertical wall so that the guard fence can be fixed. The guard fence post is inserted into the hole and fixed in place. Characterized in that it build.

According to the retaining wall block of the first aspect of the invention, since the lateral rib extending in the left-right direction is formed on the back surface of the vertical wall, the retaining wall block is embanked on the back surface of the retaining wall constructed from the retaining wall block. As a result, it is possible to increase the strength against the distributed load acting on the back of the vertical wall of the retaining wall block in the earth pressure applied to the retaining wall, and to reduce the distortion in the lateral direction during manufacturing. be able to.

According to the retaining wall block of the second aspect of the present invention, since the lateral rib on the back surface of the longitudinal wall is formed at a predetermined distance from the upper end of the longitudinal wall, the retaining wall constructed from the retaining wall block. The vertical wall can be cut in the left-right direction at a predetermined distance from the upper end of the vertical wall according to the height and inclination of the vertical wall.

Further, according to the retaining wall blocks of the invention described in claim 1, the inner at the corners inside the vicinity of the transverse ribs in the back of the vertical wall, and internal and near the vertical wall and the bottom plate of the transverse ribs on the upper surface of the bottom plate to the junction Since the insertion hole through which the connecting member that connects the retaining wall blocks can be inserted is formed, the retaining wall blocks of the retaining wall constructed from the retaining wall blocks can be firmly connected by the connecting member. Can do.

Moreover, according to the construction method of the retaining wall block of the invention described in claim 3 , the retaining wall block described in claim 3 is installed side by side so that the side surfaces face each other on the foundation, and the connecting member is made into the insertion hole. In order to construct a retaining wall by inserting and connecting, the retaining wall block of the retaining wall constructed from the retaining wall block is firmly connected by a connecting member, and earth pressure applied to the retaining wall by embedding on the back of the retaining wall And the impact from the front of the retaining wall can be received by the entire retaining wall, and it is retained against the distributed load of earth pressure acting on the back surface of the retaining wall in the vertical and lateral directions and the impact from the front of the retaining wall. The strength of the wall can be increased, and when a part of the foundation sinks, the retaining wall block of the sinked part can be supported by other retaining wall blocks that are connected. Sinking can be prevented. In addition, the retaining wall block at the corner of the retaining wall receives earth pressure applied to the retaining wall from two directions by embankment on the back of the retaining wall, so a larger load is applied compared to the retaining wall block of other parts. However, since the retaining wall block at the corner of the retaining wall is firmly connected to the retaining wall block of the other part by the connecting member, the soil added to the retaining wall by embedding on the back of the retaining wall The corner retaining wall block in the retaining wall against the distributed load of earth pressure that can receive pressure on the entire retaining wall and acts on the back surface of the corner retaining wall block in the vertical and lateral directions The strength of can be increased.

Further, according to the retaining wall block construction method of the invention of claim 4 , the connecting member is a PC steel material, and a prestress is applied between the retaining wall blocks to be connected in order to introduce and connect the tension force to the PC steel material. It is possible to connect the retaining wall blocks more firmly.

Further, according to the construction method of retaining wall blocks of the invention of claim 5, wherein the retaining wall block of claim 1 wherein the the bottom plate is embedded in the front-rear direction so as reinforcing bars protrude from the rear end face, basal In order to construct the retaining wall by arranging the reinforcing bars from the rear end face of the bottom plate and placing concrete behind it, and constructing the retaining wall, the front and back direction of the bottom plate at the construction site of the retaining wall Thus, when the earth pressure due to the embankment on the back surface of the retaining wall is applied to the retaining wall, it is possible to improve the proof strength of the retaining wall against which the retaining wall falls.

According to the method for constructing the retaining wall block according to the sixth aspect of the present invention, a vertical rib extending downward from the upper end portion is formed on the back surface of the vertical wall. A hole in which the pillar of the fence can be fixed is drilled, or the lateral rib on the back of the vertical wall is formed at the upper end of the vertical wall, and the upper surface of the lateral rib on the rear of the vertical wall is the retaining wall block of claim 1, wherein the hole struts can be fixed is bored, installed side surfaces on the foundation by arranging to face, inserted and fixed to the posts of safety barrier in the hole When building a retaining wall with a retaining wall block and constructing a protective fence to construct a retaining wall, it is cheaper and easier than installing a protective fence by fixing the supporting fence column to another member. A protective fence can be provided and near the upper surface of the vertical rib formed on the retaining wall block or The fences since then inserted into a hole that is bored on the upper surface of the rib to secure the safety barrier can be firmly fixed.

Hereinafter, embodiments of a retaining wall block and a construction method thereof according to the present invention will be described with reference to the drawings. Drawing 1 is a figure explaining a 1st embodiment of a retaining wall block concerning the present invention, and its construction method.

Fig.1 (a) is a figure which shows the retaining wall block 10a of this embodiment. The retaining wall block 10a has a vertical wall 11a extending in a direction perpendicular to the surface of the foundation, and a bottom plate 12a extending in the horizontal direction in contact with the surface of the foundation from the lower end of the back surface of the vertical wall 11a. is doing. The foundation is formed, for example, by laying a crushed stone or crushed stone on the ground and placing concrete on the ground to make the surface flat. On the back surface of the vertical wall 11a, a horizontal rib 13a extending in the left-right direction with a predetermined distance W from the upper end of the vertical wall 11a is formed. Further, on the back surface of the vertical wall 11a, there is formed a vertical rib extending in the vertical direction from the horizontal rib 13a to the upper surface of the bottom plate 12a and further extending to the rear end of the bottom plate 12a. The vertical rib is a first vertical rib 14a formed at the center of the vertical wall 11a, and a second vertical rib formed at the right end of the vertical wall 11a with the right end face and the end face of the vertical wall 11a aligned. The rib 15a is composed of a third vertical rib 16a formed at the left end portion of the vertical wall 11a so that the left end surface and the end surface of the vertical wall 11a coincide with each other. The vertical ribs 14a, 15a, and 16a are formed so that the thickness in the front-rear direction increases toward the bottom while extending in the vertical direction from the horizontal rib 13a of the vertical wall 11a to the upper surface of the bottom plate 12a. The corner where the vertical wall 11a and the bottom plate 12a are joined has a front side formed at a right angle and a back side formed in an R shape. A plurality of grooves 18a extending in the left-right direction are formed on the R-shaped surface of the corner where the vertical wall 11a and the bottom plate 12a are joined. Further, a lateral rib 19a extending in the left-right direction is formed on the upper surface of the bottom plate 12a.

FIG.1 (b) is a figure which shows the retaining wall block 10b of this embodiment. The retaining wall block 10b has a vertical wall 11b extending in a direction perpendicular to the surface of the foundation, and a bottom slab 12b extending in a horizontal direction in contact with the surface of the foundation from the lower end of the back surface of the vertical wall 11b. is doing. On the back surface of the vertical wall 11b, a horizontal rib 13b extending in the left-right direction with a predetermined distance W from the upper end of the vertical wall 11b is formed. Further, on the back surface of the vertical wall 11b, there is formed a vertical rib extending in the vertical direction from the horizontal rib 13b to the upper surface of the bottom plate 12b and further extending to the rear end of the bottom plate 12b. The vertical rib is composed of a first vertical rib 14b formed on the right side of the vertical wall 11b and a second vertical rib 15b formed on the left side of the vertical wall 11b. The vertical ribs 14b and 15b are formed so that the thickness in the front-rear direction increases toward the lower side while extending in the vertical direction from the horizontal rib 13b of the vertical wall 11b to the upper surface of the bottom plate 12b. The corner where the vertical wall 11b and the bottom slab 12b are joined has a front side formed at a right angle and a back side formed in an R shape. A plurality of grooves 18b extending in the left-right direction are engraved on the R-shaped surface of the corner where the vertical wall 11b and the bottom plate 12b are joined. Further, a lateral rib 19b extending in the left-right direction is formed on the upper surface of the bottom plate 12b.

FIG.1 (c) is a figure which shows the retaining wall block 10c of this embodiment. The retaining wall block 10c has a vertical wall 11c extending in a direction perpendicular to the surface of the foundation, and a bottom slab 12c extending in a horizontal direction in contact with the surface of the foundation from the lower end of the back surface of the vertical wall 11c. is doing. On the back surface of the vertical wall 11c, a horizontal rib 13c extending in the left-right direction is formed at a predetermined distance W from the upper end of the vertical wall 11c. Further, on the back surface of the vertical wall 11c, there is formed a vertical rib 14c extending in the vertical direction from the horizontal rib 13c to the upper surface of the bottom plate 12c and further extending to the rear end of the bottom plate 12c. The vertical rib 14c is formed at the center of the vertical wall 11c. The vertical rib 14c is formed so that the thickness in the front-rear direction increases toward the lower side while extending in the vertical direction from the horizontal rib 13c of the vertical wall 11c to the upper surface of the bottom plate 12c. The corner where the vertical wall 11c and the bottom plate 12c are joined has a front side formed at a right angle and a back side formed in an R shape. A plurality of grooves 18c extending in the left-right direction are formed on the surface formed in the R shape at the corner where the vertical wall 11c and the bottom plate 12c are joined. Further, a lateral rib 19c extending in the left-right direction is formed on the upper surface of the bottom plate 12c.

FIG.1 (d) is a figure which shows the retaining wall block 10d of this embodiment. The retaining wall block 10d has a vertical wall 11d extending in a direction perpendicular to the surface of the foundation, and a bottom plate 12d extending in a horizontal direction in contact with the surface of the foundation from the lower end of the vertical wall 11d. Yes. The vertical wall 11d is formed so that the thickness in the front-rear direction increases toward the bottom. On the back surface of the vertical wall 11d, there is formed a horizontal rib 13d extending in the left-right direction at a predetermined distance W from the upper end of the vertical wall 11d. The corner where the vertical wall 11d and the bottom slab 12d are joined has a front side formed at a right angle and a back side formed in an R shape. A plurality of grooves 18d extending in the left-right direction are formed on the surface formed in the R shape at the corner where the vertical wall 11d and the bottom plate 12d are joined. A lateral rib 19d extending in the left-right direction is formed on the upper surface of the bottom plate 12d.

As described above, according to the retaining wall blocks 10a, 10b, 10c, and 10d of the present embodiment, the lateral ribs 13a, 13b, 13c, and 13d extending in the left-right direction are provided on the back surfaces of the vertical walls 11a, 11b, 11c, and 11d. Since it is formed, the vertical wall 11a of the retaining wall blocks 10a, 10b, 10c, 10d in the earth pressure applied to the retaining wall by embankment on the back of the retaining wall constructed from the retaining wall blocks 10a, 10b, 10c, 10d , 11b, 11c, 11d, the strength can be increased against the distributed load acting in the left-right direction. Further, lateral ribs 13a, 13b, 13c, 13d and lateral ribs 19a, 19b, 19c extending in the left-right direction are formed on the rear surfaces of the vertical walls 11a, 11b, 11c, 11d and the upper surfaces of the bottom plates 12a, 12b, 12c, 12d. , 19d is formed, it is possible to reduce the distortion in the left-right direction when the retaining wall blocks 10a, 10b, 10c, 10d are manufactured.

Further, according to the retaining wall blocks 10a, 10b, 10c, and 10d of the present embodiment, the lateral ribs 13a, 13b, 13c, and 13d are formed at a predetermined distance W away from the upper ends of the vertical walls 11a, 11b, 11c, and 11d. Therefore, the vertical walls 11a, 11a, 11b, 11c, 11d are spaced at a predetermined distance W from the upper ends of the vertical walls 11a, 11b, 11c, 11d according to the height and inclination of the retaining walls constructed from the retaining wall blocks 10a, 10b, 10c, 10d. 11b, 11c, 11d can be cut in the left-right direction.

The retaining wall blocks 10a, 10b, 10c, 10d in the present embodiment are first installed side by side with the retaining wall blocks 10a, 10b, 10c, 10d facing each other on the foundation, The wall blocks 10a, 10b, 10c, and 10d are connected so that the retaining wall is constructed. The connection between the retaining wall blocks 10a, 10b, 10c, and 10d is performed, for example, by arranging a connecting member on the back surface between the retaining wall blocks 10a, 10b, 10c, and 10d and using the bolts as the connecting members. , 10d.

According to the present embodiment, the lateral ribs 13a, 13b, 13c, 13d and the lateral ribs extending in the left-right direction on the back surfaces of the vertical walls 11a, 11b, 11c, 11d and the upper surfaces of the bottom plates 12a, 12b, 12c, 12d. Although 19a, 19b, 19c, and 19d are formed, the horizontal ribs 13a, 13b, 13c, and 13d extending in the left-right direction can be formed only on the back surface of the vertical walls 11a, 11b, 11c, and 11d.

Next, a second embodiment of the retaining wall block and its construction method according to the present invention will be described. FIG. 2 thru | or FIG. 6 is a figure explaining 2nd Embodiment of the retaining wall block which concerns on this invention, and its construction method. In the present embodiment, the same components as those shown in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

Fig.2 (a) is a figure which shows the retaining wall block 20a of this embodiment. In the retaining wall block 20a, a through hole 24a through which the connecting member 22 is inserted is formed in the left-right direction in the vicinity of the inside of the lateral rib 13a formed in the longitudinal wall 11a of the retaining wall block 10a in the first embodiment. A through-hole 26a through which the connecting member 22 is inserted in the vicinity of the inside of the lateral rib 19a formed in the bottom plate 12a of the retaining wall block 10a in the first embodiment is formed in the left-right direction, and the retaining wall block in the first embodiment A through hole 28a through which the connecting member 22 is inserted is formed in the left-right direction inside a corner portion where the vertical wall 11a of the 10a and the bottom plate 12a are joined. Examples of the connecting member 22 include steel materials such as bolts and reinforcing bars, or PC steel materials. PC steel gives prestress to the vertical wall of the retaining wall block in the left-right direction. Further, a through hole 24a formed in the vertical wall 11a of the retaining wall block 10a, a through hole 26a formed in the bottom plate 12a, and a through hole formed in a corner portion where the vertical wall 11a and the bottom plate 12a are joined. At both ends of 28a, when fixing the connecting member 22 at the end of the through hole 24a, the through hole 26a and the through hole 28a, the connecting member 22 is fixed to the vertical wall 11a, bottom plate 12a, and vertical wall of the retaining wall block 10a. 11a is fixed to the corner where the bottom plate 12a is joined and the end surface of the connecting member 22 is the vertical wall 11a of the retaining wall block 10a, the bottom plate 12a, and the right end surface of the corner where the vertical wall 11a and the bottom plate 12a are joined. Alternatively, the step portion can be formed so as not to protrude from the left end surface.

FIG. 2B is a view showing the retaining wall block 20b of the present embodiment. In the retaining wall block 20b, a through hole 24b through which the connecting member 22 is inserted is formed in the left-right direction in the vicinity of the inside of the lateral rib 13b formed in the longitudinal wall 11b of the retaining wall block 10b in the first embodiment. A through-hole 26b through which the connecting member 22 is inserted in the vicinity of the inside of the lateral rib 19b formed in the bottom plate 12b of the retaining wall block 10b in the first embodiment is formed in the left-right direction, and the retaining wall block in the first embodiment A through hole 28b through which the connecting member 22 is inserted is drilled in the left-right direction inside a corner portion where the vertical wall 11b of the 10b and the bottom plate 12b are joined. Examples of the connecting member 22 include steel materials such as bolts and reinforcing bars, or PC steel materials. Further, the through hole 24b formed in the vertical wall 11b of the retaining wall block 10b, the through hole 26b formed in the bottom plate 12b, and the through hole formed in the corner portion where the vertical wall 11b and the bottom plate 12b are joined At both ends of 28b, when fixing the connecting member 22 at the end of the through hole 24b, the through hole 26b, and the through hole 28b, the connecting member 22 is fixed to the vertical wall 11b, bottom plate 12b, and vertical wall of the retaining wall block 10b. 11b is fixed to the corner where the bottom plate 12b is joined and the end surface of the connecting member 22 is the vertical wall 11b of the retaining wall block 10b, the bottom plate 12b, and the right end surface of the corner where the vertical wall 11b and the bottom plate 12b are joined. Alternatively, the step portion can be formed so as not to protrude from the left end surface.

FIG.2 (c) is a figure which shows the retaining wall block 20c of this embodiment. In the retaining wall block 20c, a through hole 24c through which the connecting member 22 is inserted is formed in the left-right direction in the vicinity of the inside of the horizontal rib 13c formed in the vertical wall 11c of the retaining wall block 10c in the first embodiment. A through-hole 26c through which the connecting member 22 is inserted in the vicinity of the inside of the lateral rib 19c formed in the bottom plate 12c of the retaining wall block 10c in the first embodiment is drilled in the left-right direction, and the retaining wall block in the first embodiment A through hole 28c through which the connecting member 22 is inserted is formed in the left-right direction inside a corner portion where the vertical wall 11c and the bottom plate 12c of 10c are joined. Examples of the connecting member 22 include steel materials such as bolts and reinforcing bars, or PC steel materials. Further, a through hole 24c formed in the vertical wall 11c of the retaining wall block 10c, a through hole 26c formed in the bottom plate 12c, and a through hole formed in a corner portion where the vertical wall 11c and the bottom plate 12c are joined. At both ends of 28c, when fixing the connecting member 22 at the end of the through hole 24c, the through hole 26c and the through hole 28c, the connecting member 22 is fixed to the vertical wall 11c, bottom plate 12c, and vertical wall of the retaining wall block 10c. 11c and bottom plate 12c are fixed to the corner portion where the joint is joined, and the end surface of the connecting member 22 is the vertical wall 11c of the retaining wall block 10c, the bottom plate 12c, and the right end surface of the corner portion where the vertical wall 11c and the bottom plate 12c are joined. Alternatively, the step portion can be formed so as not to protrude from the left end surface.

FIG.2 (d) is a figure which shows the retaining wall block 20d of this embodiment. In the retaining wall block 20d, a through hole 24d through which the connecting member 22 is inserted is formed in the left-right direction in the vicinity of the inside of the horizontal rib 13d formed in the vertical wall 11d of the retaining wall block 10d in the first embodiment. A through-hole 26d through which the connecting member 22 is inserted in the vicinity of the inside of the lateral rib 19d formed in the bottom plate 12d of the retaining wall block 10d in the first embodiment is formed in the left-right direction, and the retaining wall block in the first embodiment A through hole 28d through which the connecting member 22 is inserted is drilled in the left-right direction inside a corner portion where the vertical wall 11d of the 10d and the bottom plate 12d are joined. Examples of the connecting member 22 include steel materials such as bolts and reinforcing bars, or PC steel materials. Further, the through-hole 24d formed in the vertical wall 11d of the retaining wall block 10d, the through-hole 26d formed in the bottom plate 12d, and the through-hole formed in the corner where the vertical wall 11d and the bottom plate 12d are joined At both ends of 28d, the connecting member 22 is formed on the vertical wall 11d and bottom plate 12d of the retaining wall block 10d when the connecting member 22 is fixed at the end of the through hole 24d, the through hole 26d and the through hole 28d. The end surface of the fixing member and the connecting member 22 fixed to the through hole 28d formed at the corner where the vertical wall 11d and the bottom plate 12d are joined to the through hole 26d, the vertical wall 11d of the retaining wall block 10d, the bottom plate 12d, Further, the step portion can be formed so as not to protrude from the right end surface or the left end surface of the corner portion where the vertical wall 11d and the bottom plate 12d are joined.

As described above, according to the retaining wall blocks 20a, 20b, 20c, 20d of the present embodiment, the lateral ribs 13a, 13b formed on the vertical walls 11a, 11b, 11c, 11d of the retaining wall blocks 20a, 20b, 20c, 20d. , 13c, near the inside of 13d, near the inside of the lateral ribs 19a, 19b, 19c, 19d formed on the bottom plates 12a, 12b, 12c, 12d, and the vertical walls 11a, 11b, 11c, 11d and the bottom plates 12a, 12b, Through holes 24a, 24b, 24c, 24d, through holes 26a, 26b, 26c, 26d and through holes 28a, 28b, 28c, 28d through which the connecting member 22 is inserted are provided in the corners where the 12c, 12d are joined. Since it is drilled in the left-right direction, the retaining wall blocks 20a, 20b, 20c, 20d are constructed between the retaining wall blocks 20a, 20b, 20c, 20d. The vertical walls 11a, 11b, 11c, 11d, the bottom plates 12a, 12b, 12c, 12d, and the connecting members 22 that pass through the corners where the vertical walls 11a, 11b, 11c, 11d and the bottom plates 12a, 12b, 12c, 12d join. Can be firmly connected.

Next, the construction method of the retaining wall blocks 20a, 20b, 20c, and 20d in this embodiment will be described. 3 to 6 are diagrams for explaining a method of constructing the retaining wall blocks 20a, 20b, 20c, and 20d in the present embodiment. 3 is a retaining wall constructed using the retaining wall block 20a, FIG. 4 is a retaining wall constructed using the retaining wall block 20b, and FIG. 5 is constructed using the retaining wall block 20c. FIG. 6 shows retaining walls constructed using retaining wall blocks 20d. First, the retaining wall blocks 20a, 20b, 20c, and 20d are installed side by side so that the side surfaces face each other on the foundation. Next, through holes 24a, 24b, 24c, 24d, bottom plates 12a, 12b, 12c, 12d formed in the vertical walls 11a, 11b, 11c, 11d of the retaining wall blocks 20a, 20b, 20c, 20d are connected to the connecting member 22. Through holes 26a, 26b, 26c, 26d, and through holes 28a formed in the corners where the vertical walls 11a, 11b, 11c, 11d and the bottom plates 12a, 12b, 12c, 12d join. , 28b, 28c, 28d to connect the retaining wall blocks 20a, 20b, 20c, 20d. In addition, both ends of the connecting member 22 are fixed members 23, and vertical walls 11a, 11b, 11c, 11d of retaining wall blocks 20a, 20b, 20c, 20d, bottom plates 12a, 12b, 12c, 12d, and vertical walls 11a, 11b. , 11c, 11d and the bottom plates 12a, 12b, 12c, 12d are fixed to the corners where they are joined. The connecting member 22 is fixed by the fixing member 23, for example, at least a portion of the connecting member 22 fixed by the fixing member 23 is engraved with a male screw, and the fixing member 23 is engraved with a female screw passing therethrough. The fixing member 23 is screwed into the connecting member 22 and the fixing member 23 is tightened. When the connecting member 22 is a PC steel material, a tension force is introduced into the PC steel material to connect the retaining wall blocks 20a, 20b, 20c, and 20d. In this way, the retaining wall is constructed using the retaining wall blocks 20a, 20b, 20c, and 20d.

As described above, according to the construction method of the retaining wall blocks 20a, 20b, 20c, and 20d of the present embodiment, the vertical walls 11a, 11b, 11c, and 11d have the through holes 24a, 24b, 24c, and 24d through which the connecting member 22 is inserted. The bottom plates 12a, 12b, 12c, 12d are drilled in the left-right direction through holes 26a, 26b, 26c, 26d through which the connecting member 22 is inserted, and the vertical walls 11a, 11b, 11c, 11d Retaining wall blocks 20a, 20b, 20c, 20d in which through holes 28a, 28b, 28c, 28d through which the connecting member 22 is inserted are drilled in the left-right direction at the corners of the bottom plates 12a, 12b, 12c, 12d, Install the connecting member 22 in the through holes 24a, 24b, 24c, 24d, the through holes 26a, 26b, 26c, 26d, and the through holes 28a, 28b, 28c, 28d by arranging them side by side on the foundation. The retaining wall blocks 20a, 20b, 20c, 20d are constructed of retaining wall blocks 20a, 20b, 20c, 20d so that the retaining wall blocks 20a, 20b, 20c, 20d are connected. Strong with connecting member 22 that penetrates By connecting and embedding on the back of the retaining wall, earth pressure applied to the retaining wall and impact from the front of the retaining wall can be received by the entire retaining wall, acting on the rear surface of the retaining wall in the vertical and horizontal directions The strength of the retaining wall can be increased against the distributed load of earth pressure and the impact from the front of the retaining wall, and when the part of the foundation sinks, the retaining wall block of the sinked part is connected It can be supported by other retaining wall blocks, and the retaining wall block can be prevented from sinking as well. In addition, the retaining wall block at the corner of the retaining wall receives earth pressure applied to the retaining wall from two directions by embankment on the back of the retaining wall, so a larger load is applied compared to the retaining wall block of other parts. However, because the retaining wall block at the corner of the retaining wall is firmly connected to the retaining wall block of the other part by the connecting member 22 that penetrates the retaining wall block, The earth pressure applied to the retaining wall can be received by the entire retaining wall and the corner of the retaining wall against the distributed load of earth pressure acting in the vertical and lateral directions on the back of the retaining wall block at the corner of the retaining wall. The strength of the retaining wall block can be increased.

Further, when the connecting member 22 is a PC steel material, a prestress can be applied between the retaining wall blocks 20a, 20b, 20c, and 20d to be connected in order to introduce and connect the tension force to the PC steel material. The wall blocks 20a, 20b, 20c, and 20d can be more firmly connected.

In the present embodiment, the retaining wall blocks 20a, 20b, 20c, and 20d penetrate the vertical walls 11a, 11b, 11c, and 11d and the through holes 24a, 24b, 24c, and 24d, and the bottom plates 12a, 12b, 12c, and 12d, respectively. Through holes 28a, 28b, 28c, and 28d are formed in the corners of the holes 26a, 26b, 26c, and 26d, the vertical walls 11a, 11b, 11c, and 11d and the bottom plates 12a, 12b, 12c, and 12d. The hole is a vertical wall 11a, 11b, 11c, 11d, bottom plate 12a, 12b, 12c, 12, or one or more portions of the corners of the vertical wall 11a, 11b, 11c, 11d and the bottom plate 12a, 12b, 12c, 12d Can be drilled.

In this embodiment, between the retaining wall blocks 20a, 20b, 20c, and 20d, the connecting member 22 is formed in the vertical walls 11a, 11b, 11c, and 11d of the retaining wall blocks 20a, 20b, 20c, and 20d. Through holes 24a, 24b, 24c, 24d, through holes 26a, 26b, 26c, 26d drilled in the bottom plates 12a, 12b, 12c, 12d, and vertical walls 11a, 11b, 11c, 11d and bottom plates 12a, 12b, 12c and 12d are inserted and connected to through holes 28a, 28b, 28c and 28d formed in the corners where they are joined, but vertical walls 11a, 11b, 11c and 11d, and bottom plates 12a, 12b and 12c , 12, or the vertical wall 11a, 11b, 11c, 11d and the bottom plate 12a, 12b, 12c, 12d are inserted and connected to the through hole formed in one or a plurality of portions of the corner portion Can do.

In this embodiment, between the retaining wall blocks 20a, 20b, 20c, and 20d, the connecting member 22 is formed in the vertical walls 11a, 11b, 11c, and 11d of the retaining wall blocks 20a, 20b, 20c, and 20d. Through holes 24a, 24b, 24c, 24d, through holes 26a, 26b, 26c, 26d drilled in the bottom plates 12a, 12b, 12c, 12d, and vertical walls 11a, 11b, 11c, 11d and bottom plates 12a, 12b, As shown in FIGS. 7 to 10, the retaining wall blocks 20a, 20b are connected to the through holes 28a, 28b, 28c, 28d formed in the corners where the members 12c, 12d are joined. , 20c, 20d, the horizontal ribs 13a, 11b, 11c, 11d formed in the horizontal ribs 13a, 13b, 13c, 13d, in the vicinity of the inside, and the bottom ribs 12a, 12b, 12c, 12d formed in the horizontal ribs 19a, 19b , 19c, 19d, near the interior, and inside the corners where the vertical walls 11a, 11b, 11c, 11d and the bottom plates 12a, 12b, 12c, 12d join, from the side end faces of the retaining wall blocks 20a, 20b, 20c, 20d Insertion of the vertical walls 11a, 11b, 11c, 11d through which the connecting member 22A is inserted 24Aa, 24Ab, 24Ac, 24Ad, insertion hole 26Aa, 26Ab, 26Ac, 26Ad of bottom plate 12a, 12b, 12c, 12d and vertical wall 11a, 11b, 11c, 11d and bottom plate 12a, 12b, 12c, 12d are joined The corner insertion holes 28Aa, 28Ab, 28Ac, and 28Ad are formed, and the insertion holes 24Aa, 24Ab, 24Ac, and 24Ad are communicated with the rear surfaces of the vertical walls 11a, 11b, 11c, and 11d, and the connecting member 22A is fixed to the fixing member 23A. The holes 25Aa, 25Ab, 25Ac, 25Ad and the bottom plates 12a, 12b, 12c, 12d communicate with the insertion holes 26Aa, 26Ab, 26Ac, 26Ad, and the connecting member 22A can be fixed with the fixing member 23A. The holes 27Aa, 27Ab, 27Ac, 27Ad and the vertical walls 11a, 11b, 11c, 11d and the bottom plates 12a, 12b, 12c, 12d communicate with the insertion holes 28Aa, 28Ab, 28Ac, 28Ad on the back of the corners Holes 29Aa, 29Ab, 29Ac, and 29Ad that can fix the connecting member 22A with the fixing member 23A can be formed to connect the retaining wall blocks 20a, 20b, 20c, and 20d.

Between the retaining wall blocks 20a, 20b, 20c, 20d, the insertion holes 24Aa, 24Ab, 24Ac, 24Ad of the vertical walls 11a, 11b, 11c, 11d, the insertion holes 26Aa, 26Ab of the bottom plates 12a, 12b, 12c, 12d, 26Ac, 26Ad, or vertical wall 11a, 11b, 11c, 11d and corner plate insertion holes 28Aa, 28Ab, 28Ac, 28Ad joining the bottom plates 12a, 12b, 12c, 12d are retaining wall blocks 20a, 20b, 20c, 20d A hole 25Aa that is drilled in one or a plurality of parts, communicates with the insertion holes 24Aa, 24Ab, 24Ac, and 24Ad on the back surface of the vertical walls 11a, 11b, 11c, and 11d and can fix the connecting member 22A with the fixing member 23A. , 25Ab, 25Ac, 25Ad, holes 27Aa, 27Ab, 27Ac, which communicate with the insertion holes 26Aa, 26Ab, 26Ac, 26Ad on the upper surface of the bottom plates 12a, 12b, 12c, 12d and can fix the connecting member 22A with the fixing member 23A, 27Ad, or the vertical holes 11a, 11b, 11c, 11d and the bottom plates 12a, 12b, 12c, 12d are in communication with the insertion holes 28Aa, 28Ab, 28Ac, 28Ad on the back of the corners where the bottom plates 12a, 12b, 12c, 12d are joined, and the connecting member 22A is fixed to the fixing member 23A. Holes 29Aa, 2 that can be fixed with 9Ab, 29Ac, and 29Ad can be drilled and connected to one or more portions of the retaining wall blocks 20a, 20b, 20c, and 20d.

Note that examples of the connecting member 22A include steel materials such as bolts and reinforcing bars, or PC steel materials. In addition, the fixing of the connecting member 22A by the fixing member 23A is, for example, a male screw is engraved in at least a portion of the connecting member 22A fixed by the fixing member 23A, and the female screw is engraved through the fixing member 23A. The fixing member 23A is screwed into the connecting member 22A to tighten the fixing member 23A. When the connecting member 22A is a PC steel material, a tension force is introduced into the PC steel material to connect the retaining wall blocks 20a, 20b, 20c, and 20d.

In the present embodiment, the retaining wall block 20B at the corner of the retaining wall constructed using the retaining wall blocks 20a, 20b, 20c, and 20d is perpendicular to the surface of the foundation as shown in FIG. And a bottom plate 12B extending in the horizontal direction in contact with the surface of the foundation from the lower end of the back surface of the vertical wall 11B. The vertical wall 11B is formed in a shape that is bent at a right angle in the center when viewed from above. Further, the central portion of the vertical wall 11B is formed in a triangular shape with the back side as the bottom when viewed from above. On the back surface of the vertical wall 11B, there is formed a horizontal rib 13B extending in the left-right direction at a predetermined distance W from the upper end of the vertical wall 11B. The corner where the vertical wall 11B and the bottom plate 12B are joined has a front side formed at a right angle and a back side formed in an R shape. A plurality of grooves 18B extending in the left-right direction are formed on the R-shaped surface of the corner where the vertical wall 11B and the bottom plate 12B are joined. Further, a through hole 24B through which the connecting member 22 is inserted is formed in the left-right direction in the vicinity of the inside of the horizontal rib 13B formed on the vertical wall 11B, and is connected to the inside of the corner where the vertical wall 11B and the bottom plate 12B are joined. A through hole 28B through which the member 22 is inserted is formed in the left-right direction. The bottom plate 12B is provided with an insertion hole 26B through which the connecting member 22 is inserted from the side end face, and a hole 27B that is in communication with the insertion hole 26B and is capable of fixing the connecting member 22 with the fixing member 23. ing. Note that one end of the connecting member 22 inserted into the through hole 24B and the through hole 28B is fixed to the vertical wall 11B of the retaining wall block 20B by the fixing member 23 and the corner portion where the vertical wall 11B and the bottom plate 12B are joined. Yes.

Next, a third embodiment of the retaining wall block and its construction method according to the present invention will be described. FIG. 12 thru | or FIG. 16 is a figure explaining 3rd Embodiment of the retaining wall block which concerns on this invention, and its construction method. In the present embodiment, the same components as those shown in the second embodiment are denoted by the same reference numerals, and the description thereof is omitted.

Fig.12 (a) is a figure which shows the retaining wall block 30a of this embodiment. The retaining wall block 30a is molded from reinforced concrete. The retaining wall block 30a is obtained by replacing the bottom plate 12a of the retaining wall block 20a in the second embodiment with a bottom plate 32a. In the bottom plate 32a, a reinforcing bar 34a projects from the rear end face of the lateral rib 19a formed on the bottom plate 12a of the retaining wall block 20a in the second embodiment.

FIG.12 (b) is a figure which shows the retaining wall block 30b of this embodiment. The retaining wall block 30b is formed from reinforced concrete. The retaining wall block 30b is obtained by replacing the bottom plate 12b of the retaining wall block 20b in the second embodiment with a bottom plate 32b. In the bottom plate 32b, a reinforcing bar 34b projects from the rear end face of the lateral rib 19b formed on the bottom plate 12b of the retaining wall block 20b in the second embodiment.

FIG.12 (c) is a figure which shows the retaining wall block 30c of this embodiment. The retaining wall block 30c is molded from reinforced concrete. The retaining wall block 30c is obtained by replacing the bottom plate 12c of the retaining wall block 20c in the second embodiment with a bottom plate 32c. In the bottom plate 32c, a reinforcing bar 34c projects from the rear end surface of the lateral rib 19c formed on the bottom plate 12c of the retaining wall block 20c in the second embodiment.

FIG. 12D is a view showing the retaining wall block 30d of the present embodiment. The retaining wall block 30d is molded from reinforced concrete. The retaining wall block 30d is obtained by replacing the bottom slab 12d of the retaining wall block 20d in the second embodiment with a bottom slab 32d. The bottom plate 32d has a reinforcing bar 34d protruding from the rear end surface of the lateral rib 19d formed on the bottom plate 12d of the retaining wall block 20d in the second embodiment.

As described above, according to the retaining wall blocks 30a, 30b, 30c, and 30d of the present embodiment, the bottom plates 32a, 32b, 32c, and 32d of the retaining wall blocks 30a, 30b, 30c, and 30d include the reinforcing bars 34a, 34b, 34c, and 34d. Since it protrudes from the rear end surface and is embedded in the front-rear direction, the retaining wall is constructed with retaining wall blocks 30a, 30b, 30c, 30d, and the reinforcing bars 36 are arranged rearward from the rear end surfaces of the bottom plates 32a, 32b, 32c, 32d. Then, by placing the concrete 38, the length of the bottom plates 32a, 32b, 32c, 32d in the front-rear direction can be increased at the site where the retaining wall is constructed.

Next, the construction method of the retaining wall blocks 30a, 30b, 30c, 30d in this embodiment will be described. FIG. 13 to FIG. 16 are diagrams for explaining a construction method of the retaining wall blocks 30a, 30b, 30c, and 30d in the present embodiment. 13 is a retaining wall constructed using a retaining wall block 30a, FIG. 14 is a retaining wall constructed using a retaining wall block 30b, and FIG. 15 is constructed using a retaining wall block 30c. FIG. 16 shows retaining walls constructed using retaining wall blocks 30d. First, the retaining wall blocks 30a, 30b, 30c, and 30d are installed side by side on the foundation so that the side surfaces face each other. Next, through holes 24a, 24b, 24c, 24d, bottom plates 12a, 12b, 12c, 12d formed in the vertical walls 11a, 11b, 11c, 11d of the retaining wall blocks 30a, 30b, 30c, 30d are connected to the connecting member 22. Through holes 26a, 26b, 26c, 26d and through holes 28a formed in the corners where the vertical walls 11a, 11b, 11c, 11d and the bottom plates 32a, 32b, 32c, 32d join. , 28b, 28c, 28d to connect the retaining wall blocks 30a, 30b, 30c, 30d. Note that both end portions of the connecting member 22 are fixed members 23 and the vertical walls 11a, 11b, 11c, 11d of the retaining wall blocks 30a, 30b, 30c, 30d, the bottom plates 32a, 32b, 32c, 32d, and the vertical walls 11a, 11b. , 11c, 11d and the bottom plates 32a, 32b, 32c, 32d are fixed to the corners where they are joined. Next, the reinforcing bars 36 are arranged rearward from the rear end surfaces of the bottom plates 32a, 32b, 32c, and 32d, and concrete 38 is placed. In this way, the retaining wall is constructed using the retaining wall blocks 30a, 30b, 30c, and 30d.

As mentioned above, according to the construction method of the retaining wall blocks 30a, 30b, 30c, 30d of the present embodiment, the retaining wall blocks 30a, 30b, 30c, 30d are installed side by side so that the side surfaces face each other on the foundation, and the bottom plate 32a, 32b, 32c, 32d In order to construct a retaining wall by arranging reinforcing bars 36 behind the rear end face and placing concrete 38, the front and back of the bottom plates 32a, 32b, 32c, 32d The length of the direction can be lengthened, and when the earth pressure due to embankment on the back of the retaining wall is applied to the vertical walls 11a, 11b, 11c, 11d, the retaining wall's resistance to earth pressure is improved. can do.

Next, a fourth embodiment of the retaining wall block and its construction method according to the present invention will be described. FIG. 17 thru | or FIG. 25 is a figure explaining 4th Embodiment of the retaining wall block which concerns on this invention, and its construction method. In the present embodiment, the same components as those shown in the second embodiment are denoted by the same reference numerals, and the description thereof is omitted.

FIG. 17A is a view showing the retaining wall block 40a of the present embodiment. The retaining wall block 40a is obtained by replacing the vertical wall 11a of the retaining wall block 20a in the second embodiment with a vertical wall 42a. Vertical ribs 43a, 44a, and 45a are formed on the vertical wall 42a. The vertical ribs 43a, 44a, 45a are obtained by extending the vertical ribs 14a, 15a, 16a formed on the retaining wall block 20a in the second embodiment to the upper end portion of the vertical wall 11a. The vertical wall 42a is provided with a hole 48a in the upper end surface in the vicinity of the upper surface of the vertical rib 43a to which the support 47 of the guard fence 46 can be fixed. Similarly to the case of the second embodiment, the through hole 24a formed in the vertical wall 42a of the retaining wall block 40a, the through hole 26a formed in the bottom plate 12a, and the vertical wall 42a and the bottom plate 12a At both ends of the through hole 28a formed at the corner to be joined, when the connecting member 22 is fixed at the end of the through hole 24a, the through hole 26a and the through hole 28a, the connecting member 22 is attached to the retaining wall block 40a. The vertical wall 42a, the bottom plate 12a, and the end surfaces of the fixing member 23 and the connecting member 22 fixed to the corners where the vertical wall 42a and the bottom plate 12a are joined are the vertical wall 42a, the bottom plate 12a, and the vertical wall 42a of the retaining wall block 40a. The step portion can be formed so as not to protrude from the right end surface or the left end surface of the corner portion where the bottom plate 12a is joined.

FIG. 17B is a view showing the retaining wall block 40b of the present embodiment. In the retaining wall block 40b, the vertical wall 11b of the retaining wall block 10b in the second embodiment is a vertical wall 42b. Vertical ribs 43b and 44b are formed on the vertical wall 42b. The vertical ribs 43b and 44b are obtained by extending the vertical ribs 14b and 15b formed on the retaining wall block 20b in the second embodiment to the upper end portion of the vertical wall 11b. The vertical wall 42b is formed with a hole 48b in the upper end surface in the vicinity of the upper surface of the vertical rib 44b to which the support 47 of the protective fence 46 can be fixed. Similarly to the case of the second embodiment, the through hole 24b formed in the vertical wall 42b of the retaining wall block 40b, the through hole 26b formed in the bottom plate 12b, and the vertical wall 42b and the bottom plate 12b At both ends of the through hole 28b formed at the corner to be joined, the connecting member 22 is fixed to the retaining wall block 40b when the connecting member 22 is fixed at the end of the through hole 24b, the through hole 26b, and the through hole 28b. The vertical wall 42b, the bottom plate 12b, and the end surfaces of the fixing member 23 and the connecting member 22 fixed to the corners where the vertical wall 42b and the bottom plate 12b are joined are the vertical wall 42b, the bottom plate 12b, and the vertical wall 42b of the retaining wall block 40b. The step portion can be formed so as not to protrude from the right end surface or the left end surface of the corner portion where the bottom plate 12b is joined.

FIG. 17C is a view showing the retaining wall block 40c of the present embodiment. In the retaining wall block 40c, the longitudinal wall 11c of the retaining wall block 20c in the second embodiment is a longitudinal wall 42c. A vertical rib 43c is formed on the vertical wall 42c. The vertical rib 43c is obtained by extending the vertical rib 14c formed on the retaining wall block 20c in the second embodiment to the upper end portion of the vertical wall 11c. The vertical wall 42c is provided with a hole 48c in the upper end surface near the upper surface of the vertical rib 43c, to which the support 47 of the protective fence 46 can be fixed. Similarly to the case of the second embodiment, the through hole 24c formed in the vertical wall 42c of the retaining wall block 40c, the through hole 26c formed in the bottom plate 12c, and the vertical wall 42c and the bottom plate 12c At both ends of the through hole 28c formed at the corner to be joined, the connecting member 22 is fixed to the retaining wall block 40c when the connecting member 22 is fixed at the end of the through hole 24c, the through hole 26c, and the through hole 28c. The vertical wall 42c, the bottom plate 12c, and the end surfaces of the fixing member 23 and the connecting member 22 fixed to the corners where the vertical wall 42c and the bottom plate 12c are joined are the vertical wall 42c, the bottom plate 12c, and the vertical wall 42c of the retaining wall block 40c. The step portion can be formed so as not to protrude from the right end surface or the left end surface of the corner portion where the bottom plate 12c is joined.

FIG. 17D is a view showing the retaining wall block 40d of this embodiment. In the retaining wall block 40d, the vertical wall 11d of the retaining wall block 20d in the second embodiment is a vertical wall 42d. A vertical rib 43d is formed on the vertical wall 42d. The vertical rib 43d extends upward from the horizontal rib 13d formed on the retaining wall block 20d in the second embodiment to the upper end of the vertical wall 11d. The vertical wall 42c is provided with a hole 48d in the upper end surface in the vicinity of the upper surface of the vertical rib 43d to which the support 47 of the protective fence 46 can be fixed. Similarly to the case of the second embodiment, the through hole 24d formed in the vertical wall 42d of the retaining wall block 40d, the through hole 26d formed in the bottom plate 12d, and the vertical wall 42d and the bottom plate 12d At both ends of the through hole 28d formed at the corner to be joined, the connecting member 22 is fixed to the retaining wall block 40d when the connecting member 22 is fixed at the end of the through hole 24d, the through hole 26d, and the through hole 28d. The vertical wall 42d, the bottom plate 12d, and the end surfaces of the fixing member 23 and the connecting member 22 fixed to the corners where the vertical wall 42d and the bottom plate 12d are joined are the vertical wall 42d, the bottom plate 12d, and the vertical wall 42d of the retaining wall block 40d. The step portion can be formed so as not to protrude from the right end surface or the left end surface of the corner where the bottom plate 12d and the bottom plate 12d are joined.

As described above, according to the retaining wall blocks 40a, 40b, 40c, and 40d of the present embodiment, the vertical ribs 43a, 43b, 43c, and 43d that extend downward from the upper end portions of the rear surfaces of the vertical walls 42a, 42b, 42c, and 42d. Since the holes 48a, 48b, 48c, 48d to which the support 47 of the protective fence 46 can be fixed are formed in the vicinity of the upper surfaces of the vertical ribs 43a, 43b, 43c, 43d, the retaining wall block 40a , 40b, 40c, 40d, holes 48a, 48b drilled in the vicinity of the upper surface of the vertical ribs 43a, 43b, 43c, 43d formed on the retaining wall of the support fence 47 of the protective fence 46. The guard fence 46 can be fixed by inserting it into 48c, 48d.

Next, the construction method of the retaining wall blocks 40a, 40b, 40c, 40d in this embodiment will be described. 18 to 25 are views for explaining a method of constructing the retaining wall blocks 40a, 40b, 40c, and 40d in the present embodiment. 18 is a retaining wall constructed using the retaining wall block 40a, FIG. 19 is a retaining wall constructed using the retaining wall block 40b, and FIG. 20 is constructed using the retaining wall block 40c. FIG. 21 shows retaining walls constructed using retaining wall blocks 40d. First, the retaining wall blocks 40a, 40b, 40c, and 40d are installed side by side on the foundation so that the side surfaces face each other. Next, through holes 24a, 24b, 24c, 24d, bottom plates 12a, 12b, 12c, 12d formed in the vertical walls 42a, 42b, 42c, 42d of the retaining wall blocks 40a, 40b, 40c, 40d. Through holes 26a, 26b, 26c, 26d and through holes 28a formed in the corners where the vertical walls 42a, 42b, 42c, 42d and the bottom plates 12a, 12b, 12c, 12d join. , 28b, 28c, 28d to connect the retaining wall blocks 40a, 40b, 40c, 40d. In addition, both ends of the connecting member 22 are fixed members 23 and vertical walls 42a, 42b, 42c, 42d of retaining wall blocks 40a, 40b, 40c, 40d, bottom plates 12a, 12b, 12c, 12d, and vertical walls 42a, 42b. , 42c, 42d and the bottom plates 12a, 12b, 12c, 12d are fixed to the corners where they are joined. Next, the column 47 of the protective fence 46 is inserted into the holes 48a, 48b, 48c, 48d formed in the vicinity of the upper surfaces of the vertical ribs 43a, 43b, 43c, 43d, and mortar is inserted into the holes 48a, 48b, 48c, 48d. Fill and fix. Further, as shown in FIGS. 22 to 25, when the bottom plates 12a, 12b, 12c, and 12d are the bottom plates 32a, 32b, 32c, and 32d of the third embodiment, Perforated holes 24a, 24b, 24c, 24d drilled in vertical walls 42a, 42b, 42c, 42d of retaining wall blocks 40a, 40b, 40c, 40d, drilled in bottom plates 32a, 32b, 32c, 32d Through-holes 26a, 26b, 26c, 26d and through-holes 28a, 28b, 28c, 28d drilled at corners where the vertical walls 42a, 42b, 42c, 42d and the bottom plates 32a, 32b, 32c, 32d are joined The retaining wall blocks 40a, 40b, 40c, 40d are connected to each other, and both end portions of the connecting member 22 are fixed to the vertical walls 42a, 42b, 42c of the retaining wall blocks 40a, 40b, 40c, 40d by the fixing member 23. 42d, bottom plates 32a, 32b, 32c, 32d, and vertical walls 42a, 42b, 42c, 42d and bottom plates 32a, 32b, 32c, 32d are fixed to corners where they are joined, and then the bottom plates 32a, 32b, 32c, 32d Placing concrete 38 with reinforcing bars 36 arranged rearward from the rear end face The In this way, the retaining wall is constructed using the retaining wall blocks 40a, 40b, 40c, and 40d.

As mentioned above, according to the construction method of the retaining wall blocks 40a, 40b, 40c, 40d of the present embodiment, the vertical ribs 43a, 43b extending downward from the upper end of the back surface of the vertical walls 42a, 42b, 42c, 42d, 43c and 43d are formed, and holes 48a, 48b, 48c and 48d to which the support 47 of the protective fence 46 can be fixed are formed near the upper surface of the vertical ribs 43a, 43b, 43c and 43d. When building a retaining wall with the wall blocks 40a, 40b, 40c, and 40d and providing the protective fence 46, the support fence 46 is fixed to a separate member and the protective fence 46 is provided at a lower cost than when the protective fence 46 is provided. The protective fence 46 can be easily provided, and the holes 48a and 48b formed in the vicinity of the upper surfaces of the vertical ribs 43a, 43b, 43c and 43d formed in the retaining wall blocks 40a, 40b, 40c and 40d. , 48c, 48d to fix the protective fence 46, the protective fence 46 can be firmly fixed.

Next, a fifth embodiment of the retaining wall block and its construction method according to the present invention will be described. FIG. 26 thru | or FIG. 34 is a figure explaining 5th Embodiment of the retaining wall block which concerns on this invention, and its construction method. In the present embodiment, the same components as those shown in the second embodiment are denoted by the same reference numerals, and the description thereof is omitted.

Fig.26 (a) is a figure which shows the retaining wall block 50a of this embodiment. The retaining wall block 50a is obtained by replacing the vertical wall 11a of the retaining wall block 20a in the second embodiment with a vertical wall 52a. The vertical wall 52a is formed with a horizontal rib 54a that is the horizontal rib 13a of the second embodiment formed on the upper end of the vertical wall 11a. A through hole 55a through which the connecting member 22 is inserted is formed in the left-right direction in the vicinity of the inside of the lateral rib 54a. Further, vertical ribs 56a, 57a, 58a are formed on the vertical wall 52a. The vertical ribs 56a, 57a, and 58a are obtained by extending the vertical ribs 14a, 15a, and 16a in the second embodiment to the horizontal rib 54a. Further, a hole 59a through which the support 47 of the protective fence 46 can be fixed is formed in the upper surface of the lateral rib 54a. Similarly to the case of the second embodiment, the through hole 55a formed in the vertical wall 52a of the retaining wall block 50a, the through hole 26a formed in the bottom plate 12a, and the vertical wall 52a and the bottom plate 12a At both ends of the through hole 28a formed at the corner to be joined, when the connecting member 22 is fixed at the end of the through hole 55a, the through hole 26a, and the through hole 28a, the connecting member 22 is attached to the retaining wall block 50a. The vertical wall 52a, the bottom plate 12a, and the end surfaces of the fixing member 23 and the connecting member 22 fixed to the corners where the vertical wall 52a and the bottom plate 12a are joined are the vertical wall 52a, the bottom plate 12a, and the vertical wall 52a of the retaining wall block 50a. The step portion can be formed so as not to protrude from the right end surface or the left end surface of the corner portion where the bottom plate 12a is joined.

FIG. 26B is a view showing the retaining wall block 50b of the present embodiment. The retaining wall block 50b is obtained by replacing the vertical wall 11b of the retaining wall block 20b in the second embodiment with a vertical wall 52b. On the vertical wall 52b, a horizontal rib 54b is formed, which is the horizontal rib 13b of the second embodiment formed on the upper end of the vertical wall 11b. A through hole 55b through which the connecting member 22 is inserted is formed in the left-right direction in the vicinity of the inside of the lateral rib 54b. Further, vertical ribs 56b and 57b are formed on the vertical wall 52b. The vertical ribs 56b and 57b are obtained by extending the vertical ribs 14b and 15b in the second embodiment to the horizontal ribs 54b. Further, a hole 59b in which the support 47 of the protective fence 46 can be fixed is formed on the upper surface of the lateral rib 54b. Similarly to the case of the second embodiment, the through hole 55b formed in the vertical wall 52b of the retaining wall block 50b, the through hole 26b formed in the bottom plate 12b, and the vertical wall 52b and the bottom plate 12b At both ends of the through hole 28b formed at the corner to be joined, the connecting member 22 is fixed to the retaining wall block 50b when the connecting member 22 is fixed at the end of the through hole 55b, the through hole 26b, and the through hole 28b. The vertical wall 52b, the bottom plate 12b, and the end surfaces of the fixing member 23 and the connecting member 22 fixed to the corners where the vertical wall 52b and the bottom plate 12b are joined are the vertical wall 52b, the bottom plate 12b, and the vertical wall 52b of the retaining wall block 50b. The step portion can be formed so as not to protrude from the right end surface or the left end surface of the corner portion where the bottom plate 12b is joined.

FIG. 26C is a view showing the retaining wall block 50c of the present embodiment. The retaining wall block 50c is obtained by replacing the vertical wall 11c of the retaining wall block 20c in the second embodiment with a vertical wall 52c. The vertical wall 52c is formed with a horizontal rib 54c, which is the horizontal rib 13c of the second embodiment formed on the upper end of the vertical wall 11c. A through hole 55c through which the connecting member 22 is inserted is formed in the left-right direction in the vicinity of the inside of the lateral rib 54c. Further, vertical ribs 56c are formed on the vertical wall 52c. The vertical rib 56c is obtained by extending the vertical rib 14c in the second embodiment to the horizontal rib 54c. Further, a hole 59c through which the support 47 of the protective fence 46 can be fixed is formed on the upper surface of the lateral rib 54c. Similarly to the case of the second embodiment, the through hole 55c formed in the vertical wall 52c of the retaining wall block 50c, the through hole 26c formed in the bottom plate 12c, and the vertical wall 52c and the bottom plate 12c At both ends of the through hole 28c formed at the corner to be joined, the connecting member 22 is fixed to the retaining wall block 50c when the connecting member 22 is fixed at the end of the through hole 55c, the through hole 26c, and the through hole 28c. The vertical wall 52c, the bottom plate 12c, and the end surfaces of the fixing member 23 and the connecting member 22 fixed to the corners where the vertical wall 52c and the bottom plate 12c are joined are the vertical wall 52c, the bottom plate 12c, and the vertical wall 52c of the retaining wall block 50c. The step portion can be formed so as not to protrude from the right end surface or the left end surface of the corner portion where the bottom plate 12c is joined.

FIG. 26D is a diagram showing the retaining wall block 50d of the present embodiment. The retaining wall block 50d is obtained by replacing the vertical wall 12d of the retaining wall block 20d in the second embodiment with a vertical wall 52d. The vertical wall 52d is formed with a horizontal rib 54d, which is the horizontal rib 13d of the second embodiment formed on the upper end of the vertical wall 11d. A through hole 55d through which the connecting member 22 is inserted is formed in the left-right direction in the vicinity of the inside of the lateral rib 54d. Further, a hole 59d through which the support 47 of the protective fence 46 can be fixed is formed on the upper surface of the lateral rib 54d. Similarly to the case of the second embodiment, the through hole 55d formed in the vertical wall 52d of the retaining wall block 50d, the through hole 26d formed in the bottom plate 12d, and the vertical wall 52d and the bottom plate 12d At both ends of the through hole 28d formed at the corner to be joined, the connecting member 22 is fixed to the retaining wall block 50d when the connecting member 22 is fixed at the end of the through hole 55d, the through hole 26d, and the through hole 28d. The vertical wall 52d, the bottom plate 12d, and the end face of the fixing member 23 and the connecting member 22 fixed to the corner where the vertical wall 52d and the bottom plate 12d are joined are the vertical wall 52d, the bottom plate 12d, and the vertical wall 52d of the retaining wall block 50d. The step portion can be formed so as not to protrude from the right end surface or the left end surface of the corner where the bottom plate 12d and the bottom plate 12d are joined.

As described above, according to the retaining wall blocks 50a, 50b, 50c, and 50d of the present embodiment, the horizontal ribs 54a, 54b, 54c, and 54d are provided at the upper ends of the vertical walls 52a, 52b, 52c, and 52d, and the horizontal ribs 54a, Since holes 59a, 59b, 59c, 59d to which the support 47 of the protective fence 46 can be fixed are formed on the upper surfaces of 54b, 54c, 54d, retaining walls are provided by retaining wall blocks 50a, 50b, 50c, 50d. Holes 59a, 59b, 59c, which are formed in the upper surface of the lateral ribs 54a, 54b, 54c, 54d formed in the retaining wall blocks 50a, 50b, 50c, 50d. The guard fence 47 can be fixed by inserting it into 59d.

Next, the construction method of the retaining wall blocks 50a, 50b, 50c, 50d in this embodiment will be described. FIGS. 27 to 34 are views for explaining a construction method of the retaining wall blocks 50a, 50b, 50c, 50d in the present embodiment. 27 is a retaining wall constructed using the retaining wall block 50a, FIG. 28 is a retaining wall constructed using the retaining wall block 50b, and FIG. 29 is constructed using the retaining wall block 50c. FIG. 30 shows retaining walls constructed using retaining wall blocks 50d. First, the retaining wall blocks 50a, 50b, 50c, and 50d are installed side by side on the foundation so that the side surfaces face each other. Next, through holes 55a, 55b, 55c, 55d formed in the vertical walls 52a, 52b, 52c, 52d of the retaining wall blocks 50a, 50b, 50c, 50d, and the bottom plates 12a, 12b, 12c, Through-holes 26a, 26b, 26c, 26d drilled in 12d, and through-holes drilled in corners where vertical walls 52a, 52b, 52c, 52d and bottom plates 12a, 12b, 12c, 12d are joined It inserts in 28a, 28b, 28c, 28d, and connects between the retaining wall blocks 50a, 50b, 50c, 50d. Note that both ends of the connecting member 22 are fixed members 23 and retaining wall blocks 50a, 50b, 50c, 50d vertical walls 52a, 52b, 52c, 52d, bottom plates 12a, 12b, 12c, 12d, and vertical walls 52a, 52b. , 52c, 52d and the bottom plates 12a, 12b, 12c, 12d are fixed to the corners where they are joined. Next, the support 47 of the protective fence 46 is inserted into the holes 59a, 59b, 59c, 59d formed on the upper surfaces of the lateral ribs 54a, 54b, 54c, 54d, and the holes 59a, 59b, 59c, 59d are filled with mortar or the like. And fix. As shown in FIGS. 31 to 34, when the bottom plates 53a, 53b, 53c, and 53d are the bottom plates 32a, 32b, 32c, and 32d of the third embodiment, Perforated holes 55a, 55b, 55c, and 55d formed in the vertical walls 52a, 52b, 52c, and 52d of the retaining wall blocks 50a, 50b, 50c, and 50d, and the bottom plates 32a, 32b, 32c, and 32d. Through-holes 26a, 26b, 26c, 26d and through-holes 28a, 28b, 28c, 28d drilled at corners where the vertical walls 52a, 52b, 52c, 52d and the bottom plates 32a, 32b, 32c, 32d are joined The retaining wall blocks 50a, 50b, 50c, and 50d are connected to each other, and both end portions of the connecting member 22 are fixed to the retaining wall blocks 50a, 50b, 50c, and 50d by the vertical walls 52a, 52b, and 52c. , 52d, bottom plates 32a, 32b, 32c, 32d, and vertical walls 52a, 52b, 52c, 52d, and bottom plates 32a, 32b, 32c, 32d after being fixed to corners where the bottom plates 32a, 32b, 32c, 32d are joined. Concrete 38 is placed by arranging rebars 36 rearward from the rear end face To do. In this way, the retaining wall is constructed using the retaining wall blocks 50a, 50b, 50c, and 50d.

As described above, according to the construction method of the retaining wall blocks 50a, 50b, 50c, 50d of the present embodiment, the lateral ribs 54a, 54b, 54c, 54d are provided at the upper ends of the vertical walls 52a, 52b, 52c, 52d, Since holes 59a, 59b, 59c, 59d to which the support 47 of the guard fence 46 can be fixed are formed on the upper surfaces of the ribs 54a, 54b, 54c, 54d, the retaining wall blocks 50a, 50b, 50c, 50d When building the retaining wall and providing the protective fence 46, the protective fence 46 can be easily provided at a lower cost than when the protective fence 46 is provided by fixing the support 47 of the protective fence 46 to another member. And can be inserted into the holes 59a, 59b, 59c, 59d formed in the upper surface of the lateral ribs 54a, 54b, 54c, 54d formed in the retaining wall blocks 50a, 50b, 50c, 50d. In order to fix 46, the guard fence 46 can be firmly fixed.

In addition, this invention is not limited to the said embodiment, A various deformation | transformation implementation is possible within the range of the summary of this invention.

It is a perspective view which shows the retaining wall block in 1st Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view which shows the retaining wall block in 2nd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 2nd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 2nd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 2nd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 2nd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the other retaining wall block in 2nd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the other retaining wall block in 2nd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the other retaining wall block in 2nd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the other retaining wall block in 2nd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view which shows the corner | angular part of the retaining wall constructed | assembled using the retaining wall block in 2nd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view which shows the retaining wall block in 3rd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 3rd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 3rd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 3rd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 3rd Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view which shows the retaining wall block in 4th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 4th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 4th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 4th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 4th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the other retaining wall block in 4th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the other retaining wall block in 4th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the other retaining wall block in 4th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the other retaining wall block in 4th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view which shows the retaining wall block in 5th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 5th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 5th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 5th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the retaining wall block in 5th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the other retaining wall block in 5th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the other retaining wall block in 5th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the other retaining wall block in 5th Embodiment of the retaining wall block which concerns on this invention, and its construction method. It is a perspective view for demonstrating the construction method of the other retaining wall block in 5th Embodiment of the retaining wall block which concerns on this invention, and its construction method.

Explanation of symbols

10a, 10b, 10c, 10d Retaining wall block
20a, 20b, 20c, 20d Retaining wall block
30a, 30b, 30c, 30d Retaining wall block
40a, 40b, 40c, 40d Retaining wall block
50a, 50b, 50c, 50d Retaining wall block
11a, 11b, 11c, 11d vertical wall
42a, 42b, 42c, 42d Vertical wall
52a, 52b, 52c, 52d Vertical wall
12a, 12b, 12c, 12d Bottom plate
32a, 32b, 32c, 32d Bottom plate
13a, 13b, 13c, 13d Lateral rib
54a, 54b, 54c, 54d Lateral rib
22 connecting members
24a, 24b, 24c, 24d Through hole (insertion hole)
26a, 26b, 26c, 26d Through hole (insertion hole)
28a, 28b, 28c, 28d Through hole (insertion hole)
55a, 55b, 55c, 55d Through hole (insertion hole)
34a, 34b, 34c, 34d rebar
36 Rebar
38 concrete
43a, 43b, 43c, 43d Vertical rib
44a, 45a vertical rib
44b Vertical rib
48a, 48b, 48c, 48d hole
59a, 59b, 59c, 59d hole
46 Guard fence
47 Prop W Predetermined distance

Claims (6)

In a retaining wall block having a vertical wall extending in a direction perpendicular to the surface of the foundation, and a bottom plate extending in a horizontal direction in contact with the surface of the foundation from a lower end portion of the back surface of the vertical wall,
The back and the upper surface of the bottom plate of the vertical wall, the horizontal ribs are formed extending in the horizontal direction, inside the vicinity of the transverse ribs on the rear of the vertical wall, inside the vicinity of the transverse ribs on the upper surface of the bottom plate and The retaining wall block is characterized in that an insertion hole through which a connecting member that connects the retaining wall blocks can be inserted is formed inside a corner portion where the vertical wall and the bottom plate are joined . The retaining wall block according to claim 1, wherein the horizontal rib on the back surface of the vertical wall is formed at a predetermined distance from the upper end of the vertical wall. A retaining wall block having a vertical wall extending in a direction perpendicular to the surface of the foundation, and a bottom plate extending in a horizontal direction in contact with the surface of the foundation from a lower end of a back surface of the vertical wall. In construction method of retaining wall block to construct wall,
The retaining wall block of claim 1, wherein side surfaces on the foundation is placed side by side so as to face, characterized in that the coupling member constructing the inserted linked to retaining wall into the insertion hole retaining Wall block construction method. 4. The method for constructing a retaining wall block according to claim 3, wherein the connecting member is a PC steel material and is connected by introducing a tension force to the PC steel material. A retaining wall block having a vertical wall extending in a direction perpendicular to the surface of the foundation, and a bottom plate extending in a horizontal direction in contact with the surface of the foundation from a lower end of a back surface of the vertical wall. In construction method of retaining wall block to construct wall,
The retaining wall block according to claim 1 , wherein reinforcing bars are protruded from the rear end surface and embedded in the front-rear direction on the bottom plate, arranged side by side so as to face each other on the foundation, and from the rear end surface of the bottom plate Retaining wall block construction method characterized by arranging reinforcing bars behind and placing concrete to construct a retaining wall. A retaining wall block having a vertical wall extending in a direction perpendicular to the surface of the foundation, and a bottom plate extending in a horizontal direction in contact with the surface of the foundation from a lower end of a back surface of the vertical wall. In construction method of retaining wall block to construct wall,
A vertical rib extending downward from the upper end portion is formed on the rear surface of the vertical wall, and a hole is formed in the vicinity of the upper surface of the vertical rib to fix the guard fence post. The horizontal rib on the back surface of the vertical wall is formed at an upper end portion of the vertical wall, and an upper surface of the horizontal rib on the back surface of the vertical wall is provided with a hole capable of fixing a support fence post. The retaining wall block according to claim 1 , wherein the retaining wall blocks are arranged side by side so as to face each other on the foundation, and the retaining wall is constructed by inserting and fixing the support fence post into the hole. Retaining wall block construction method.

Images