JP3603300B2 - Stacking Block and Suction Prevention Structure for Stacking Block - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pile block used for a slope or the like and a suction prevention structure for the pile block.
[0002]
[Problems to be solved by the invention]
2. Description of the Related Art Conventionally, a retaining wall and a protective wall for slope protection have been constructed with a concrete building block. For example, a substantially rectangular concrete unit is used in the building block disclosed in Japanese Utility Model Laid-Open No. 60-87242. The block face is filled with a plurality of block units by engaging the four sides of this block unit with the sides of another block unit. On the other hand, Japanese Patent Laid-Open Publication No. 7-82721 discloses a method of protecting a slope by connecting concrete blocks in a matrix block formed by connecting concrete blocks vertically and horizontally at intervals. There is.
[0003]
Since the above-mentioned pile block covered the whole slope without a gap, it was not good for ecosystems, such as poor water permeability and air permeability. On the other hand, in the above-described matrix block, a gap can be provided between concrete blocks, but unlike the pile block, it cannot be applied to a slope where back earth pressure is generated. In addition, since the stacking blocks are superimposed on each other while aligning each block unit, it is difficult to shorten the installation work, and it takes time for construction.
[0004]
By the way, in the case of providing a gap between concrete blocks like the matrix block, it is necessary to prevent the suction of earth and sand from the back side of the block. For example, in Japanese Patent Application Laid-Open No. 5-156620, a flexible jointing material is disposed on a block to prevent earth and sand from being sucked out, and the jointing material is obtained by injecting and solidifying concrete into a mold. It describes that the base end of the material is embedded in the block (No. 0017) and attached, and bolted to the wall surface (Step 0021). However, the joint material closes the joint, and is different from a material that secures air permeability and water permeability at the joint. In addition, in the method of mounting using bolts, after the block is installed on the site, the joint material is The work of mounting the becomes complicated, and there is a problem that the workability is poor.
[0005]
Therefore, an object of the present invention is to provide a stacking block which is favorable for an ecosystem and has excellent workability and a structure for preventing suction from the stacking block.
[0006]
[Means for Solving the Problems]
The stacking block according to claim 1, wherein, in the stacking block used on a slope, concrete blocks that are vertically stacked are arranged side by side in a horizontal direction, and a gap that communicates back and forth between the adjacent blocks is provided. The blocks are connected by connecting members, the connecting members are exposed in the gaps between the blocks, and the left and right side surfaces of the blocks are formed so as to become narrower toward the rear, The upper and lower sides are provided with substantially horizontal upper and lower superimposed surfaces which can be superimposed on each other .
[0007]
According to the configuration of the first aspect, since a plurality of blocks are connected by a connecting material, if one stacking block is installed, a plurality of blocks can be stably installed at one time. In the stacked blocks arranged in a row, a gap without concrete is formed between adjacent blocks alone, so that a retaining wall excellent in ecosystem compatibility can be obtained. Then, for example, plants can grow in the gaps, and the gaps provide the retaining wall with air permeability and water permeability.
[0008]
According to a second aspect of the present invention, in the stacking block, the blocks are connected by one connecting member, and an anchor fixed to the connecting member is buried in the center of the block in the left-right direction .
[0009]
According to the configuration of the second aspect, by connecting the concrete blocks alone by using one connecting member and the anchor, the connection can be surely integrated.
[0010]
According to a third aspect of the present invention, in the stacking block, an end of the connecting member protrudes from a side surface of the block at the end.
[0011]
According to the configuration of the third aspect, the connecting members of the adjacent stacking blocks are connected and integrated.
[0012]
According to a fourth aspect of the present invention, the stacking block has substantially vertical grooves formed on the left and right sides of the block alone, and insertion edges inserted into the grooves on both sides of the suction prevention member provided in the gap. .
[0013]
According to the configuration of the fourth aspect , the suction prevention member can be easily provided in the gap by inserting the suction prevention member between the grooves at the site.
[0014]
The suction prevention structure for a stacking block according to claim 5, wherein the concrete blocks that are vertically stacked are arranged side by side in a horizontal direction, and the suction prevention member for a stacking block is provided with a suction prevention member in a gap between the adjacent blocks. The block includes substantially vertical grooves formed on the left and right sides of the block unit, and insertion edges provided on both left and right sides of the suction prevention member to slide into the grooves.
[0015]
According to the configuration of the fifth aspect , at the site, by inserting the suction prevention member between the grooves, the suction prevention member can be easily provided in the gap, and the suction prevention member provided in the gap can be provided on the rear side of the block. Can be prevented from being sucked out from the body.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. FIGS. 1 to 12 show a first embodiment of the present invention. As shown in FIG. The single bodies 2 are arranged side by side in the horizontal direction, and the plurality of single blocks 2 are connected by one connecting member 3 made of a reinforcing bar or the like. As the connecting material 3, it is particularly preferable to use a corrosion-resistant material such as an aluminized steel wire or a hot-dip galvanized steel bar. The reference front surface 4 of the block unit 2 is substantially square, and a pseudo stone pattern portion 5 is formed on the front surface of the reference front surface 4. The pseudo stone pattern portion 5 has a shape imitating natural stone, for example, natural cobblestone or Such as a split stone pattern. Upper and lower superimposing surfaces 6 and 7 are provided on the upper and lower sides of the block unit 2 so as to be superimposable on each other. A lateral engaging groove 9 is formed over the entire width of the lower overlapping surface 7 in the width direction. Further, the space between the left and right side surfaces 10 and 10 of the block unit 2 is formed so as to be slightly narrower toward the rear, and the space between the left and right side surfaces 10 and 10 is vertically shifted from the center line 10S and 10S in the vertical direction. Are formed to be slightly narrower. In addition, concave portions 11 and 11 are formed in the upper left and right corners of the holding portion of the block unit 2, and a concave portion 12 is formed in the lower rear center. The connecting member 3 is disposed along the rear of the reference front surface 4, and a larger anchor 13 is provided on the connecting member 3 at the center of each block 2 in the left-right direction. On the front side of the side surface 10, a vertical groove 14 is formed. A gap 15 is provided between adjacent blocks 2 and 2. The stacking blocks 1 are stacked in a plurality of stages, but in the block unit 2 of the first-stage stacking block 1, the lower overlapping surface 7 is formed obliquely in accordance with a foundation described later.
[0017]
As shown in FIG. 4, the suction prevention member 16 is provided with insertion edges 18 and 18 for sliding insertion into the grooves 14 on both sides of the mesh body 17, and the mesh body 17 is made of a corrosion resistant material such as a plastic mesh or a stainless steel mesh. In this example, the net 17 is sandwiched between the plate pieces 19 and 19 from the front and rear. The mesh body 17 has a plurality of wire portions 17A in a lattice shape and has a plurality of water passage holes 17B. By using the net 17 in this way, some deformation is possible.
[0018]
Next, a method of constructing a retaining wall using the building block 1 will be described with reference to FIGS. 7 to 12. As shown in a block installation step of FIG. A suction prevention member 22 is provided as a filter, and as the suction prevention member 22, a palm mat, a sand mat, a felt, or the like can be used. A concrete base 23 is provided below the retaining wall, and an obliquely inclined receiving surface 24 facing the slope 21 is formed on the upper surface of the base 23. The stacking block 1 for the first stage is superimposed on the inclined receiving surface 24, and at this time, the installation is performed using the hanging metal fittings 25 for construction. The hanging bracket 25 includes a main body 26 along the upper surface and the rear surface of the stacking block 1, and a rear support portion 27 that engages with the concave portion 12 at a lower portion of the main body 26, and a front support portion at a front side of the main body 26. A hanging support portion 28A such as a hook that engages with the connecting member 3 is provided at the lower end of the front support portion 28. Then, it is installed on the inclined receiving surface 24 by the hanging metal fitting 25, and a support 29 is provided between the rear surface of the block unit 1 and the slope 21 to support it. After completion of the first-stage installation supported by the support 29, the backfill material 30 is filled between the block 2 and the slope 21 as shown in the backfill material filling step of FIG. When the stacking block 1 is stabilized by filling the backfill material 30, the support 29 is removed. In this example, high quality soil 30A and crushed stone 30B are used as the backfill material 30. On the other hand, as shown in the block connecting step of FIG. 9, the stacking blocks 1, 1... Are arranged on the receiving surface 24 of the foundation 23 with a gap 15M therebetween, and the size of the gap 15M is substantially equal to the gap 15. Somewhat wide. The end 3T of the connecting member 3 protrudes from the side surface 10 of the block unit 2 at the end, and the ends 3T, 3T of the adjacent stacked blocks 1, 1 are attached directly or as shown in FIG. Welding is performed by the streaks 31, thereby connecting and integrating the connecting members 3, 3 of the adjacent stacking blocks 1. Further, as shown in the attachment step of the suction preventing member in FIG. 10, a suction preventing member 16 is set in the gap 15 between the blocks 2 and 2, and in this case, the insertion edges 18 on both sides are inserted into the adjacent grooves 14 and 14. , 18 and slide-insert from above to set the suction prevention member 16 in the gap 15. In the gap 15M, the suction prevention member 16 is slid and inserted into the gap 15M after the block connecting step. After the step of mounting the suction prevention member 16 is completed, the gap material 15, 32M and the concave portion 11 behind the suction prevention member 16 are filled with the packing material 32 as a filling step of the packing material in FIG. It is to be noted that, for the body material 32, on-site residual soil generated at the time of forming the slope 21 can be used. Then, the second-stage stacking block 1 is installed on top of the first-stage stacking block 1, and the second-stage stacking block 1 is also constructed by the same process as that of the first-stage stacking block 1. The projections 8 of the upper and lower blocks 2, 2 are engaged with the engagement grooves 9, and the lower superposition surface 7 of the second block 2 is superimposed on the horizontal upper superimposition surface 6. Therefore, it is not necessary to use the support 29 in the second and subsequent stages. In this way, the upper stacking blocks 1, 1... Are superimposed on the lower stacking blocks 1, 1. Further, as shown in FIG. 5, in the upper and lower stacking blocks 1 and 1, the gaps 15 are alternately arranged, that is, the upper block units 2 are stacked with the lower gap 15 as a center. In FIG. 5, the suction prevention member 16 is not shown for explanation.
[0019]
In FIG. 5, an adjustment block unit 2T is disposed on the right side of the first and third stages, and on the left side of the second and fourth stages. Some have a left-right width of five times, and are used at the left and right ends of the retaining wall. In addition, in FIG. 5 and FIGS. 13 and 15 to be described later, adjacent stacked blocks 1 are alternately shown in cross section for the sake of explanation. In FIG. 5, the first stage and the third stage show, from the left side, two stacked blocks 1 each composed of four block units 2, 2, 2, and 2, and on the right side, the block unit 2 And the stacking block 1 consisting of the adjustment block 2T is arranged. On the second and fourth stages, two stacking blocks 1 each consisting of the four blocks 2, 2, 2, 2 are arranged from the right side. , A stacking block 1 composed of a block 2 and an adjustment block 2T is arranged on the left side.
[0020]
As described above, in the present embodiment, the concrete blocks 2 to be vertically stacked are arranged side by side in the lateral direction in the stack block used for the slope , and A gap 15 communicating the front and rear of the block 1 is provided, and the blocks 2 and 2 are connected to each other by the connecting member 3. The connecting member 3 is exposed in the gap 15 between the blocks 2 and 2, and the left and right side surfaces of the block 2 are provided. 10, 10 between is formed to be narrower toward the rear, on the upper and lower blocks alone 2 substantially horizontal possible superimposed to each other, in which the lower overlapping surfaces 6, 7 are provided Since there is a plurality of blocks 2 connected by the connecting member 3, if one stacking block 1 is installed, a plurality of blocks 2 can be installed stably at once, and the blocks 2 are lined up at each stage. Smell in block 1 Since a gap 15 without concrete is formed between the adjacent blocks 2 and 2, a retaining wall excellent in compatibility with an ecosystem can be obtained. Then, for example, plants can grow in the gap 15, and the gap 15 provides the retaining wall with air permeability and water permeability. In the underwater part, the gap 15 becomes a fish nest . Also, since the gap 15 of the block itself 2,2 it is exposed connecting member 3, engages the lifting lugs 25 on the connecting member 3, the lifting work in the field can be easily performed.
[0021]
As described above, according to the present embodiment, the blocks 2 and 2 are connected by one connecting member 3 and the anchor 13 fixed to the connecting member 3 is moved in the left-right direction of the block 2 . Since the concrete block 2 is connected using the single connecting member 3 and the anchor 13 because it is buried in the center , it is possible to easily manufacture the stacking block 1 while ensuring this connection. it can.
[0022]
Further, in this embodiment, the end 3T of the connecting member 3 protrudes from the side surface 10 of the block unit 2 at the end . The connecting members 3, 3 can be connected and integrated.
[0023]
Further, in the present embodiment in this manner, corresponding to claim 4, to form a substantially vertical groove 14, 14 on the left and right sides of the block alone 2, grooves on both sides of the suction preventing member 16 provided in the gap 15 Since the insertion edges 18, 18 to be inserted into the 14, 14 are formed, the suction prevention member 16 can be easily provided in the gap 15 by inserting the suction prevention member 16 between the grooves 14, 14 at the site.
[0024]
Thus, in this embodiment, corresponding to claim 5, arranged side by side concrete block alone 2 superimposing the vertical laterally a suction preventing member 16 in the gap 15 between the block itself 2,2 neighboring In the suction prevention structure for a stacked block to be provided, a substantially vertical groove 14 formed on the left and right sides of the block unit 2 and an insertion edge 18 provided on both sides in the left and right direction of the suction prevention member 16 and slidably inserted into the grooves 14. Therefore, at the site, by inserting the suction preventing member 16 between the grooves 14, 14, the suction preventing member 16 can be easily provided in the gap 15, and the suction preventing member 16 provided in the gap 15 It is possible to prevent the body material 32 from being sucked out from the rear side of the block.
[0025]
Then, in the stacking block 1 of the present invention, the gaps 15 and 15M between the adjacent blocks 2 and 2 become deep ground, which is suitable for an ecosystem, and insects and the like can live there. Further, the gaps 15 and 15M enable the construction to be performed in a place with much spring water, and the retaining wall constructed by the stacking block 1 has water permeability. Further, soil easily accumulates in the gaps 15 and 15M, and plants easily inhabit the gaps 15 and 15M. Further, by providing the pseudo-stone pattern portion 5 on the front surface of the block unit 2, a retaining wall suitable for a natural landscape can be obtained. Furthermore, since the upper and lower overlapping surfaces 6 and 7 of the block unit 2 are substantially horizontal and the stacking block 1 is self-supporting, the workability is excellent. It is economical in terms of cost because it is possible to use surplus soil generated on site at times . Also, the engaging groove 9 formed in the width direction entire length of the mating surface 7 overlapping the lower, by the projections 8 to be inserted into the engaging grooves 9, can be position adjustment in the horizontal direction of the stacked blocks 1,1 of the upper and lower It is.
[0026]
13 and 14 show a second embodiment of the present invention, in which the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. This is an example of construction, showing a state of an inner curve in which a retaining wall is depressed inward, and the connecting member 3 in the gap 15 is slightly bent. By doing so, it is possible to cope with an inner curve. 13 does not show the suction prevention member 16 for the sake of explanation, and FIG. 14 is a plan view of the first and third steps of the retaining wall. Further, in the block 1, the lower engagement groove 9 is formed over the entire length in the left-right width direction of the block 1, the projection 8 is partially formed at the center, and there is a clearance between the engagement groove 9 and the projection 8. , The upper and lower stacking blocks 1, 1 can be stacked. In such an inner curved and oblique retaining wall, the left-right interval gradually increases as going to the upper stage. However, as shown in FIG. 13, the gap 15M is made wider as going to the upper stage. It becomes possible to cope with a diagonal retaining wall with an inner curve.
[0027]
FIGS. 15 and 16 show a third embodiment of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. It is an example of construction, showing a state of an outer curve in which the retaining wall is convex outward, by slightly bending the connecting member 3 in the gap 15 and also slightly bending the connecting portion in the gap 15M. , Can also respond to outside curves. In FIG. 15, the suction prevention member 16 is not shown for the sake of explanation, and FIG. 16 is a plan view of the first and third steps of the retaining wall. In the second and third embodiments, a side view appears as in FIG. And in such an outer curved and diagonal retaining wall, the left-right interval gradually narrows toward the upper stage, but as shown in FIG. 15, by making the gap 15M on the lower stage wider than that on the upper stage, Such an outer curve makes it possible to cope with an oblique retaining wall.
[0028]
Note that the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, the shape and the number of individual blocks in the stacking block are not limited to those in the above-described embodiment, and can be appropriately selected. Further, it is not always necessary to provide the pseudo stone pattern portion on the block alone. Further, in the embodiment, the construction by empty stacking in which the crushed portion or the like is filled in the body portion and the backfill portion has been described. By using kneading to fill the part with concrete, it is possible to cope with earth pressure. Further, in the embodiment, the example in which the connecting members of the stacking blocks are connected by welding is shown. However, the connecting members are not limited to welding, and may be connected by connecting metal fittings or fasteners. Furthermore, the suction prevention member is not limited to a mesh body as long as it has a plurality of water holes, and for example, a hole formed in a thin plate may be used.
[0029]
【The invention's effect】
The stacking block according to claim 1, wherein, in the stacking block used on a slope, concrete blocks that are vertically stacked are arranged side by side in a horizontal direction, and a gap that communicates back and forth between the adjacent blocks is provided. The blocks are connected by connecting members, the connecting members are exposed in the gaps between the blocks, and the left and right side surfaces of the blocks are formed so as to become narrower toward the rear, The upper and lower surfaces are provided with mutually superimposable and substantially horizontal upper and lower superimposed surfaces, so that it is possible to provide a building block which is excellent in ecosystem and excellent in workability.
[0030]
The stacking block according to claim 2, wherein the block unit is connected by one connecting member, and an anchor fixed to the connecting member is buried in the center of the block unit in the left-right direction , which is favorable for ecosystem, A stack block excellent in workability can be provided.
[0031]
Further, in the stacking block according to claim 3, the end of the connecting material protrudes from a side surface of the block alone at the end, and provides a stacking block that is good for ecosystem and excellent in workability. be able to.
[0032]
According to a fourth aspect of the present invention, in the stacking block, substantially vertical grooves are formed on the left and right sides of the block, and insertion edges are formed on both sides of the suction preventing member provided in the gap. Thus, it is possible to provide a building block that is good for the ecosystem and excellent in workability.
[0033]
The suction prevention structure for a stacking block according to claim 5, wherein the concrete blocks that are vertically stacked are arranged side by side in a horizontal direction, and the suction prevention member for a stacking block is provided with a suction prevention member in a gap between the adjacent blocks. A substantially vertical groove formed on the left and right sides of the block unit, and an insertion edge provided on both left and right sides of the suction prevention member and slidingly inserted into the groove, which is good for ecosystem, It is possible to provide a construction block suction prevention structure excellent in workability.
[Brief description of the drawings]
FIG. 1 is a front view of a stacking block showing a first embodiment of the present invention.
FIG. 2 is a plan view of a stacking block showing the first embodiment of the present invention.
FIG. 3 is a side view of a block alone showing the first embodiment of the present invention.
FIG. 4 is a perspective view of a suction prevention member according to the first embodiment of the present invention.
FIG. 5 is a front view of a cross section of a part of the retaining wall showing the first embodiment of the present invention, in which a connecting portion of a connecting member is enlarged and displayed.
FIG. 6 is a side view of the retaining wall showing the first embodiment of the present invention.
FIG. 7 is a side view of a block installation process according to the first embodiment of the present invention.
FIG. 8 is a sectional view of a backfill material filling step according to the first embodiment of the present invention.
FIG. 9 is a front view of a block connecting step according to the first embodiment of the present invention, in which a connecting portion of a connecting member is enlarged and displayed.
10 (A) is a front view, and FIG. 10 (B) is a cross-sectional view, showing a mounting process of the suction prevention member according to the first embodiment of the present invention.
FIG. 11 is a cross-sectional view illustrating a filling process of the body material according to the first embodiment of the present invention.
FIG. 12 is a cross-sectional view illustrating a state in which second-stage stacked blocks according to the first embodiment of the present invention are stacked.
FIG. 13 is a front view of a cross section of a part of a retaining wall showing a second embodiment of the present invention, in which a connecting portion of a connecting member is enlarged and displayed.
FIG. 14 is a plan view showing a second embodiment of the present invention.
FIG. 15 is a front view of a cross section of a part of a retaining wall showing a third embodiment of the present invention, in which a connecting portion of a connecting member is enlarged and displayed.
FIG. 16 is a plan view showing a third embodiment of the present invention.
[Explanation of symbols]
1 Stacking block 2 Single block 3 Connecting material
3T end
6 Upper overlapping surface
7 Lower overlapping surface
10 sides
13 anchor
14 grooves
15 gap
16 Suction prevention member
18 Insert edge

Claims (5)

In the building blocks used for the slopes, concrete blocks that are stacked one on top of the other are arranged side by side in the horizontal direction, a gap is provided between adjacent blocks that communicates back and forth, and the blocks are connected by a connecting material. The connecting member is exposed in the gap between the block units, and the left and right side surfaces of the block unit are formed so as to become narrower toward the rear. A stacking block characterized by a possible and substantially horizontal upper and lower overlapping surface . 2. The stacking block according to claim 1, wherein the blocks are connected by one connecting member, and an anchor fixed to the connecting member is embedded in a center of the block in the left-right direction . 3. The stacking block according to claim 1, wherein an end of the connecting member protrudes from a side surface of the block at the end. 4. A substantially vertical groove is formed on the left and right sides of the block unit, and insertion edges to be inserted into the groove are formed on both sides of the suction prevention member provided in the gap . The stacking block according to claim 1 . In a stack block suction prevention structure in which concrete blocks, which are vertically stacked, are juxtaposed in the horizontal direction and a suction prevention member is provided in a gap between adjacent blocks, in the suction prevention structure for a stacked block, substantially A suction prevention structure for a building block, comprising: a vertical groove; and insertion edges provided on both left and right sides of the suction prevention member to slide into the groove.

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