JP5122080B2 - Civil engineering structure - Google Patents

Description

The present invention relates to civil engineering construction.

  In the civil engineering structure, as shown in Patent Document 1, a net-like holding material is laid on the slope, and massive members (stone blocks) are piled up substantially parallel to the slope in front of the holding material. There has been proposed a structure in which a lump member and a holding material are connected via a connection fitting that can be expanded and contracted, and a backfill material is filled between each lump member and the holding material. According to this, even if the size of the massive member is different, the front surface of each accumulated massive member can be made a fixed distance from the clasp by adjusting the expansion and contraction of the connecting bracket, and is constituted by each massive member. The front surface of the retaining wall can be formed in the same plane.

JP 2003-206519 A

  However, in the civil engineering structure as described above, since the front surface of each stacked member is set to a certain distance from the holding material, the protruding amount on the back side (substantially spherical shape) of each massive member is individually different. Therefore, each protrusion amount cannot be grasped in advance because it is an on-site construction, and the filling amount of the backfilling material may be significantly different from the plan. Even if the substantially spherical back surfaces of each stacked member are aligned, the substantially spherical shape, curvature, etc. on the back side of each massive member vary, and the back side of the stacked member is A gap space having various sizes is formed between the adjacent massive members. For this reason, it is difficult to accurately grasp the actual volume of the backfilling material filling space between the bulk member and the holding member (slope) to be stacked, and even if the backfilling material is charged, The backfill material may enter (fill) or may not enter (fill), and the amount of backfill material to be filled in the backfill material filling space may not be as planned.

This invention is made | formed in view of such a situation, The technical subject is to provide the civil engineering structure which can make the filling amount of backfilling material as much as possible.

In order to achieve the above technical problem , the present invention (the invention according to claim 1)
A lump member is stacked at a front side position of the upright support wall in a state of being separated from the support wall to form a stacked wall, and each lump member of the stacked wall and the support wall are connected via an anchor. In a civil engineering structure that is connected and filled with backfilling stone as a backfilling material between the stacked wall and the support wall,
The back surface of each massive member is formed into a flat surface,
The stacked walls are configured to form a flat continuous surface with the back surface of each block member. With this configuration, on the back side of the stacked wall, the formation of a gap space between each of the massive members adjacent to each other in the vertical direction is reduced based on the difference in the shape and curvature of the back side of each massive member. It is possible to suppress fluctuation of the filling amount of the backfilling stone depending on the presence or absence of the backfilling stone as the backfilling material into each gap space.

As a preferred aspect of the present invention (the invention according to claim 1), the flat continuous surface is set to be along the wall surface of the support wall (invention 2). With this configuration, the volume of the backfilling material filling space that is actually filled with the backfilling material using a fixed interval between the support wall and the backside of the bulky member, the scheduled height of the bulky member, the construction section length, etc. Can be obtained easily, and the expected filling amount close to the actual filling amount of the backfilling material can be easily grasped. In addition, the continuous surface formed by the back surface of each block member and the wall surface of the support wall are parallel to each other, so that the backfill material can be filled (filled) into the backfill material filling space sequentially and accurately.
Further, since the distance between the support wall and the back surface of the massive member is a constant interval, the extension length of the anchor can be made constant. For this reason, it becomes unnecessary to adjust the extension length of the anchor, or the anchor can be aligned with a constant extension length, so that the workability can be greatly improved.

  As a preferred aspect of the present invention (the invention according to claim 1), the length of each anchor in the extension direction is constant (claim 3). With this configuration, the space between the back surface and the support wall of each block member is fixed by simply connecting each block member and the support wall via the anchor, and by using the anchor, continuous along the support wall. The surface can be easily formed.

  In a preferred aspect of the present invention (the invention according to claim 1), the size and shape of each of the massive members are constant, and the length from the support wall to the front surface of each of the massive members is substantially constant. (Claim 4). By this structure, the wall surface of the stacked wall comprised by each block-shaped member can be formed in substantially the same plane shape, and the wall surface of the said civil engineering structure can be made suitable.

ADVANTAGE OF THE INVENTION According to this invention (invention which concerns on Claim 1), the civil engineering structure which can make the filling amount of the backfilling stone as backfilling material as much as possible can be provided .

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, the code | symbol 1 shows the revetment (civil engineering structure) which concerns on embodiment. The revetment 1 is provided with an installation surface 2 at its lower part. The installation surface 2 extends horizontally by a certain distance toward the land inward side (right side in FIG. 1), and maintains a certain distance while maintaining a relatively large longitudinal gradient (for example, 5) of the river 3. %) In the flow direction of the river 3 (extension direction of the revetment 1: the direction perpendicular to the paper surface in FIG. 1, the left-right direction in FIG. 2). An inclined base (such as earth and sand) 4 is disposed at the end of the installation surface 2 on the land inward side, and the inclined base 4 faces the land inward as the surface of the inclined base 4 extends upward. It is inclined to face (for example, gradient 1: 0.5). On the entire surface of the installation surface 2 and the inclined base 4, a suction preventing material 5 is laid over the entire surface, and a wire mesh or mesh (hereinafter referred to as a wire mesh) 6 as a net-like body is formed on the entire suction preventing material 5. The suction preventing member 5 and the wire mesh 6 are fixed to the installation surface 2 and the inclined base 4 using fasteners (not shown). In this embodiment, the inclination base | substrate 4, the suction | inhalation prevention material 5, and the metal-mesh 6 comprise a support wall.

  As shown in FIGS. 1 and 2, a concrete foundation 7 is installed on the installation surface 2 in a state of being separated from the inclined base 4. The foundation 7 is extended over the entire construction section in the direction along the flow of the river 3, and the foundation 7 crosses the foundation 7 on the installation surface 2 at both ends in the extending direction of the foundation 7. Side walls 8a and 8b are arranged. The base 7 is formed with a restricting portion 9 and a stepped portion 10 as a concave portion at an upper portion thereof. The restricting portion 9 is formed by projecting the front upper portion of the foundation 7 higher than the other portions, and this restricting portion 9 exhibits a function of restricting the movement of the pseudo stone 12 described later to the front side. It is supposed to be. The step portion 10 is formed in a step shape on the rear side of the restricting portion 9 along with the formation of the restricting portion 9, and the inside of the step portion 10 is opened toward the wire mesh 6 (inclined base 4). The upper and lower thicknesses of the restricting portion 9 and the stepped portion 10 in the foundation 7 are constant, and the upper surface 9 a of the restricting portion 9 and the stepped surface 10 a of the stepped portion 10 that form the upper surface of the foundation 7 are the gradients of the installation surface 2. Is set so as to increase from one end side (left side in FIG. 2) to the other end side (right side in FIG. 2).

  On the foundation 7, as shown in FIG. 1, construction materials 11 for civil engineering structures (hereinafter referred to as construction materials) 11 are sequentially stacked in order to form a revetment 1. As each construction material 11, a material composed of a pseudo stone 12 as a block member forming a surface material and an anchor 13 attached to the pseudo stone 12 is used. Among them, the pseudo stone 12 of the construction material 11 is formed in a predetermined shape resembling a slightly long cobblestone as a whole using ordinary Portland cement, blast furnace cement concrete, or the like, as shown in FIGS. ing. Specifically, the back surface 14 of the pseudo stone 12 is formed into a flat surface, and the front surface 15 side is formed in a substantially spherical shape while maintaining a long and narrow shape. A chamfered surface 16 whose outer diameter is slightly reduced from the side toward the back surface 14 side is formed in a band shape. A hole 17 is formed in the back surface 14 of the pseudo stone 12, and an insert nut 18 is held in the hole.

  As shown in FIGS. 1 and 3 to 5, the anchor 13 is formed of a wire rod having a constant extension length (for example, around 500 mm). A male screw portion 19 is formed at one end portion of the anchor 13, and a curled portion (connecting portion) 20 wound in a curl shape is formed at the other end portion. The male thread portion 19 at one end of the anchor 13 is screwed (attached) to the insert nut 18 in the pseudo stone 12, and the other end side extends away from the back surface 14 of the pseudo stone 12.

  As shown in FIG. 1, the pseudo stone 12 of the construction material 11 is sequentially formed on the stepped surface 10 a of the foundation 7 with a certain gradient (corresponding to the gradient of the inclined base 4 surface) to form a stacked wall 21 of the revetment 1. Are piled up. Each stacked pseudo stone 12 (stacked wall 21) has a flat continuous surface 22 formed by connecting back surfaces 14 forming the flat surface, and the continuous surface 22 is formed from the wire mesh 6 (the surface of the inclined base 4). It extends in parallel along the wire mesh 6 at a position spaced forward by a predetermined interval (for example, around 540 mm). For this reason, as is clear from FIG. 6 which shows a conceptual diagram of the stacked state of the pseudo stones 12, each pseudo stone 12 of the stacked wall 21 has a substantially spherical protruding portion protruding in the back surface 14 side (in FIG. 6, The arc portion of the imaginary line) 23 is eliminated, and various gap spaces 24 formed between the protruding portions 23 of the pseudo stone 12 adjacent to the upper and lower sides thereof are reduced. Moreover, in this embodiment, the space | interval between the front surface 15 of each stacked pseudo stone 12 and the wire net 6 is set to a predetermined distance, and the front surface 15 of the stacked wall 21 has a cobblestone-like wall surface that is substantially flush. Forming.

  Further, as shown in FIG. 2, the pseudo stone 12 of the construction material 11 forms a multi-stage pseudo stone row 12 </ b> A (multi-stage block member row) that is stacked up and down with the formation of the stacked wall 21. . The pseudo stone rows 12A of each step are arranged adjacent to each other over the entire extending direction of the foundation 7 (between the side walls 8a and 8b). In the pseudo stone row 12A of each step, A recess 25 is formed based on the shape of both pseudo stones 12. Among the plurality of pseudo stone rows 12A, in the first pseudo stone row 12A-1, which is the lowest step, the lower portion of each pseudo stone 12 is placed on the step surface 10a in the foundation 7, and each pseudo stone 12 The upper portion protrudes upward from the restricting portion 9. The lower part of each pseudo stone 12 of this first stage pseudo stone row 12A-1 is fixed to a base body 26 that incorporates and integrates the foundation 7 (see FIG. 1). The base body 26 is formed by filling the concrete 27 between the foundation 7 and the inclined base 4 up to the upper surface of the restriction portion 9 including the inside of the stepped portion 10 in the foundation 7 and curing it. The lower part of each pseudo stone 12 of the first stage pseudo stone row 12A-1 is firmly fixed to the base body 26.

  As shown in FIG. 2, among the multiple-stage pseudo-stone rows 12A, the second-stage pseudo-stone row 12A-2 is located between the adjacent pseudo-stones 12 of the first-stage pseudo-stone row 12A-1. It is arranged as follows. The lower part of each pseudo stone 12 in the second stage enters the recess 25 between the adjacent pseudo stones 12 adjacent to the first stage fixed to the base body 6, and engages with these pseudo stones 12. Each of the pseudo stones 12 is restricted from moving in the arrangement direction of the pseudo stones 12, in particular, to one end side in the extending direction of the foundation 7. For this reason, the acting force of the second stage pseudo stone row 12A-2 on the side wall 8a arranged on one end side in the extending direction of the foundation 7 is to be greatly reduced. A similar stacking method is applied to the pseudo stone row 12A after the third step, and the pseudo stones 12 of each step enter the recess 5 between the adjacent pseudo stones 12 in the lower step and the movement is restricted. Thus, the acting force of the pseudo stone rows on the side wall 8a is also reduced. In the present embodiment, as shown in FIG. 2, the elongated pseudo stone 12 is arranged so that the longitudinal direction thereof faces the extending direction of the foundation 7, but as shown in FIG. 7, the elongated pseudo stone 12 extends long. You may arrange so that a part may stand. As a result, a deep recess 25 is formed between the adjacent pseudo stones 12 of each step, and the upper step pseudo stone 12 can be inserted into the deep recess 25. In the pseudo stone row 12A of each step, The restriction of movement of each pseudo stone 12 toward the side wall 8a can be enhanced. For this reason, the acting force of the pseudo stone row 12A of each step on the side wall 8a can be further reduced.

  On the other hand, as shown in FIG. 1, the anchor 13 of each construction material 11 is positioned closer to the wire mesh 6 (inclined base 4) than the pseudo stone 12 in the stacked state of the pseudo stone 12. The anchor 13 is bent in the vicinity of the flat back surface 14 of the pseudo stone 12 so as to extend substantially horizontally regardless of the stacking gradient of the pseudo stone 12, and the curled portion 20 at the other end of the anchor 13 is connected to the wire mesh 6. They are connected via a shackle 28. As a result, the anchor 13 prevents the pseudo stone 12 from dropping off to the front side, and keeps the distance from the wire mesh 6 to the flat back surface 14 and front surface 15 of the pseudo stone 12 constant.

  As shown in FIG. 1, a backfill material filling space 29 is formed between the stacked wall 21 and the inclined base 4 (suction prevention material 5, wire mesh 6). The backfill material filling space 29 is filled with a backfill material (for example, crushed stone, cracked stone, block, etc.) 30 to form a backfill material layer 31, and the backfill material (crushed stone, etc.) 30 is Meshing with each other. For this reason, the backfill material layer 31 leans against the inclined base 4 (the metal mesh 6 and the suction prevention material 5) as an integrated heavy object, and the metal mesh 6 and the suction prevention material 5 are firmly attached to the inclined base 4 by the action. It is pressed.

  As shown in FIGS. 1 and 2, a top end concrete layer 32 is provided at the top end portion of the revetment 1. The top end concrete layer 32 embeds and holds the back surface 14 side of the uppermost pseudo stone 12 row and its respective anchors 13 and secures the top end surface (upper surface) 33. The top end surface 33 is adjusted to have a desired angle θ with respect to the horizontal plane by adjusting the thickness of the top end concrete layer 32 regardless of the inclination of the pseudo stone row 12A of each step.

Such a revetment 1 is constructed (constructed) as follows.
First, as shown in FIG. 8, the installation surface 2 and the inclined base 4 are formed, and then the foundation 7 and the side walls 8a and 8b are formed on the installation surface 2, and the installation surface 2 and the inclined base 4 are prevented from sucking out. The material 5 and the wire mesh 6 are laid in order. In this case, regarding the formation of the installation surface 2, the surface 2 is extended in the extending direction of the revetment 1 to be constructed according to the longitudinal gradient of the river 3 while maintaining the overhanging length from the inclined base 4 at a constant distance. Is inclined so as to continuously increase from one side (left side in FIG. 2) to the other side (right side in FIG. 2). Regarding the formation of the foundation 7, the upper surfaces 9a and 10a thereof are continuously inclined corresponding to the inclination of the installation surface 2, and the gradient is maintained substantially constant. Regarding the formation of the side walls 8a and 8b, the side walls 8a and 8b are formed in a state of being connected to one end side and the other end side in the extending direction of the foundation 7, but the interval between the side walls 8a and 8b (the length in the extending direction of the foundation 7) is In this embodiment, the distance is about 20 m. Regarding the laying of the sucking prevention material 5 and the wire mesh 6, they are laid on the entire surface of the installation surface 2 and the inclined base 4, and these are fixed to the installation surface 2 and the inclined base 4 by fasteners (not shown).

  Next, a plurality of construction materials 11 are prepared, and the construction material row 11A-1 as the first stage is arranged as shown in FIG. When the construction material row 11A-1 at the first stage is arranged, the movement of the pseudo stone 12 is restricted by the lower side wall 8a (the side wall on one end side in the extending direction of the foundation 7), and the pseudo stone 12 is positioned on one end side in the extending direction of the foundation 7. Are arranged on the stepped surface of the foundation 7 in a state of being adjacent to each other sequentially from the other side (see FIG. 2), and the anchor 13 attached to the pseudo stone 12 each time the pseudo stone 12 of each construction material 11 is arranged. The curl portion 20 at the other end is connected to the wire mesh 6 through the shackle 28.

  When the pseudo stone 12 of the first-stage construction material row 11A-1 is arranged up to the upper side wall 8b (the side wall on the other side in the extending direction of the foundation 7), as shown in FIG. Concrete 27 is injected, and the pseudo stone 12 of the first-stage construction material row 11A-1 is fixed to the foundation 7. The moving force (rolling force, sliding force) of the second stage (and subsequent) construction material 11 is applied to the foundation 7 via the pseudo stone 12 of the first construction material row 11A-1 as much as possible, instead of the side wall 8a. This is to communicate. In this case, the concrete 27 is poured until the surface of the concrete 27 reaches the height of the upper surface 9a of the restricting portion 9 of the foundation 7, and the concrete 27 is also filled into the stepped portion 10. The integrated base body 26 is formed in a state where the lower part of each first-stage pseudo stone 12 is embedded therein, and each first-stage pseudo stone 12 is fixed to the base body 26 (base 7). become.

  When the pseudo stone 12 of the first-stage construction material row 11A-1 is fixed to the base body 26, as shown in FIG. 11, the second-stage construction material 11A-2 is placed on the first-stage construction material row 11A-1. Deploy. At this time, each pseudo stone 12 of the second stage construction material row 11A-2 is arranged so as to enter the recess 25 between the first stage adjacent pseudo stones 12, and the second stage construction material row 11A-2. The pseudo stone 12 is engaged with the pseudo stone 12 of the first-stage construction material row 11A-1, and is restricted from rolling or sliding to one end side in the extending direction of the foundation 7. This is because the acting force of the pseudo stone 12 of the second-stage construction material row 11A-2 is not allowed to act on the side wall 8a as much as possible. When arranging the second-stage construction material row 11A-2, basically, as in the case of the arrangement of the first-stage construction material 11A-2, the base material 7 is sequentially arranged from one end side in the extending direction and the lower side. The side wall 8a preferably receives the moving load of the pseudo stone 12; however, in the arrangement of the second stage construction material 11, the recess 25 between the adjacent pseudo stones 12 in the first stage can be used. The pseudo stone 12 can be arranged not only in the installation order but also from an appropriate position or at an appropriate position.

  Also, in the arrangement of the second construction material row 11A-2, the anchor 13 attached to the pseudo stone 12 is connected to the wire net 6 as shown in FIG. This is to prevent the pseudo stone 12 from dropping off to the front side. Further, the anchor 13 has an extension direction length that is the same as the extension direction length of the anchor 13 of the first-stage construction material row 11A-1, and based on this, each second-stage construction material 11A-2. When the pseudo stones 12 are arranged between the adjacent pseudo stones 12 in the first stage, the flat back surfaces 14 of the pseudo stones 12 in the first and second stages form a flat continuous surface 22. At this time, the chamfered surface 16 of the first-stage pseudo stone 12 serves as a supporting surface, and the chamfered surface 16 of the second-stage pseudo stone 12 serves as a supported surface, so that the pseudo stone 12 can be easily stacked. become.

  When the arrangement of the second-stage construction material row 11A-2 is finished, as shown in FIG. 12, between the stacked wall 21 formed by the first-stage and second-stage pseudo stones 12 and the wire mesh 6 (inclined base 4). Backing material (crushed stone, cracked stone, etc.) 30 is put in This is because the backfill material layer 31 is sequentially expanded to thereby firmly press the wire mesh 6 and the like to which the anchor 13 is connected to the inclined base 4. At this time, the backfilling material 30 is filled up to the height of the upper portion of the second-stage pseudo stone 12, and the anchors 13 of the first-stage and second-stage construction materials 11A-1 and 11A-2 are used as the backfilling material. Embedded in layer 31. This is because the anchor 13 and the backfill material 30 are engaged to prevent the pseudo stones 12 of each step from moving in the juxtaposition direction more reliably.

  When the arrangement of the construction material row 11A-2 at the second stage is finished, the construction material rows 11A after the third stage are arranged in the same manner. Then, concrete is poured between the stacked wall 21 and the wire mesh 6 into the uppermost construction material row 11A, and the top concrete layer 32 is formed from the concrete as shown in FIGS. This is because the top end surface 33 is formed and the angle θ of the top end surface 33 is adjusted by adjusting the thickness of the top end concrete layer 32. Thereby, the said revetment 1 will be constructed | assembled and construction will be complete | finished. In addition, as shown in FIG. 1, the front lower part of the revetment 1 is backfilled.

  Therefore, in such a revetment 1, since the back surface 14 of each pseudo stone 12 is formed into a flat surface on the back side of the stacked wall 21, a flat continuous surface 22 is formed. The formation of gap spaces 24 (see FIG. 6) is reduced, and fluctuations in the filling amount of the backfill material 30 due to the presence or absence of the backfill material 30 entering each gap space 24 can be suppressed. become. For this reason, the filling amount of the backfill material 30 can be made as planned as possible.

  Moreover, in this revetment 1, the thing of equal extension length is used as the anchor 13 of each construction material 11, and the continuous surface 22 and the wire mesh 6 are made into the fixed space | interval, and both 22 and 6 are parallel. Based on this relationship, the backfilling material 30 can be filled (filled) into the backfilling material filling space 29 sequentially and accurately. Of course, at this time, since the anchor 13 having the same extension length is used as the anchor 13 of each construction material 11, adjustment of the extension length of the anchor 13 becomes unnecessary, and the workability is greatly improved.

  Furthermore, in this revetment 1, even if there is a longitudinal gradient, the step surface 10a of the foundation 7 is a continuous surface in which the gradient is maintained. If it is not necessary, it can be constructed in substantially the same manner, and as the foundation 7, a work specific to forming a step foundation can be eliminated. On the other hand, the first stage pseudo stone row 12A-1 is arranged on the step surface 10a of the foundation 7 with each pseudo stone 12 fixed to the foundation 7, and the second and subsequent pseudo stone rows 12A are arranged in the respective pseudo stones. 12 is arranged in a state in which it enters the recess 25 between the adjacent pseudo stones 12 in the lower step, so that the step surface 10a of the foundation 7 is a continuous surface in which the gradient is maintained as described above. Based on the gradient of the continuous surface, the action force (force to move) of the second and subsequent pseudo stone rows 12A tries to act toward the side wall 8a on one end side in the extending direction of the foundation. Most of the acting force is transmitted to the foundation 7 via the first-stage pseudo stone row 12A-1, and the force acting on the side wall 8a is greatly reduced. In addition, in this case, the stacking of the pseudo stones 12 in the second and subsequent pseudo stone rows 12A can be performed without rolling.

Although the embodiment has been described above, the present invention includes the following aspects.
(1) The other end portion of the anchor 13 is not connected to the wire mesh 6, and a resistance member such as a stopper panel is provided on the other end portion of the anchor 13, and the resistance member and the backfill material 30 are engaged.
(2) The construction material 11 is made of only pseudo stones without the anchor 13 and is piled up using backfilled concrete or trunked concrete.
(3) As the foundation 7, use what embedded the lower part of each pseudo stone 12 of the first stage pseudo stone row.
(4) The recesses of the foundation 7 are not limited to those whose back side is opened (step surface 10a), and those whose back side is not opened on the top surface of the foundation 7 are used. In this case, in the extending direction of the foundation 7, it may be continuously formed in a groove shape, or may be formed so as to individually receive the lower part of each pseudo stone 12 of the first stage pseudo stone array. In particular, regarding the latter, even if the upper surface of the foundation 7 is a continuous surface where the gradient is maintained, the pseudo stone 12 can be placed on the upper surface of the foundation 7 without rolling, and workability can be improved. Of course, you may form further the recessed part which receives the lower part of each pseudo stone 12 of the 1st stage pseudo stone row | line | column in the level | step difference surface 10a of the level | step-difference part 10 as a recess.
(5) As a method of fixing each pseudo stone 12 in the first stage to the foundation 7, a hole is formed in each pseudo stone 12 in advance, while reinforcing bars and the like are protruded from the upper surface of the foundation 7 corresponding to each pseudo stone, The rebars and the like and the holes of each pseudo stone 12 should be fitted. Of course, in this case, conversely, each reinforcing bar or the like may be implanted in each pseudo stone 12 and each hole may be formed on the upper surface of the foundation 7.

The longitudinal cross-sectional view explaining the revetment which concerns on embodiment. Explanatory drawing explaining the front state of the revetment which concerns on embodiment. The top view which shows the construction material which concerns on embodiment. FIG. 4 is a front view of FIG. 3. FIG. 4 is a left side view of FIG. 3. Explanatory drawing which illustrates the piled-up state of a pseudo stone conceptually. Explanatory drawing explaining the front state of the revetment which concerns on a modification. Explanatory drawing explaining the construction method of the revetment which concerns on embodiment. Explanatory drawing explaining the process following FIG. Explanatory drawing explaining the process of following FIG. Explanatory drawing explaining the process following FIG. Explanatory drawing explaining the process following FIG.

DESCRIPTION OF SYMBOLS 1 Revetment 4 Inclined base 5 Suction prevention material 6 Wire net 11 Construction material 12 Pseudo stone (block member)
13 Anchor 14 Back surface 16 Chamfered surface 21 Stacked wall 22 Continuous surface 30 Backfill material

Claims (4)

A lump member is stacked at a front side position of the upright support wall in a state of being separated from the support wall to form a stacked wall, and each lump member of the stacked wall and the support wall are connected via an anchor. In a civil engineering structure that is connected and filled with backfilling stone as a backfilling material between the stacked wall and the support wall,
The back surface of each massive member is formed into a flat surface,
The stacked walls are set to form a flat continuous surface with the back of each block member;
Civil engineering structure characterized by that. In claim 1,
The flat continuous surface is set along the wall surface of the support wall,
Civil engineering structure characterized by that. In claim 2,
The length of each anchor in the extending direction is constant,
Civil engineering structure characterized by that. In claim 1,
The size and shape of each massive member is constant, and the length from the support wall to the front surface of each massive member is substantially constant.
Civil engineering structure characterized by that.

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