JP6746264B1 - Slope stabilization retaining wall and its construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To construct a retaining wall by arranging retaining wall panels in a horizontal direction along a slope or the like while facing each other, and to install the retaining wall panels toward the lower stage side. It is possible to install the retaining wall panel while supporting the upper retaining wall panel. SOLUTION: The marking-out block is arranged at the uppermost part of the slope 10 so that the axial direction is along the top of the slope 10, and the fixing tool 23 is embedded in the ground and fixed to the slope 10. 2 and a retaining wall panel 3 to which a reinforcing member 4 which is arranged below the summoning block 2 and which is embedded in the ground penetrates, and a head protruding from the slope 10 of the reinforcing member 4 is fixed. And a convex portion 21 having a convex surface side is formed on the lower side of the front surface side of the marking-out block 2, and the convex portion 21 of the marking-out block 2 on the upper side of the rear surface side of the retaining wall panel 3 is formed. A concave portion 31 having a concave rear surface is formed at a corresponding position, and the convex portion 32 of the retaining wall panel 3 is engaged with the convex portion 21 of the marking block 2 downward. [Selection diagram] Figure 1

Description

For the purpose of stabilizing the slope, the present invention is a slope stabilizing retaining wall constructed on a slope by arranging retaining wall panels, for example, in a horizontal direction along the slope while facing (adjacent) each other, and It is about the construction method.

When a retaining wall is constructed by arranging retaining wall panels along the slope for the purpose of stabilizing the slope formed by excavation (cutting) in the ground, the level of the lower end of the slope is determined. If so, the retaining wall panel can be installed from the bottom side to the top side. In this case, since the upper retaining wall panel can be supported by the installed lower retaining wall panel (Patent Document 1), as in the case where the upper retaining wall panel is installed first, It is not necessary to take any measures to support the upper retaining wall panel in.

On the other hand, if the level of the top of the ground is fixed, the retaining wall panels will be installed from the upper side to the lower side, so the uppermost retaining wall that is first installed on the slope. The panel is installed on the slope while being supported by the ground. In this relationship, since the retaining wall panel is installed from the uppermost side toward the lower stage side, when installing the retaining wall panel of a certain step on the slope, positioning accuracy at the time of installation may be required, The retaining wall panel needs to be supported on the slope alone.

If the retaining wall panel located on the upper tier side does not have the ability to support the retaining wall panel located on the lower tier side, the retaining wall panel will only be supported by the natural ground where the lower end is located. The ground is excavated while leaving the ground where the lower end of the wall panel is located and forming a support surface such as a horizontal surface on the ground (see Patent Documents 2 to 6).

For example, if the upper retaining wall panel and the lower retaining wall panel that are vertically adjacent to each other are joined together, it is not impossible to support the lower retaining wall panel on the upper retaining wall panel. However, since there is no main body that supports the retaining wall panel at the time of installing the uppermost retaining wall panel, it is essential to form the supporting surface.

JP-A-6-101241 (claim 1, paragraphs 0010 to 0012, FIGS. 1 to 3) JP-A-7-34464 (claim 1, paragraphs 0005 to 0018, FIGS. 6 to 8) JP, 2010-106433, A (paragraph 0020, Drawings 4-8). JP 2012-246706 A (claim 1, paragraphs 0012 to 0016, FIGS. 2 to 5) JP, 2014-109189, A (claim 1, paragraph 0005, 0006, Drawing 1, Drawing 2). JP-A-2015-1084 (FIGS. 1 to 5) JP-A-6-57756 (paragraphs 0009 to 0018, FIGS. 8 and 10)

In the method of installing the retaining wall panel from the upper side to the lower side, the retaining wall panel installed on the slope is mainly supported by the supporting surface of the ground, so accuracy is required to form the supporting surface. To be done. If there is an error in the formation of the support surface, a construction error will be left in the installation of the retaining wall panel, and it will be difficult to arrange the retaining wall panels arranged in the width direction of the retaining wall panel in an orderly manner.

In view of the above background, the present invention provides a method of installing a retaining wall panel toward the lower stage side, wherein the retaining wall panel can be installed while the lower retaining wall panel is supported by the upper retaining wall panel. We propose a surface stabilizing retaining wall and its construction method.

The slope stabilizing retaining wall of the invention according to claim 1 is arranged at the uppermost part of the slope with the axial direction oriented along the top of the slope, and protruding from the rear side to the natural ground side. The marking block in which the tool is embedded in the ground and fixed to the slope, and the reinforcing material which is arranged below the marking block and buried in the ground penetrates, and from the slope of the reinforcing material. With a retaining wall panel to which the protruding head is fixed,
The lower side of the front surface side of the marking block formed convex portion surface side is a convex Rutotomoni, concave relative surface becomes concave on the convex portion is formed, the retaining wall panel On the upper side of the back side of the, at the position corresponding to the convex portion of the marking block, a concave portion having a concave rear surface is formed, a convex portion having a convex rear surface is formed on the concave portion,
The back side of the upper side of the retaining wall panel is combined to face the front side of the marking block, the convex portion of the retaining wall panel engages the convex portion of the marking block downward .
At the connection position of the fixing tool in the marking-out block, a plurality of through-holes through which the fixing tool penetrates the marking-out block in the thickness direction are formed at intervals in the axial direction of the marking-out block. It is a constituent feature that a vertical groove is formed on the concave side of the through hole so that the fixing tool is locked to the slope side .

The “direction along the top of the slope” is the length direction when the retaining wall panels 3 are arranged in the length direction as shown in FIGS. 8 and 9, and is mainly the horizontal direction, but the horizontal direction. There may be a direction inclined with respect to. The "top of the slope" basically refers to a corner portion on the vertical cross section of the uppermost part of the slope shown in Fig. 1-(a). The length direction of the retaining wall panel 3 (the direction along the top of the slope) is the axial direction of the marking block 2. The marking block 2 is arranged on the slope 10 with its axis oriented in the horizontal direction or the like. The width direction of the retaining wall panel 3 is the height direction along the slope 10.

The fixing block (anchor) 23 protruding from the back side of the blacking-out block 2 is fixed to the slope 10 by being buried in the ground. The fixing tool 23 penetrates the marking block 2 in the thickness direction . Fixing device 23 (after fixing to slope face 10 of the marking block 2) ultimately be integrated into the marking block 2. The fixing tool 23 is embedded in the ground and fixed to fix the marking-out block 2 to the ground. The fixing state of the fixing tool 23 in the ground may be simply inserted (penetrated) into the ground and maintained, or may be embedded and maintained in the filler injected into the ground.

The axial direction of the marking-out block 2 is also the length direction of the marking-out block 2, and the marking-out block 2 itself has a shape longer in the axial direction than the width direction and the thickness direction, that is, a block shape or a rod shape. The width direction of the marking block 2 is the height direction of the slope 10 or the height direction along the slope of the slope 10. A plurality of the marking-out blocks 2 may be arranged in the axial direction so as to face each other (while being in contact with each other) (claim 3 ), and the retaining wall panels 3 are also arranged so as to face each other in the lengthwise direction (while being in contact with each other). In some cases, the retaining wall 1 (stabilization of the slope) is made up of at least one marking block 2 and one retaining wall panel 3 supported by the marking block 2.

The front surface side of the marking-out block 2 and the retaining wall panel 3 is the side that becomes the surface when installed on the slope, and the rear surface side indicates the slope 10 side. The “convex portion having a convex surface side” of the marking-out block 2 means that the convex portion 21 projects to the front surface side, and the “recess portion having a concave rear surface side” of the retaining wall panel 3 is seen from the rear surface side. It sometimes means that the concave portion 31 is concave than the other portions.

In the claim 1, "a convex portion having a convex surface side is formed on the lower side of the front surface side of the marking-out block" means that, when the marking-out block 2 is viewed from the front surface side, it is on the lower side in the installed state. The formation of the convex portion 21 means that the concave portion 22 having a relatively concave surface side is formed on the convex portion 21. Since the concave portion 31 (upper side) of the retaining wall panel 3 is formed at a position corresponding to the convex portion 21 of the marking block 2, the convex portion 32 (upper side) of the retaining wall panel 3 of the marking block 2 is formed. It is formed at a position corresponding to the recess 22.

The retaining wall panel 3 is stacked (combined) on the marking block 2 with the concave portion 31 and the convex portion 32 facing the convex portion 21 and the concave portion 22 of the marking block 2 in the thickness direction, respectively. When the retaining wall panel 3 overlaps the marking block 2, the convex portion 32 of the retaining wall panel 3 engages with the convex portion 21 of the marking block 2 downward, and basically the retaining wall panel 3 marks. Supported by block 2. When the retaining wall panel 3 overlaps the marking block 2, the convex portion 32 is fitted in the concave portion 22 and the convex portion 21 is fitted in the concave portion 31 in the thickness direction of the retaining wall panel 3, or close to fitting. It becomes a state.

When the convex portion 32 (on the upper side) of the retaining wall panel 3 is engaged with the convex portion 21 of the marking-out block 2 downward and the retaining wall panel 3 is supported by the marking-out block 2, the weight of the retaining wall panel 3 is reduced. Mainly acts near the center (centroid) on the vertical cross section of the retaining wall panel 3. As long as the slope 10 is inclined with respect to the vertical plane, the point of action of the own weight of the retaining wall panel 3 is located closer to the surface side of the slope 10 than the convex portion 32 serving as the fulcrum of the retaining wall panel 3, Around the circumference, a moment due to the own weight of the retaining wall panel 3 acts on the slope 10 from the back surface of the retaining wall panel 3 according to the horizontal distance between the fulcrum and the point of action of its own weight. The component of this moment perpendicular to the slope 10 exerts pressure on the slope 10, and thus acts to increase the frictional force generated between the rear surface of the retaining wall panel 3 and the slope 10.

When the convex portion 32 of the retaining wall panel 3 is engaged with the convex portion 21 of the marking-out block 2 downward, the convex portion 21 of the marking-out block 2 is fitted into the concave portion 31 on the upper side of the retaining wall panel 3 as described above. There are times when it is appropriate. In that case, the cross-sectional shapes of the convex portion 21 of the staking-out block 2 and the concave portion 31 on the upper side of the retaining wall panel 3 which are fitted to each other are arbitrary, but for example, curved surfaces, polyhedral shapes, or the like, which are in contact with each other in a surface. If it is formed in such a manner, it becomes easy to avoid the concentration of stress on the respective convex portions 21 and concave portions 31. Further, for example, if the convex portion 21 of the marking-out block 2 is a convex curved surface, the concave portion 31 of the retaining wall panel 3 is a concave curved surface, and the curves of the vertical cross sections of the convex portion 21 and the concave portion 31 are arc-shaped, the marking-out block Since the retaining wall panel 3 supported by 2 tends to rotate toward the slope 10 around the arc-shaped center of curvature, the pressure when the back surface of the retaining wall panel 3 contacts the slope 10 is increased. The effect is increased.

The back surface of the retaining wall panel 3 may be filled with a filling material (backfill material) 7 such as mortar for filling the voids formed between the back surface and the slope 10 and improving the adhesion effect. In that case, since the liquid stopping material (sealing material) 5 for partitioning the filling area of the filling material 7 is fixed to the back surface of the retaining wall panel 3 by attaching, embedding, etc. At the time of installation, a frictional force is generated between the liquid stopping material 5 and the slope 10. This frictional force serves to supplement the support by the marking-out block 2 when the retaining wall panel 3 is supported by the marking-out block 2.

When the retaining wall panel 3 is installed, since the retaining wall panel 3 itself basically supports the retaining wall panel 3, it is necessary to form a supporting surface such as a horizontal surface for supporting the retaining wall panel 3 on the ground in principle. Therefore, it is possible to suppress or avoid the occurrence of a construction error when the retaining wall panel 3 is supported on the supporting surface or only on the supporting surface. The supporting surface may support the retaining wall panel 3 supported by the marking-out block 2 or may be formed for safety in the case where the marking-out block 2 is not sufficiently fixed to the ground. ..

In addition, the marking block 2 is fixed to the uppermost part of the slope 10, and supports the retaining wall panel 3 installed below it, thereby positioning the retaining wall panel 3 when the retaining wall panel 3 is installed (a ruler Since the marking-out function is performed, if the fixing position of the marking-out block 2 with respect to the slope 10 is accurate, the retaining wall panel 3 is also accurately installed with respect to the slope 10.

The marking block 2 supports the retaining wall panel 3 when the retaining wall panel 3 is installed, but before the retaining wall 1 is completed, the reinforcing material 4 penetrating the retaining wall panel 3 in the thickness direction is grounded as described later. By being inserted into the mountain and embedded in the grout material, the state in which the retaining wall panel 3 is fixed to the slope 10 is permanently maintained (claim 4). For this reason, the marking block 2 is released from the support of the retaining wall panel 3 after the reinforcing material 4 is inserted and the grout material is filled. In other words, the marking-out block 2 temporarily (temporarily) supports the retaining wall panel 3 until the reinforcement material 4 is inserted and the grout material is filled. The reinforcing material 4 is inserted into the drilled hole 11 formed in the ground below the marking block 2, and the drilled hole 11 is filled with the grout material (claim 4). The reinforcing member 4 is inserted through an insertion hole 36 formed in the central portion on the vertical surface of the retaining wall panel 3 so as to penetrate in the thickness direction.

As described above, the retaining wall 1 can be formed by one marking block 2 and one retaining wall panel 3, but a plurality of marking blocks 2 are arranged in the direction along the top of the slope 10. In some cases, the plurality of retaining wall panels 3 are arranged so as to face each other (while being butted against each other) (while being butted against each other) (one step or more). It is also possible to arrange a plurality of retaining wall panels 3 in a plurality of stages while facing each other (while abutting) in the height direction along the slope 10 which is a direction intersecting with the direction along the top of the slope 10. There is (claim 2). The retaining wall panels 3 may be arranged in only one row in the height direction along the slope 10.

When a plurality of (multi-tiered) retaining wall panels 3 are arranged in the height direction along the slope 10, as shown in FIG. 2D, on the lower side of the front surface side of the retaining wall panel 3, (below A concave portion 37 having a concave surface side is formed at a position corresponding to the upper convex portion 32 of the retaining wall panel 3 (positioned on the (lower) side), and a convex portion having a convex surface side is formed under the concave portion 37. The part 38 is formed (claim 2). The rear side of the upper (upper) side of the retaining wall panel 3 located relatively on the lower side is combined so as to face the lower surface side of the retaining wall panel 3 adjacent to the upper side, and is relatively lower. The upper convex portion 32 of the retaining wall panel 3 located is engaged with the lower convex portion 38 of the retaining wall panel 3 adjacent to the upper side downward (claim 2), and the upper retaining wall panel 3 Supported by. When the convex portion 32 is engaged with the convex portion 38 downward, the convex portion 32 is fitted in the concave portion 37, and the convex portion 38 is fitted in the concave portion 31, or is in a state close to fitting.

In this case as well, the retaining wall panel 3 located on the lower side is directly supported by the retaining wall panel 3 located on the upper side, and indirectly supported by the marking-out block 2 located on the uppermost side. Although it is not always necessary to form a support surface for supporting the retaining wall panel 3 on the ground, a support surface may be formed for safety. In claim 2, as a result that the number of the retaining wall panels 3 arranged on the slope 10 (the number of steps) is plural, the load (mass) of all the retaining wall panels 3 arranged in the height direction is set to one marking block 2. Since the burden affects the stability of the marking block 2 in a fixed state, forming the support surface contributes to ensuring the stability of the marking block 2.

In addition, if the marking-out blocks 2 are arranged so as to face each other in the axial direction, and the retaining wall panel 3 located at the uppermost portion is supported across the two marking-out blocks 2 that are adjacent to each other in the axial direction ( (Claim 3) Since the load of one retaining wall panel 3 is distributed and borne by the two marking blocks 2, 2, the burden of one marking block 2 is reduced. Therefore, the stability of the staking-out block 2 in a fixed state is improved as compared with the case where one staking-out block 2 supports one retaining wall panel 3. When the retaining wall panel 3 is supported across the two marking blocks 2 and 2 (Claim 3), the retaining wall panel 3 is also stably supported, so that the displacement in the installed state, etc. Installation errors are also easily eliminated. "While facing each other" means that the stakeout blocks 2 and 2 (the end faces of which are adjacent to each other in the axial direction) are arranged while being abutted (contacting) with each other, and the distance between the end faces of the stakeout blocks 2 and 2. There is a case where they face each other while securing

When the marking-out blocks 2 and 2 are arranged so as to face each other in the axial direction, as shown in FIG. 16-(a), an auxiliary connecting member extending between the adjacent marking-out blocks 2 and 2 and both ends thereof. If 27 is installed and joined to both sides (claim 4), the stability of the marking blocks 2 and 2 in the adjacent state is further improved. In this case, since the auxiliary connecting material 27 straddles the ends of the adjacent marking-out blocks 2 and is joined to both, the integrity of the adjacent marking-out blocks 2 and 2 is ensured, so It becomes easy to hold the axes of the feeding blocks 2 and 2 in a straight line. FIG. 16-(a) shows the standard size marking-out block 2 shown in FIG. 10-(a) and a half (half) size marking-out block 2 of half its length. It is shown that they are connected in the direction.

Since the auxiliary connecting member 27 is bonded to both of the adjacent marking-out blocks 2 and 2 so as to be joined to each other, other than the surface of the retaining wall block 3 for receiving the concave portion 31 and the convex portion 32, as shown in FIGS. 13 and 12. For example, it has a joining piece (plate) 271 that overlaps the bottom surface (lower surface) of the marking-out block 2 and is joined. In this case, a female screw into which the bolt 8 for joining the joining piece 271 is screwed is formed on the bottom surface of the marking block 2. This female screw is formed by embedding the insert 25 in the marking block 2. In addition to this, the auxiliary connecting member 27 may have an abutment piece 272 that comes into surface contact with the slope 10 as shown in FIG. 13, and in that case, the abutment piece 272 makes contact with the slope 10 to cause black ink. It is possible to adjust the angle with respect to the slope 10 when the delivery block 2 is installed on the slope 10.

When the auxiliary connecting member 27 has the contact piece 272, the joining piece 271 overlapping the bottom surface of the marking block 2 is provided with an insertion hole 27 a for inserting a bolt in the shape of a long hole that is long in the direction perpendicular to the slope 10. .. Since the insertion hole 27a has a long hole shape, the auxiliary connecting member 27 can be moved relative to the marking block 2 in a direction perpendicular to the slope 10 or can be rotated around the connection position of the fixing tool 23. .. When the auxiliary connecting member 27 has the contact piece 272, the fixing tool 23 such as an anchor penetrating the contact piece 272 is fixed in the ground so that the fixing tool 23 protrudes from the back surface of the marking-out block 2. The fixing of the stake-out block 2 to the natural ground by the chisel is supplemented. In this case, the fixing piece 23 is inserted into the contact piece 272, and an insertion hole 27b for connection is formed.

When the fixing tool 23 is connected to the auxiliary connecting member 27, the auxiliary connecting member 27 joined (fixed) to the marking-out block 2 is also fixed to the ground so that the marking-out block 2 itself Since the fixing tool 23 connected to the fixing member 23 and the fixing tool 23 connected to the auxiliary connecting member 27 are supported by the natural ground, the stability of the marking block 2 in the fixed state on the natural ground is improved. ..

As shown in FIG. 13, when the marking-out block 2 and the ground are viewed in a vertical section, the fixing tool 23 connected to the marking-out block 2 and the fixing tool 23 connected to the auxiliary connecting member 27 are the same in the vertical section. If it is in the position, the marking block 2 is fixed to the ground in two places. As a result, the stability of the stake-out block 2 with respect to the load in the direction along the slope 10 and the stability with respect to the rotation due to the moment resulting from the load are improved, and the supporting capacity of the retaining wall panel 3 is increased, so that the retaining wall is increased. It is not necessary to form the above-mentioned supporting surface (horizontal surface) for supporting the panel 3 in the ground.

When the auxiliary connecting member 27 is used (Claim 4), the plurality of marking-out blocks 2 are installed in the slope 10 in a state in which the marking-out blocks 2 are connected in advance, so that the plurality of marking-out blocks 2 can be installed. The work period can be shortened by improving work efficiency. Similarly, as shown in FIG. 20, when a plurality of retaining wall panels 3 and 3 that are adjacent to each other in the length direction are connected in advance by using the connecting member 3E shown in FIG. 14, the plurality of retaining wall panels 3 are installed. The work period can be shortened by improving work efficiency.

The slope stabilization retaining wall 1 according to any one of claims 1 to 4, wherein the marking block 2 is provided on the top of the slope 10 by using a fixing tool 23 embedded in the ground. The process of fixing to the mountain,
Engaging the convex portion 32 on the upper side of the retaining wall panel 3 with the convex portion 21 of the marking-out block 2 to support the retaining wall panel 3 on the marking-out block 2;
A hole 11 for inserting a reinforcing member 4 penetrating the retaining wall panel 3 in the thickness direction into the ground is formed in the ground below the marking block 2, and the hole 11 is formed in the hole 11. The reinforcing material 4 is inserted, and the hole 11 is filled with grout material.

As described above, the marking-out block 2 is basically fixed to the slope 10 by fixing and fixing the fixing tool 23 protruding from the back side of the marking-out block 2 in the ground. The retaining wall panel 3 is (temporarily) supported by the marking-out block 2 by engaging the convex portion 32 on the upper side with the convex portion 21 of the marking-out block 2 downward. An insertion hole 35 that penetrates the retaining wall panel 3 in the thickness direction is formed at a central portion or the like when the retaining wall panel 3 is viewed in the thickness direction (as a plate). The insertion holes 35 do not necessarily have to be formed in all the retaining wall panels 3 that form the retaining wall 1 (stabilization of the slope). The reinforcing material (tensile material) 4 which is inserted into the ground and is fixed in the ground by filling with the grout material is inserted into the insertion hole 35.

Drill holes 11 are formed in the ground for the reinforcement material 4 to be inserted and for being filled with the grout material for embedding the reinforcement material 4 in the ground. The drilled hole 11 is formed continuously with the insertion hole 35 of the retaining wall panel 3. The reinforcing material 4 is inserted into the drilled hole 11 after the drilled hole 11 is formed, and the grout material is filled in the drilled hole 11 and fixed. The insertion of the reinforcing material 4 into the drilled hole 11 and the filling of the grout material may be performed before or after or in parallel. After the reinforcing material 4 is fixed by the grout material at the tip on the ground side, tension is applied to the inside of the insertion hole 35 of the retaining wall panel 3 or the head protruding from the insertion hole 35 to the surface side of the retaining wall panel 3. By doing so, the retaining wall panel 3 is pressed to the slope 10 side and brought into close contact with the slope 10, and at the same time a compressive force is applied from the slope 10 and the ground to the ground to stabilize the ground against collapse. ..

After the grout material is filled into the drilled hole 11, a step of additionally filling the grouted material into the drilled hole 11 and allowing it to penetrate into the ground, and a filling material (backfill material) 7 on the back side of the retaining wall panel 3 And a filling step may be included (Claim 6). The additional filling of grout material is carried out for the purpose of stabilizing the ground by infiltrating into the ground, and the filling material 7 is filled between the rear surface of the retaining wall panel 3 and the slope 10 in order to stabilize the ground. The work is performed for the purpose of filling in the voids and securing the stability of the retaining wall panel 3 in the installed state.

Since mortar and cement milk are mainly used as the grout material and the filling material 7 and they are common materials, the filling of the filling material 7 on the back surface of the retaining wall panel 3 is not always done by filling the drilling hole 11 with the grout material. It is not necessary to be independent of the above, and when the grout material is filled into the drilled hole 11, the grout material overflowing from the drilled hole 11 can be made to wrap around the back surface of the retaining wall panel 3 as the filler 7. In that case, the grout material overflowing from the drilled holes 11 is blocked by the liquid stopping material 5 mounted on the back surface of the retaining wall panel 3, so that the grout material is prevented from wrapping around to the surface side of the retaining wall panel 3.

A stakeout block fixed to the uppermost part of the slope and a retaining wall panel disposed below the stakeout block are provided, and the convex portion formed on the lower side on the front surface side of the stakeout block has a retaining wall panel By engaging the convex part formed on the upper side of the back side to the lower side, the retaining wall panel is supported by the stake-out block, so in principle a supporting surface for supporting the retaining wall panel on the ground is provided. There is no need to form. As a result, it is possible to suppress or avoid the occurrence of a construction error when the retaining wall panel is supported on the supporting surface or only on the supporting surface.

(A) is a vertical cross-sectional view showing how to excavate the ground and form a slope, (b) is a vertical cross-sectional view showing that the marking block is fixed to the uppermost part of the slope, (c) Is a vertical cross-sectional view showing how the uppermost retaining wall panel is installed while being supported by the marking block, and (d) is a cutting for inserting a reinforcing material for fixing the retaining wall panel to the ground into the ground. It is a longitudinal cross-sectional view showing a state in which a hole is formed and a reinforcing material is inserted. (A) is a vertical cross-sectional view showing a state in which a filler (backfilling material) is injected into the gap between the back surface and the slope of the retaining wall panel, and (b) is a reinforcing material protruding on the surface of the retaining wall panel. FIG. 6C is a vertical cross-sectional view showing how the head of the is fixed to the retaining wall panel, (c) is a state when forming a slope when the retaining wall panel is installed adjacent to the lower side of the uppermost retaining wall panel And (d) is a vertical cross-sectional view showing how the lower retaining wall panel is installed on the newly formed slope. (A) is a longitudinal cross-sectional view showing a state in which a reinforcing material for fixing the retaining wall panel on the lower stage side to the ground is formed and a reinforcing material is inserted, and the reinforcing material is inserted. A vertical cross-sectional view showing a state of injecting the filler into the back surface of the wall panel, (c) a vertical cross-sectional view showing a state of fixing the head of the reinforcing material to the retaining wall panel, and (d) of (c). It is a longitudinal cross-sectional view showing a state at the time of forming a slope in the case where the lowermost retaining wall panel is installed below the retaining wall panel. (A) is an elevation view of the front surface side (retaining wall panel side) showing a production example of a stake-out block arranged in an intermediate portion other than both sides in the direction along the top of the slope surface, and (b) is (A) is a cross-sectional view taken along the line xx, (c) is a front surface side (retaining wall) showing an example of manufacturing half-size marking-out blocks arranged on both sides in the direction along the top of the slope top. It is an elevation view of the panel side). 4A is a perspective view showing a front surface side of the marking-out block shown in FIG. 4A, and FIG. 4B is a perspective view showing a rear surface side (slope surface side) of the marking-out block shown in FIG. .. (A) is an elevational view showing a manufacturing example of a retaining wall panel, and the left side of the center line shows the front side and the right side shows the back side (slope side). (B) is the xx sectional view taken on the line of (a), (c) is a top view of (a). It is the perspective view which showed the front surface side of the retaining wall panel shown in FIG. (A) is a perspective view showing the front surface side of a retaining wall formed by arranging five stages of retaining wall panels in the height direction of the slope, and (b) is a perspective view showing the back side of (a). Is. (A) is an elevation view showing a state in which four retaining wall panels are arranged in the height direction of the slope and each retaining wall panel is fixed to the slope by a reinforcing material, (b) of (a) FIG. (A) is an elevation view of the front surface side (retaining wall panel side) showing a production example of a summing block in which an auxiliary connecting material is joined to the bottom surface, and (b) is a cross-sectional view taken along line xx of (a). FIG. 3C is an elevation view on the front surface side showing an example of manufacturing the half size sizing-out block of FIG. (A) is an elevational view showing an example of manufacturing a retaining wall panel combined with the marking block shown in FIG. 10, where the left side of the center line is the front side and the right side is the back side (slope side). There is. (B) is the xx sectional view taken on the line of (a), (c) is a top view of (a). 10A is an elevation view showing an example of manufacturing an auxiliary connecting member that is joined to the mark-out block shown in FIG. 10 and connects two mark-out blocks that are adjacent in the axial direction, and FIG. It is a side view. FIG. 13 is a vertical cross-sectional view showing a state in which the marking-out block shown in FIG. 10 is fixed to the ground using the auxiliary connecting material shown in FIG. 12 and the retaining wall panel 3 shown in FIG. 11 is supported by the marking-out block. (A) is a connecting member shown in FIG. 20 for connecting both retaining wall panels when the retaining wall panels are arranged adjacent to each other in the lengthwise direction, and are spanned between the lower end portions of the adjacent retaining wall panels. The elevation view shown is (b), which is a side view of (a). (A) is an elevation view showing an adjusting member shown in FIG. 20 for adjusting the position of the lower end of the retaining wall panel with respect to the slope or the angle with respect to the slope of the retaining wall panel, (b) of (a) It is a side view. FIG. 10A is an elevation view showing a state in which the mark-out block shown in FIG. 10 and the mark-out block having a half length thereof are connected using the auxiliary connecting member shown in FIG. 12 and suspended on the slope. (B) is a longitudinal sectional view showing a state in which the two marking blocks shown in (a) are installed and fixed on the top of the slope. (A) shows a manufacturing example of a retaining wall panel in which a liquid stopping material is attached to the lower end portion in the width direction of the retaining wall panel and one side surface portion in the length direction, and a joint material is attached to the other end surface. A rear view and (b) are side views of (a). 16A is a vertical cross-sectional view showing a state in which the uppermost retaining wall panel is supported by the marking block shown in FIG. 16B, and FIG. 15B shows the adjusting material shown in FIG. It is a longitudinal cross-sectional view showing a state of being joined to the lower end portion of the retaining wall panel. In (a), the suspending tool such as eyebolts is connected to the adjusting material joined to the lower end of the retaining wall panel, and the fixing tool is driven into the ground corresponding to the lower end of the retaining wall panel, and between the suspending tool and the fixing tool. FIG. 8B is a vertical cross-sectional view showing a situation in which the chain of the pulling device is installed and the distance of the chain is adjusted, and FIG. 9B is a vertical cross-sectional view showing a situation in which the adjustment of the chain distance is completed. (A) is an elevation view showing a state of the front surface side when four retaining wall panels arranged in the length direction are supported under five summing blocks connected by an auxiliary connecting member, (B) is an elevation view showing the four retaining wall panels shown in (a) in which a connecting member is laid across between two retaining wall panels adjacent to each other in the length direction and coupled. FIG. 20 is a vertical cross-sectional view showing how a filler is injected into the back surface side of the retaining wall panel shown in FIG. 19-(b). (A) is a longitudinal sectional view showing a state in which a reinforcing material for fixing the retaining wall panel to the ground is formed and a reinforcing material is inserted, and (b) is a retaining wall panel. FIG. 6 is a vertical cross-sectional view showing a state in which the head portion of the reinforcing material protruding on the surface is fixed to the retaining wall panel. (A) is a vertical cross-sectional view showing a state at the time of forming a slope for installing the retaining wall panel adjacent to the lower side of the uppermost retaining wall panel, and (b) is the slope formed in (a). It is a longitudinal cross-sectional view showing a state when the lower retaining wall panel is installed. (A) is an elevation view showing a state in which four retaining wall panels are arranged in the height direction of the slope and each retaining wall panel is fixed to the slope by a reinforcing material, (b) of (a) A rear view and (c) are longitudinal sectional views of (a). 24A is an elevation view showing a state in which four vertically adjacent retaining wall panels are arranged while shifting vertically adjacent retaining wall panels in FIG. 24-A, and FIG. And (c) is a longitudinal sectional view of (a).

In FIG. 1-(c), the fixing device 23 is disposed on the top of the slope 10 with the axial direction directed along the top of the slope 10, and the fixing tool 23 protruding from the back side to the ground side is buried in the ground. An example of the configuration of the minimum unit retaining wall 1 including the staking-out block 2 fixed to the slope 10 and the retaining panel 3 arranged below the staking-out block 2 is shown. The "direction along the top of the slope 10" basically means a horizontal direction along the slope 10 or a direction close to the horizontal direction, but the top of the slope 10 is not always horizontal, and therefore the horizontal direction. Including a direction inclined with respect to. Hereinafter, the direction perpendicular to the "direction along the top of the slope 10" is referred to as the height direction along the slope 10.

"Back side" refers to the natural side. Below, the side which becomes the surface of the retaining wall 1 in the installed (constructed) state of the retaining wall 1 is called the "surface side". Although the drawing shows that the retaining wall 1 is constructed on the slope 10 which is inclined with respect to the vertical plane, the slope 10 may be a vertical plane. In FIG. 1-(c), as shown in FIGS. 1-(a) to 3-(c) and (d), the retaining wall panels 3 are arranged in two steps or three steps in the height direction of the slope 10. It shows one step in the construction procedure in the case. Normally, a plurality of marking-out blocks 2 and a plurality of retaining wall panels 3 are arranged in the direction along the top of the slope 10, but only one marking-out block 2 and one retaining wall panel 3 are arranged. In some cases.

The length of one marking block 2 in the axial direction is basically equal to the length of one retaining wall panel 3 in the length direction (axial direction of the marking block 2), but it is not always necessary. For example, when one retaining wall panel 3 is supported across two or more marking-out blocks 2 as shown in FIG. 8-(b), both sides of "direction along the top of the slope 10" As shown in FIG. 4C, the length of the blacking-out block 2 arranged at is about 1/2 of the length of one retaining wall panel 3. FIG. 4-(c) shows the stake-out block 2 having a half or about half the length of the stake-out block 2 of the basic shape (basic (standard) size) shown in (a).

The stake-out block 2 serves as a reference for positioning at the time of installing one or more retaining wall panels 3 installed therebelow, and mainly has a role of temporarily supporting the retaining wall panel 3 immediately below. “Temporary support” means that the retaining wall panel 3 penetrates through the retaining wall panel 3 in the thickness direction, the reinforcing material 4 inserted into the natural ground is fixed in the natural ground, and the retaining wall panel 3 is the slope 10 (ground). It means supporting until it is fixed to the mountain. When the retaining wall panel 3 is installed, the marking block 2 may or may not be exposed on the surface side of the retaining wall 1 as shown in FIG.

As shown in FIGS. 1-(c), 4-(a), and (b), a retaining wall panel 3 having a convex surface side is provided on the lower side of the front surface side of the marking-out block 2. The convex portion 21 for temporarily receiving (temporarily supporting) at the time of installation is formed. The convex portion 21 is formed continuously or intermittently in the axial direction of the marking-out block 2. Since the marking-out block 2 is installed and fixed on the slope 10 prior to the retaining wall panel 3 which constitutes the retaining wall 1, the fixing tool (anchor) that is inserted into the ground from the back side of the marking-out block 2 is fixed. )23 is projected. FIG. 5-(a) shows a state in which the surface of the marking block 2 shown in FIG. 4-(a) is seen slightly obliquely from above, and FIG. 5-(b) shows the state in which the back surface is seen slightly obliquely from above.

By forming the convex portion 21 on the front surface side of the marking-out block 2, a concave portion 22 having a relatively concave front surface side is formed above the convex portion 21. On the vertical cross-section when the marking-out block 2 is viewed in the axial direction, the cross-sectional shapes of the convex portion 21 and the concave portion 22 are arbitrary, but the convex portion 32 of the retaining wall panel 3 described later is the convex portion 21 of the marking-out block 2. Such that the convex portion 32 fits into the concave portion 22 and the concave portion 31 of the retaining wall panel 3 fits into the convex portion 21 in the thickness direction of the retaining wall panel 3 when they are engaged downwardly with respect to each other. Formed into a shape.

The fixing tool 23 allows the fixing tool 23 to be driven into the ground from the front surface side of the marking-out block 2 after the marking-out block 2 is positioned with respect to the slope 10 while being suspended from the lifting machine 6 as described later. Has become . Specifically, as shown in FIGS. 4A and 5A, a through hole 24 that penetrates the marking block 2 in the thickness direction is formed at the connection position of the fixing tool 23. In this case, the fixing tool 23 is driven into the through hole 24 from the front surface side of the marking block 2 and inserted into the ground.

In the drawing, on the recess 22 side of the through hole 24 of the marking block 2, the fixing tool 23, like an anchor pin, has a fixing portion that is driven into the ground by penetrating the through hole 24 and is bent continuously to the fixing portion. When the marking-out block 2 has an L-shape having a locking portion for locking toward the slope 10, the locking portion is inserted and a vertical groove 26 for locking the marking-out block 2 is formed. In this case, the locking portion of the fixing tool 23 is locked to the vertical groove 26 toward the slope 10 (ground) as the fixing portion is driven into the ground, so that the marking block 2 is pressed against the slope 10. , It works to attach the back to the slope.

The vertical grooves 26 are formed at a plurality of positions at intervals in the axial direction of the marking-out block 2 so that the fixing tool 23 can uniformly restrain the marking surface 2 of the marking-out block 2 in the axial direction. The through hole 24 is formed in each vertical groove 26. The direction of the vertical groove 26 is not limited, but in the drawing, it is oriented in the width direction (height direction) of the marking block 2. As shown in FIG. 5( a ), the surface of the vertical groove 26, which is the concave portion 22 side, is open, but the convex portion 32 of the retaining wall panel 3 is formed in the concave portion 22 in the thickness direction of the retaining wall panel 3. Since they overlap (fit), the locking portion of the fixing tool 23 and the vertical groove 26 are closed by the retaining wall panel 3. Further, since the convex portion 32 of the retaining wall panel 3 is in close contact with the concave portion 22 of the marking-out block 2, the locking portion of the fixing tool 23 is constrained, so that the fixing tool 23 is stable against slipping out.

As shown in FIG. 1-(b), the insert 25 mainly includes a suspended object 2A such as an eyebolt that is suspended and supported by the lifting machine 6 when suspending the marking block 2 itself at a target position on the slope 10. It is embedded in the concrete of the main body of the summing block 2 for the purpose of connection. As shown in FIGS. 4 and 5, the insert 25 also includes a connecting tool such as a bolt 8 (hereinafter, referred to as a bolt) for connecting the retaining wall panel 3 installed on the front surface side of the marking block 2 so as to be overlapped as necessary. (8 etc.) is also buried in concrete for the purpose of connecting.

As shown in FIG. 4, the insert 25 for the hanging tool 2A is buried from the upper surface side of the concrete of the marking block 2, and the insert 25 for the connecting tool for connecting the retaining wall panel 3 is buried from the front surface side of the concrete. It The insert 25 for the to-be-hanged tool 2A is placed so that the marking-out block 2 is installed on the slope 10 while maintaining the inclined angle when the marking-out block 2 is suspended and supported by the lifting machine 6 in the to-be-held tool 2A. It is appropriate that the connecting position of the wire of the lifting machine 6 to the hanging tool 2A is embedded at a position passing through the centroid of the marking block 2.

As shown in FIG. 1-(c), at the position corresponding to the convex portion 21 of the marking-out block 2 on the upper side (closer to the upper side) of the rear surface of the retaining wall panel 3, a concave portion 31 having a concave rear surface side is formed. A convex portion 32 having a convex rear surface is formed on the concave portion 31. The concave portion 31 and the convex portion 32 are also formed continuously or intermittently in the length direction of the retaining wall panel 3.

The rear side of the retaining wall panel 3 on the upper side is opposed to and combined with the front side of the marking-out block 2, or is overlapped in the thickness direction. At this time, the convex portion 32 of the retaining wall panel 3 is engaged with the convex portion 21 of the marking-out block 2 downward, so that the retaining wall panel 3 is supported by the marking-out block 2. The convex portion 32 of the retaining wall panel 3 fits in the recess 22 of the marking block 2 in the thickness direction, and the convex portion 21 of the marking block 2 fits in the recess 31 of the retaining wall panel 3 in the thickness direction.

As shown in FIG. 1-(c), when the retaining wall panel 3 overlaps the marking-out block 2, the insert 25 for connecting the retaining wall panel 3 of the marking-out block 2 shown in FIG. At a corresponding position, as shown in FIG. 6-(a), a connecting hole 33 into which the bolt 8 or the like is inserted or screwed is formed from the front surface side of the retaining wall panel 3.

From the front surface side of the retaining wall panel 3, a suspended member 3A such as an eyebolt for suspending and supporting the retaining wall panel 3 itself is connected as shown in FIGS. 6-(a) and 2-(d). The insert 34 for embedding is embedded. The insert 34 for the to-be-held device 3A is also installed so that the retaining wall panel 3 is installed on the slope 10 with the inclined angle when the retaining wall panel 3 is suspended and supported by the lifting machine 6 in the to-be-held device 3A. It is suitable that the connecting position of the wire of the lifting machine 6 to the hanging tool 3A is buried at a position passing through the centroid of the retaining wall panel 3.

6-(a), (b) at one location in the center of the elevation when the retaining wall panel 3 is viewed from the front side or the back side, or at multiple locations near the center line in the width direction. As shown in FIG. 3, an insertion hole 35 is formed so that the reinforcing material 4 which is embedded and fixed in the natural ground penetrates the retaining wall panel 3 in the thickness direction. The head portion of the reinforcing member 4 protruding from the surface of the retaining wall panel 3 is fixed to the fixing plate 3B shown in FIG. 9-(a) fixed around the insertion hole 35 on the surface of the retaining wall panel 3. In the drawing, the area of the insertion hole 35 itself on the surface side of the retaining wall panel 3 (opening area) so that the angle of the axis of the reinforcing member 4 with respect to the surface of the retaining wall panel 3 can be adjusted according to the situation in the ground. ) Is larger than the area on the back side (opening area). The vertical shape (shape of the inner peripheral surface) of the insertion hole 35 does not need to be circular.

The retaining wall panel 3 is also formed with a drainage hole 36 for draining residual water such as rainwater existing in the ground from the back surface to the front surface. In the drainage hole 36, a portion that becomes the bottom of the drainage hole 36 when the retaining wall panel 3 is installed is inclined so as to be inclined downward with respect to the horizontal direction from the rear surface side to the front surface side of the retaining wall panel 3. Is attached. In addition, the retaining wall panel 3 has an injection hole 39 for filling (injecting) the filler 7 into the space between the front surface side of the retaining wall panel 3 and the back surface and the slope 10. It is formed by penetrating in the vertical direction. In the drawing, the injection holes 39 are formed at two positions on the vertical surface above the insertion hole 35 on both sides of the center line in the width direction, but the formation position and the number of injection holes 39 are not limited.

When the retaining wall panels 3 are arranged in a plurality of stages in the height direction as shown in FIGS. 2 and 3, as shown in FIG. 1-(c), the lower side of the retaining wall panel 3 (toward the lower side) ), a concave portion 37 having a concave surface side is formed at a position corresponding to the convex portion 32 on the upper side of the retaining wall panel 3 arranged on the lower side, and a convex portion having a convex surface side is formed under the concave portion 37. The part 38 is formed.

In this case, the rear side of the upper side of the retaining wall panel 3 located relatively on the lower side is opposed to and combined with the lower surface side of the retaining wall panel 3 adjacent to the upper side (superposed in the thickness direction). ), the upper convex portion 32 of the retaining wall panel 3 located relatively on the lower side engages downward with the lower convex portion 38 of the retaining wall panel 3 adjacent to the upper side, and It is supported by the retaining wall panel 3. The upper convex portion 32 of the lower retaining wall panel 3 is fitted in the lower concave portion 37 of the upper retaining wall panel 3 in the thickness direction, and the convex portion 38 of the upper retaining wall panel 3 becomes It fits into the recess 31 of the lower retaining wall panel 3 in the thickness direction.

As described above, a filling material (backfill material) 7 such as mortar is filled between the back surface of the retaining wall panel 3 and the slope 10 for the purpose of stably fixing the retaining wall panel 3 to the slope 10. Therefore, as shown in FIGS. 6-(a) and 6-(b), a filling area of the filling material 7 is defined on the back surface of the retaining wall panel 3 to prevent leakage of the filling material 7 from the filling area. The liquid stopping material 5 (sealing material) is fixed (mounted) by embedding or the like. The mounting position of the liquid stopping material 5 differs depending on the number of retaining wall panels 3 forming the retaining wall 1 and the like. For example, the filling area is defined by all the retaining wall panels 3 that form the retaining wall 1, is divided by each step unit arranged in the length direction, or is divided by each retaining wall panel 3 unit. The mounting position of the liquid stopping material 5 is determined.

Since the filling material 7 is filled on the back surface of the retaining wall panel 3 that is installed vertically or inclined to the slope 10, the liquid stopping material 5 is at least below (below) the retaining wall panel 3. It should be attached. After all, the liquid stopping material 5 may be arranged at least below the filling area of the filling material 7 and on both sides in the length direction. When the retaining wall panel 3 is pressed toward the slope 10 side, the liquid stopping material 5 can be elastically deformed freely according to the surface shape (unevenness, etc.) of the slope 10 while being in close contact with the slope 10 and contractible. It is formed of an elastic material such as rubber.

When the retaining wall 1 is composed of one summing block 2 and one retaining wall panel 3, the liquid stopping material 5 is attached to the lower side of the retaining wall panel 3 and both sides in the length direction. When a plurality of retaining wall panels 3 are arranged in the length direction of the retaining wall panel 3, it is not necessary to mount the liquid stopping material 5 on both sides in the longitudinal direction of each retaining wall panel 3, and FIG. As shown in b), it suffices that the retaining wall panels 3 arranged on both sides in the lengthwise direction of each stage are mounted on one side of the retaining wall panel 3 outside the filling area of the filling material 7. Below the retaining wall panel 3, the retaining wall panel 3 is continuously mounted in the longitudinal direction, and on both sides in the longitudinal direction, the retaining wall panel 3 is continuously mounted in the width direction (height direction). The liquid stopping material 5 has a rod-like shape continuous in the length direction, and is attached to the retaining wall panel 3 by, for example, inserting it in the groove formed on the back surface of the concrete which is the main body in the length direction.

Since the retaining wall panel 3 is formed with a water draining hole 36 penetrating the retaining wall panel 3 in the thickness direction, leakage of the filler 7 from the water draining hole 36 is expected. As shown in FIG. 8-(b), the liquid stopping material 51 is also mounted around the water draining hole 36. Since the liquid stopping material 51 for the water draining hole 36 only needs to prevent the filler 7 from leaking from around the water draining hole 36 to the water draining hole 36, it is a hollow block surrounding the water draining hole 36 from the periphery. It is formed in a (box) shape.

Hereinafter, based on FIGS. 1 to 3, an example of a construction procedure for constructing the retaining wall 1 when the retaining wall panels 3 are arranged in three stages in the height direction along the slope 10 will be described. The following construction procedures may be parallel or mixed.

As shown in FIG. 1-(a), the ground is excavated to form a slope 10 having an angle corresponding to the inclination angle of the retaining wall 1 to be constructed or the retaining wall panel 3 to be installed. The slope 10 is formed by the height of at least one stage (one sheet) of the retaining wall panel 3. After that, as shown in (b), the marking block 2 is installed at the uppermost portion (top portion) of the slope 10 with the axial direction oriented in the direction along the top of the slope 10, such as the horizontal direction. At this time, the fixing tool 23 projecting after the marking-out block 2 is installed is inserted into the ground and fixed.

The hanging of the marking-out block 2 by the lifting machine 6 is performed by hanging the to-be-held device 2A connected to the insert 25 on the upper surface side of the marking-out block 2 from the wire of the lifting machine 6. When arranging a plurality of mark-out blocks 2 in the axial direction of the mark-out block 2, all mark-out blocks 2 are installed and fixed on the slope 10 at this point. The hanging tool 2A is removed after the marking block 2 is installed.

When a plurality of marking-out blocks 2 are continuously arranged in the axial direction as shown in FIGS. 8 and 9, for example, as shown in FIG. The block 2 is installed before the retaining wall panel 3 is installed. The corner portion of the uppermost portion (top portion) of the slope 10 on which the marking-out blocks 2 are arranged in the axial direction is basically formed in a linear shape, but is not necessarily limited to a linear shape, and is bent or curved with a small curvature. There are also things to do.

After the marking-out block 2 is installed, as shown in FIG. 1-(c), the retaining wall panel 3 to which the suspending tool 3A is connected is hung on the front side of the marking-out block 2, and the protrusion 21 of the marking-out block 2 is hung up. Then, the convex portion 32 on the upper side of the retaining wall panel 3 is engaged with the lower side to support the retaining wall panel 3 on the marking-out block 2. At this time, the connecting hole 33 of the retaining wall panel 3 is matched with the corresponding insert 25 on the front surface side of the marking block 2. The bolt 8 or the like is screwed into the insert 25 of the marking-out block 2 through the connecting hole 33, and the retaining wall panel 3 is joined to the marking-out block 2. In FIG. 1-(c), the lower end of the retaining wall panel 3 is supported on the upper surface (horizontal surface) of the excavated natural ground, but the lower end of the retaining wall panel 3 is supported to the natural ground, and mainly. The marking block 2 supports the retaining wall panel 3.

The bolts 8 and the like shown in FIGS. 13 and 18-(b) which are screwed into the insert 25 through the connecting holes 33 are provided on the ground (slope 10) of the retaining wall panel 3 by the reinforcing material 4. It may be used for the purpose of temporarily joining the retaining wall panel 3 to the marking block 2 until the fixing. In that case, as shown in FIG. 22-(b), the bolts 8 and the like are collected after the retaining wall panel 3 is fixed to the natural ground by the reinforcing material 4.

Then, as shown in FIG. 1-(d), for inserting the reinforcing member 4 through the insertion hole 35 of the retaining wall panel 3 by using a boring device such as a double pipe casing pipe. 11 is formed. In this case, the drilling tool has a cutting blade attached to the tip in the axial direction, for example, excavating when excavating into the ground accompanied by rotation, so that the space inside the inner pipe of the double pipe or between the inner pipe and the outer pipe is By excavating the excavated soil by utilizing it, the hole 11 is formed in the ground. After forming the drilled hole 11, the reinforcing material 4 is inserted into the drilled hole 11. After the reinforcement material 4 is inserted into the drilled hole 11, or before or at the same time as the insertion, the grout material such as mortar is filled into the drilled hole 11, and the reinforcement material 4 is hardened in the drilled hole 11 (in the grout material). ) Is established.

The axial tip of the reinforcing member 4 is fixed by injecting grout material into the drilled hole 11 or the like, and a head protruding to the surface of the retaining wall panel 3 as described later in the state where tensile force is applied in the axial direction. Since the portion is fixed to the surface of the retaining wall panel 3, a compressive force is applied to the ground and the retaining wall panel 3 is kept in close contact with the slope 10. As the reinforcing material 4, a material capable of introducing a tensile force such as a reinforcing bar, a PC steel material, or a fiber reinforced plastic is used.

When the retaining wall panel 3 is supported by the marking-out block 2, or when the retaining wall panel 3 is joined to the marking-out block 2, the installation of the retaining wall panel 3 for one step is completed. For the purpose of ensuring stability, as shown in FIG. 2-(a), the filler 7 is introduced into the gap between the back surface of the retaining wall panel 3 and the slope 10 through the injection hole 39 of the retaining wall panel 3 as described above. Is filled (injected). The filling material 7 is substantially the same material as the grout material filled in the hole 11 into which the reinforcing material 4 is inserted, and the liquid stopping materials 5 and 51 are fixed to the back surface of the retaining wall panel 3. Therefore, at the time of filling the grout material into the drilled hole 11, the grout material as a filling material may overflow (flow out) from the drilled hole 11 and flow around to the back surface side of the retaining wall panel 3. In that case, the step shown in FIG. 2A is omitted.

When the grout material (filling material 7) overflows from the inside of the drilled hole 11, the grout material tries to pass through the back surface of the retaining wall panel 3 from the insertion hole 35 to the lower and upper parts of the retaining wall panel 3, and the inside of the drilled hole 11 Then the grout material continues to be filled while receiving pressure. As a result, the grout material tries to infiltrate into the ground around the drilled hole 11, so that the ground is stabilized.

After fixing the retaining wall panel 3 to the slope 10, the head portion of the reinforcing member 4 that penetrates the insertion hole 35 and projects toward the front surface side of the retaining wall panel 3 as shown in FIG. The fixing plate 3B or the like shown in FIG. 9-(a), which is installed around the sheet, is fixed with a nut or the like. When the retaining wall 1 is composed only of the stake-out block 2 and the one-stage retaining wall panel 3, the construction (construction work of the retaining wall 1) ends when the work of FIG. 2-(b) ends. ..

When arranging the retaining wall panels 3 on the lower side of the retaining wall panel 3 shown in FIG. 2-(b), as shown in FIG. 2-(c), the ground below the uppermost retaining wall panel 3 is Excavation is performed to form a slope 10 for installing the retaining wall panel 3 on the lower side thereof. In this case, as described above, as shown in FIGS. 2-(d) and 3-(a), the position corresponding to the convex portion 32 on the lower side of the surface of the retaining wall panel 3 and on the upper side of the retaining wall panel 3. A concave portion 37 is formed in the concave portion 37, and a convex portion 38 corresponding to the concave portion 31 is formed under the concave portion 37.

After forming the slope 10 for installing the lower retaining wall panel 3, the upper rear surface of the lower retaining wall panel 3 is the lower side of the upper retaining wall panel 3 as shown in FIG. 2D. Are assembled facing each other. The upper convex portion 32 of the lower retaining wall panel 3 is engaged with the convex portion 38 downward while fitting into the lower concave portion 37 of the upper retaining wall panel 3 to form a lower retaining wall. The panel 3 is supported by the upper retaining wall panel 3.

After that, as shown in FIGS. 3A to 3C, the lower retaining wall panel 3 is fixed to the slope 10 by the reinforcing material 4, and the lower retaining wall panel 3 is filled with the filler 7 on the rear surface side. Of the retaining wall 1 composed of the two retaining wall panels 3 and 3 at the time when the work of filling and fixing the head portion of the reinforcing member 4 inserted through the lower retaining wall panel 3 to the retaining wall panel 3 is completed. Construction is complete. When the retaining wall panels 3 are arranged in three or more stages, the work of FIGS. 2-(d) to 3-(c) is further repeated as shown in FIG. 3-(d).

FIG. 8-(a) shows a state on the front surface side of the retaining wall 1 in which five retaining wall panels 3 are arranged in the height direction of the slope 10 with the reinforcing member 4 omitted, and (b) shows the rear surface side thereof. The situation is shown. FIGS. 9-(a) and 9-(b) show a state in which four retaining wall panels are arranged in the height direction of the slope 10 and each retaining wall panel 3 is fixed to the slope 10 by the reinforcing material 4.

FIGS. 10 to 15 show a marking block 2 and a marking block 2 suitable for a method of installing a plurality of marking blocks 2 on the top of the slope 10 while preliminarily connecting them in the axial direction as shown in FIG. 16-(a). An example of manufacturing the wall panel 3 will be shown. FIGS. 10-(a) and (b) are suitable for joining the auxiliary connecting material 27 shown in FIG. 12 for connecting with the half (half) size marking-out block 2 of (a) shown in (c). An example of the production of the colored block 2 is shown. FIG. 11 shows an example of manufacturing a retaining wall panel 3 that is suitable for combination with the marking block 2 shown in FIG. Also in this example, a connecting hole 33 for connecting with the marking block 2 and an injection hole 39 for filling the filling material 7 are formed on the upper side of the retaining wall panel 3, and the reinforcing material 4 is inserted in the central portion or the like. And a drain hole 36 is formed on the lower side.

Since it is assumed that the auxiliary connecting member 27 shown in FIG. 12 is joined to the bottom surface (lower surface) of the marking-out block 2 and straddles the two marking-out blocks 2, 2, the marking-out block 2 shown in FIG. A shallow bottom portion 28 having a width (height) smaller than other portions of the bottom surface for accommodating the auxiliary connecting members 27 is formed on the bottom surface side on both sides in the axial direction in a shape in which concrete is cut out. From the bottom surface side of the shallow bottom portion 28, an insert 25 into which the bolt 8 or the like penetrating the auxiliary connecting member 27 is screwed is embedded. In addition, the fact that the insert 25 is embedded from the upper surface side and the front surface side of the marking-out block 2 and that the vertical groove 26 for the fixing tool 23 is formed on the front surface side is different from the examples shown in FIGS. 4 and 5. Is the same.

As shown in FIGS. 12-(a) and (b), the auxiliary connecting member 27 has at least the joining piece 271 for overlapping and joining the shallow bottom portion 28 of the marking-out block 2, but in the example shown here, marking-out is performed. In order to increase the stability of the block 2 fixed to the slope 10, the contact piece 272 that overlaps the slope 10 is connected to the joining piece 271 and is formed in an L shape. As shown in FIG. 13, the joining piece 271 is formed with an insertion hole 27a through which the bolt 8 or the like for joining the joining piece 271 to the shallow bottom portion 28 is inserted. The contact piece 272 is formed with an insertion hole 27b through which the contact piece 282 is inserted and the fixing tool (anchor) 23 driven into the ground is inserted.

As shown in FIGS. 11-(a) and (b), a connecting hole 33 is formed in the retaining wall panel 3 at a position corresponding to the insert 25 on the surface side of the marking block 2, and the lower side of the retaining wall panel 3 is formed. Inserts 34 are embedded from the front surface side of the retaining wall panel 3 at positions corresponding to the connecting holes 33 of the retaining wall panel 3 adjacent to the retaining wall panel 3. In FIG. 11, since the connecting hole 33 of the retaining wall panel 3 is formed in the upper concave portion 31, the lower insert 34 is embedded in the lower convex portion 38 fitted into the concave portion 31.

In FIG. 11, as shown in FIG. 24-(b), in order to divide the filling area of the filling material 7 filled in the back surface of the retaining wall panel 3 into retaining wall panel 3 units, the lower end portion side of the retaining wall panel 3 and The liquid stopping material 5 is attached to one side (side surface side) in the length direction. In the example shown in FIG. 11, the liquid stopping material 5 on the lower end side of the retaining wall panel 3 is arranged in a region covering the back surface of the water draining hole 36. It also serves as the liquid material 51.

In FIG. 13, two mark-out blocks 2 and 2 having different lengths shown in FIGS. 10-(a) and (c) are connected by an auxiliary connecting member 27 shown in FIG. 12 as shown in FIG. 16-(a). After being fixed to the slope 10 in this state, the retaining wall panel 3 shown in FIG. 11 is installed on the slope 10 and is supported by the marking block 2 and the slope 10. In FIG. 13, the lower end of the retaining wall panel 3 is pushed (pulled) toward the slope 10 as shown in FIGS. 19-(a) and (b), and the entire retaining wall panel 3 is installed along the slope of the slope 10. Then, in order to adjust the installation angle, the adjusting material 3C shown in FIG. 15 is joined to the lower end portion of the retaining wall panel 3, and the attracting device 3D is connected to the adjusting material 3C.

The adjusting material 3C overlaps the surface of the convex portion 38 at the lower end portion (lower side) of the retaining wall panel 3 and joins the joint piece 3C1 joined by the bolt 8 or the like screwed into the insert 34 embedded in the convex portion 38. A holding tool (eyebolt) 3A for connecting the pulling device 3D is connected to the holding and joining piece 3C1. The joint piece 3C1 of the adjusting material 3C is formed with an insertion hole 3Ca into which the bolt 8 and the like for joining itself to the convex portion 38 and for joining the suspending tool 3A to the joint piece 3C1 are inserted. The suspended object 3A is joined together with the suspended object 3A, for example, on the joint piece 3C1 by a bolt 8 or the like for joining the adjusting member 3C to the convex portion 38. The drawing shows an example in which the adjusting member 3C is formed in an L shape.

The pulling device 3D pulls the lower end portion of the retaining wall panel 3 toward the slope 10 directly by using the tensile force between the retaining wall panel 3 or by using the tensile force as a reaction force of the retaining wall panel 3. It works to push the lower end portion toward the slope 10. A fixing tool 23 such as an anchor pin is fixed to the ground that takes the reaction force of the tensile force. A lever block (registered trademark) as shown in FIG. 13 is suitable for use as the attracting device 3D in the case of utilizing the tensile force.

In the case of the lever block (registered trademark), the lever 3D4 is moved in a state in which the hook 3D2 connected to one end of the chain 3D1 is connected to the hanging tool 3A and the hook 3D3 connected to the other end is connected to the fixing tool 23. By reciprocating, tension is applied to the chain 3D1. As shown in FIGS. 19-(a) and (b), with the introduction of tension to the chain 3D1, the distance between the hooks 3D2 and 3D3 is shortened, and the lower end portion of the retaining wall panel 3 approaches the slope 10 to stop the liquid. The material 5 comes into close contact with the slope 10 and the installation angle of the retaining wall panel 3 is adjusted.

For adjusting the angle of the retaining wall panel 3 by the pulling device 3D, as shown in FIG. 20, a plurality of retaining wall panels 3 adjacent to each other in the length direction of the retaining wall panel 3 are connected by using a connecting member 3E shown in FIG. It may be worked in a state. Similar to the adjusting member 3C, the connecting member 3E also has a joining piece 3E1 that overlaps the surface of the convex portion 38 at the lower end of the retaining wall panel 3 and is joined by the bolt 8 or the like. The joining piece 3E1 is formed with an insertion hole 3Ea into which the bolt 8 and the like are inserted. The drawing shows an example in which the connecting member 3E is also formed in an L shape.

Based on FIGS. 16 to 23, an example of a construction procedure for installing the marking block 2 shown in FIG. 10 and the retaining wall panel 3 shown in FIG. 11 on the slope 10 by using the components shown in FIGS. 12 to 15 will be described. To do. Unlike the method shown in FIGS. 1 to 3, the method shown in FIGS. 16 to 23 is different from the method shown in FIGS. 1 to 3 in that before the formation of the drilled hole 11 and the insertion of the reinforcing material 4, the filling material 7 is applied to the back surface of the retaining wall panel 3. It is a procedure to precede the filling of. Since the filling with the filling material 7 precedes the formation of the drilling hole 11, it is possible to prevent drilling water and slime generated when the drilling hole 11 is formed from flowing around to the back surface of the retaining wall panel 3 and to prevent the drilling water from flowing around. This makes it possible to avoid a situation in which the filling of the filling material 7 becomes difficult.

FIG. 16-(b) shows the difference in length shown in FIGS. 10-(a) and (c) after forming the slope 10 shown in FIG. 1-(a), as shown in FIG. 16-(a). 12 shows a state in which the marking-out blocks 2 and 2 of the book are connected to each other using the auxiliary connecting member 27 shown in FIG. 12 and suspended on the top of the slope 10 and the fixing tool 23 is driven into the ground. In this example, since the auxiliary connecting material 27 is joined to the marking-out block 2, the fixing tool 23 that penetrates the contact piece 272 of the auxiliary connecting material 27 and is fixed in the ground as shown in FIG. Since the fixing of the marking-out block 2 to the ground is supplemented, the stability against movement of the marking-out block 2 in a fixed state on the slope 10 (ground) and the support ability of the retaining wall panel 3 are enhanced.

After fixing the marking-out block 2 to the slope 10, the retaining wall panel 3 shown in FIGS. 11 and 17 is hung on the surface side of the marking-out block 2 as shown in FIG. Support. FIG. 17-(a) shows the back surface of the retaining wall panel 3 shown in FIG. 11-(a), and FIG. 17(b) shows the side surface, but FIG. 17-(a) shows the retaining wall panel 3 and FIG. The retaining wall panel 3 of a) shows an example in which the arrangement of the liquid stopping material 5 mounted on one side in the length direction is different.

In the example of FIG. 17-(a), when the retaining wall panels 3 are arranged adjacent to each other in the length direction, a rubber or the like having elasticity is provided on the side surface of each retaining wall panel 3 on the side adjacent to the retaining wall panel 3. An example of a case where the joint material 52 is attached by embedding or the like is also shown. The joint material 52 has the role of preventing the generation of voids between the adjacent retaining wall panels 3 and 3 and ensuring the liquid tightness between the retaining wall panels 3 and 3, and the retaining wall panel of the filler 7 having fluidity. 3 Prevent leakage to the surface side.

After supporting the retaining wall panel 3 on the marking block 2, the adjusting member 3C shown in FIG. 15 is inserted into the insert 34 embedded in the lower convex portion 38 of the retaining wall panel 3 as shown in FIG. 18-(b). Are joined by bolts 8 and the like, and the suspending tool 3A is connected to the adjusting material 3C by the same bolts 8 and the like, while the fixing tool 23 is inserted on the slope 10 at a position corresponding to the adjusting material 3C. Here, as shown in FIG. 19-(a), a pulling device 3D is provided between the adjusting member 3C and the fixing tool 23, and the lower end portion of the retaining wall panel 3 is sloped by operating the lever 3D4. 10) and adjust the installation angle of the retaining wall panel 3 as shown in (b).

20-(a) shows five mark-out blocks 2 axially connected by auxiliary connecting members 27 shown in FIG. 12, and as shown in FIG. 20(b), connecting member 3E shown in FIG. The state of the surface of the retaining wall 1 for one step when four connected retaining wall panels 3 are combined and piled up is shown. Here, ½ size stake-out blocks 2 shown in FIG. 10-(c) are arranged on both axial sides of the connected stake-out blocks 2, and one retaining wall panel 3 has two stake-out blocks. It is supported across blocks 2 and 2.

Since one retaining wall panel 3 straddles the two marking blocks 2 and 2, the weight of the retaining wall panel 3 is shared by the two marking blocks 2 and 2, so that one marking block is used. Inclination and displacement of the marking block 2 that may occur when only two support one retaining wall panel 3 are unlikely to occur. In FIG. 20-(a), a vertical broken line perpendicular to the horizontal line indicating the upper surface of the marking-out block 2 indicates a boundary line between the marking-out blocks 2 and 2 adjacent to each other. FIG. 20-(b) shows the retaining wall unit 1A for one stage of the four retaining wall panels 3 before being supported by the five marking blocks 2 shown in (a). An adjusting material 3C shown in FIG. 15 is also joined to each retaining wall panel 3.

After the uppermost retaining wall panel 3 is supported by the marking block 2 as shown in FIG. 19-(b) and the adjustment of the installation angle is completed, the filler 7 is retained through the injection hole 39 as shown in FIG. The space between the back surface of the wall panel 3 and the slope 10 is filled. At this time, in order to prevent the filler 7 from leaking out from the insertion hole 35, the elastically deformable closing member 53 is temporarily inserted into the insertion hole 35 from the front surface side of the retaining wall panel 3. The blocking member 53 is formed in a spherical shape, a cylindrical shape, or the like corresponding to the vertical shape (inner peripheral shape) of the insertion hole 35. It is appropriate that the filling operation of the filling material 7 is divided into a plurality of times so that the pressure on the liquid stopping material 5 does not become excessive. In the case of the example of manufacturing the retaining wall panel 3 shown in FIGS. 11 and 17, since the liquid stopping material 5 is attached to the lower side of each retaining wall panel 3 and one side in the length direction, the filler 7 is the retaining wall panel. It will be filled in 3 units.

After the filling material 7 is filled, as shown in FIG. 22-(a), the blocking material 53 is recovered from the insertion hole 35, and the drilling hole 11 for inserting the reinforcing material 4 using the drilling tool through the insertion hole 35. Then, the reinforcing material 4 is inserted into the drilled hole 11, and the grout material is filled into the drilled hole 11 through the insertion hole 35. After the fixing of the reinforcing material 4 into the drilled hole 11 (in the grout material) by the hardening of the grout material is completed, the head of the reinforcing material 4 is fixed to the fixing plate 3B or the like as shown in FIG. The installation work of the retaining wall panel 3 is completed. After that, with the bolts 8 and the like temporarily joining the upper end portion of the retaining wall panel 3 to the marking-out block 2, the fixing tool 23 fixing the lower end portion to the ground, the attracting device 3D, and the hanging tool 3A. The adjusting material 3C is recovered. These bolts 8 and the like are repeatedly used for temporary fixing and angle adjustment of the retaining wall panel 3 when installed on the lower side.

When installing the retaining wall panel 3 on the lower side of the uppermost stage, as shown in FIG. 23-(a), the ground below the uppermost retaining wall panel 3 is excavated and the retaining wall panel 3 on the lower stage side is excavated. A slope 10 for installing the is formed. Subsequently, as shown in (b), the lower retaining wall panel 3 is overlaid on and supported by the upper retaining wall panel 3. After that, the work shown in FIGS. 18 to 22 is repeated.

FIG. 24 shows the standard size marking block 2 shown in FIG. 10-(a), the four 1/2 size marking blocks 2 shown in (c), and the standard size retaining wall panel 3 shown in FIG. The retaining wall 1 is formed by arranging three retaining wall panels 3 in the axial direction of the marking block 2 and arranging four retaining wall panels 3 in the width direction (height direction) of the marking block 2 An example of construction of the retaining wall 1 in the case of doing is shown. The plurality of retaining wall panels 3 for one stage become the retaining wall unit 1A, and the retaining wall 1 may be constructed only from the marking block 2 and the one retaining wall unit 1A. A plurality of staking out blocks connected in the axial direction are connected by an auxiliary connecting member 27 as shown in FIG. 20-(a), and the plurality of retaining wall panels 3 arranged in the length direction are shown in FIG. 20-(b). ), they are connected by a connecting member 3E.

In FIG. 24, edges (side surfaces) on both sides in the length direction of each retaining wall panel 3 that constitutes the upper retaining wall unit 1A and both sides in the longitudinal direction of each retaining wall panel 3 that configures the lower retaining wall unit 1A. The edges (sides) are aligned. As shown in FIG. 11-(a) and FIG. 17-(a), the liquid stopping material 5 is mounted on the lower side and one side in the length direction on the back surface of the retaining wall panel 3, so that a plurality of retaining walls are retained. Since the liquid stopping material 5 is absent on one side in the length direction when the wall panels 3 are connected in the length direction, as shown in FIG. 24-(b), the liquid stopping material 5 is absent. A liquid stopping material 5 is separately mounted on one side in the length direction.

FIG. 25 shows four marking blocks 2 of two types (standard size and 1/2 size) shown in FIGS. 10-(a) and (c), a standard-size retaining wall panel 3 shown in FIG. 11, and a standard size. 24 shows an example of a combination of the retaining wall panels 3 in the case where the retaining wall panel 3 having the same area as FIG. 24 is configured by using the retaining wall panel 3 having a size of 1/2 (half) of the retaining wall panel 3. Also in this example, when the plurality of retaining wall panels 3 arranged in the length direction constitute the retaining wall unit 1A, the liquid stopping material 5 is separately provided on one side in the length direction on the side where the liquid stopping material 5 is absent. It is installed.

In the example of FIG. 25, the four-step retaining wall panels 3 below the stake-out block 2 are arranged one staggered by one half of the length of the standard-size retaining wall panel 4 in the length direction, and arranged in a staggered pattern. It is in the state of having done. As a result, the load of the retaining wall panel 3 located relatively on the lower stage side is dispersed and supported by the two retaining wall panels 3 and 3 located immediately above, so that the individual retaining wall panels 3 located relatively on the upper stage side are supported. There is an advantage that displacement such as inclination in the plane of the retaining wall panel 3 is less likely to occur, and the shape stability of the entire retaining wall 1 is improved as compared with the example of FIG.

1... Retaining wall,
2... Inking block, 21... Convex part, 22... Recessed part, 23... Fixing tool, 24... Through hole, 25... Insert, 26... Vertical groove, 2A... Suspended tool, 27... ... Auxiliary connecting member, 271 ... Joining piece, 27a ... Insertion hole, 272 ... Abutting piece, 27b ... Insertion hole, 28 ... Shallow bottom part,
3... Retaining wall panel, 31... (upper side) concave part, 32... (upper side) convex part, 33... Connection hole, 34... Insert, 35... Insertion hole, 36... Water Draw hole, 37... (lower side) concave portion, 38... (lower side) convex portion, 39... injection hole,
3A: Hanging object, 3B: Fixing plate,
3C... adjusting material, 3C1... joining piece, 3Ca... insertion hole,
3D... pulling device, 3D1... chain, 3D2... hook, 3D3... hook, 3D4... lever,
3E... connecting material, 3E1... joining piece, 3Ea... insertion hole,
4... Reinforcement material,
5... Liquid stopping material, 51... Liquid stopping material, 52... Joint material, 53... Closing material,
6...lifting machine,
7... Filling material (backfill material),
8...bolt,
10...Slope,
11... Drilling.

Claims (6)

A fixing tool, which is arranged on the top of the slope with the axial direction directed along the top of the slope, and which is fixed to the slope by embedding a fixing tool protruding from the back side to the ground side in the ground. A withdrawal block and a retaining wall panel that is arranged below the ink-indicating block and through which a reinforcing material embedded in the ground penetrates, and a head protruding from the slope of the reinforcing material is fixed.
The lower side of the front surface side of the marking block formed convex portion surface side is a convex Rutotomoni, concave relative surface becomes concave on the convex portion is formed, the retaining wall panel On the upper side of the back side of the, at the position corresponding to the convex portion of the marking block, a concave portion having a concave rear surface is formed, a convex portion having a convex rear surface is formed on the concave portion,
The back side of the upper side of the retaining wall panel is combined to face the front side of the marking block, the convex portion of the retaining wall panel engages the convex portion of the marking block downward .
At the connection position of the fixing tool in the marking-out block, a plurality of through-holes through which the fixing tool penetrates the marking-out block in the thickness direction are formed at intervals in the axial direction of the marking-out block. A slope stabilization retaining wall, in which a vertical groove is formed on the recess side of the through hole so that the fixing tool is locked to the slope side . A concave portion having a concave surface side is formed at a position corresponding to the convex portion on the upper side of the retaining wall panel on the lower side of the surface side of the retaining wall panel, and the surface side is convex below the concave portion. A convex portion is formed,
The rear side of the upper side of the retaining wall panel located relatively on the lower side is combined so as to face the lower surface side of the retaining wall panel adjacent to the upper side, and the rear side of the retaining wall panel is positioned relatively on the lower side. The slope stabilization according to claim 1, wherein the convex portion on the upper side of the retaining wall panel is engaged with the convex portion on the lower side of the retaining wall panel adjacent to the upper side downward. Retaining wall. The marking-out blocks are arranged so as to face each other in the axial direction, and the retaining wall panel located at the uppermost portion among the retaining wall panels is supported across two marking-out blocks that are axially adjacent to each other. The slope stabilizing retaining wall according to claim 1 or 2, wherein the slope stabilizing retaining wall is provided. The staking-out blocks are arranged so as to face each other in the axial direction, and an auxiliary connecting member that straddles both ends of the staking-out blocks is installed between the adjacent staking-out blocks and is joined to both. The slope stabilizing retaining wall according to any one of claims 1 to 3. A method for constructing the slope stabilization retaining wall according to any one of claims 1 to 4,
A step of fixing the marking-out block to the ground using a fixing tool embedded in the ground on the top of the slope;
A step of supporting the retaining wall panel on the marking block by engaging the convex portion on the upper side of the retaining wall panel with the convex portion of the marking block to the lower side;
A hole for inserting a reinforcing material penetrating the retaining wall panel in the thickness direction into the ground is formed in the ground below the marking block, and the reinforcing material is inserted into the hole. And a step of filling the hole with grout material. A step of additionally filling the grout material into the drilled hole and allowing the material to penetrate into the ground,
The method of constructing the slope stabilization retaining wall according to claim 5, further comprising: filling a back surface side of the retaining wall panel with a filler.

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