Construction method for reinforcement member of masonry retaining wall

Abstract

To materialize a construction method for a reinforcement member to reinforce a masonry retaining wall without damaging the exterior appearance of the masonry retaining wall in the construction.SOLUTION: This invention is a construction method for a reinforcement member to reinforce a masonry retaining wall constructed by stacking a plurality of wedge stones placed adjacently to each other on the surface of ground. The construction method includes a process to drill a hole by two-step drilling on the aforesaid wedge stone, a process at the opening part of the aforesaid hole to form a first drill hole part positioned in the back side of the aforesaid ground and a second drill hole part positioned in the front side of the aforesaid ground, a process to insert a reinforcement member into the aforesaid hole and fill a filler into the aforesaid first hole part, a process to fit a closing member to the aforesaid second hole part and to fill adhesive filling the gap between the aforesaid second drill hole part and the aforesaid closing member. The aforesaid closing member is made with use of stone material collected during the process of drilling the aforesaid hole. The aforesaid adhesive is made by crushing the stone material collected during the aforesaid closing material being made and by mixing the crushed stone with grout or cement.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a method for constructing reinforcing members in a masonry retaining wall in which a soil layer is provided on the back surface of a filler stone or stone material via gravel or broken granite, or in which a soil layer is provided directly on the back surface of a filler stone or stone material. [Background technology]

[0002] Stone retaining walls are known as structures that prevent the collapse of sloping ground surfaces. In these masonry retaining walls, rainwater is likely to flow into the gaps between the stones due to shaking caused by earthquakes, aging, and deterioration over time. For these reasons, there is a concern that the soil layer may become hollow from the back side of the masonry retaining wall to the inside, and that the earth pressure resistance of the ground may decrease. If the hollowing occurs inside and the earth pressure resistance decreases, the strength of the entire masonry retaining wall may decrease, leading to the risk of collapse.

[0003] Therefore, there are cases where reinforcing members are installed in the masonry retaining wall to reinforce the masonry retaining wall. For example, Patent Document 1 discloses a reinforcement method for a masonry retaining wall in which a hardened layer of urethane foam is formed in the gaps in the backfill grease stone layer of the masonry retaining wall to strengthen the connection of the masonry retaining wall to the sloping ground. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2022-69791 Summary of the Invention [Problem to be solved by the invention]

[0005] Generally, when installing reinforcing members on a stone retaining wall, it is known that the heads of the reinforcing members are not allowed to protrude from the stone such as a filler stone, but rather the interior of the stone is hollowed out to form a recess, the reinforcing members are installed so that they fit into the recess, and a filling material such as grout is then filled into the recess to complete the process.

[0006] Stone retaining walls have a long history, and there are many of them with high historical value. In cases where the landscape is important, traces of processing such as exposed heads during construction of reinforcing members can be problematic. In addition, the stones used in stone retaining walls, such as granite, are each a different color, and if general grout or cement is used as a filler, the reinforced parts will stand out and the landscape may be marred.

[0007] In the technology of the above-mentioned Patent Document 1, in consideration of such a problem, it is described that a thin plate of the gap stone is placed on a caulking part formed in a head receiving recess for receiving the head of a reinforcing member, and the head receiving recess is blocked. It is described that the thin plate of the gap stone is a part of the gap stone taken out by the forming operation of the head receiving recess in the gap stone, or a processed stone material similar to the gap stone is used.

[0008] However, in order to fit the thin gap stone plate into the head accommodating recess as in Patent Document 1, the diameter of the thin gap stone plate is smaller than that of the head accommodating recess, and it is thought that a gap will occur between the thin gap stone plate and the head accommodating recess, but no means for filling this gap is disclosed.

[0009] In view of the above circumstances, an object of the present invention is to provide a method for constructing a reinforcing member for reinforcing a masonry retaining wall, which does not impair the appearance of the masonry retaining wall. [Means for solving the problem]

[0010] In order to achieve the above-mentioned object, according to the present invention, there is provided a construction method for a reinforcing member for reinforcing a stone retaining wall in which a plurality of infill stones are piled adjacent to each other on the surface of the natural ground, the construction method for a reinforcing member including the steps of: drilling a hole on the infill stone by two-stage drilling; forming a first drilling portion located on the back side of the natural ground and a second drilling portion located on the front side of the natural ground at the opening of the hole; inserting a reinforcing member into the hole and filling the first drilling portion with a filler; and fitting a blocking member into the second drilling portion and filling an adhesive so as to fill the gap between the second drilling portion and the blocking member, wherein the blocking member is made by processing the stone obtained in the step of drilling the hole, and the adhesive is made by crushing the stone obtained when making the blocking member and mixing it with grout or cement.

[0011] In addition, according to the present invention, there is provided a method for constructing a reinforcing member to reinforce a stone retaining wall in which a number of infill stones are piled adjacent to each other on the surface of the natural ground, the method comprising the steps of: drilling a hole on the infill stone by two-stage drilling; forming a first drilling portion located on the back side of the natural ground and a second drilling portion located on the front side of the natural ground at the opening of the hole; processing the stone obtained in the hole drilling step to prepare a blocking member, and integrating the blocking member and the reinforcing member with an adhesive to prepare a reinforcing blocking member; inserting the reinforcing blocking member into the hole and filling the first drilling portion with a filler; and filling the gap between the second drilling portion and the reinforcing blocking member with an adhesive, wherein the adhesive is prepared by crushing the stone obtained when preparing the blocking member and mixing it with grout or cement.

[0012] In addition, according to the present invention, there is provided a method for constructing a reinforcing member to reinforce a masonry retaining wall in which a plurality of gap stones are piled adjacent to each other on the surface of the natural ground, the method comprising the steps of: drilling a hole on the gap stone by two-stage drilling; forming a first drilled portion located on the back side of the natural ground and a second drilled portion located on the front side of the natural ground at the opening of the hole; inserting a reinforcing member into the hole and filling the first drilled portion with a filler; fitting a blocking member into the second drilled portion and filling a filler or adhesive so as to fill the gap between the second drilled portion and the blocking member; and attaching crushed stone to the surface of the filler or adhesive filled in the gap between the second drilled portion and the blocking member to form a crushed stone attachment portion, wherein the blocking member is made by processing the stone obtained in the step of drilling the hole, and the crushed stone is obtained by crushing the stone obtained when making the blocking member.

[0013] According to the present invention, there is also provided a method for constructing a reinforcing member for reinforcing a masonry retaining wall in which a plurality of infill stones are piled up adjacent to one another on the surface of the natural ground, the method comprising the steps of: drilling a hole on the infill stone by two-stage drilling; forming a first drilled portion located on the back side of the natural ground and a second drilled portion located on the front side of the natural ground at the opening of the hole; processing the stone obtained in the hole drilling step to produce a blocking member; and integrating the blocking member and the reinforcing member with an adhesive to produce a reinforcing blocking member. The present invention provides a method for constructing a reinforcing member, the method comprising the steps of: preparing a reinforcing member; inserting the reinforcing member into the hole and filling the first drilled portion with a filler; filling the gap between the second drilled portion and the reinforcing member with a filler or adhesive so as to fill the gap between the second drilled portion and the reinforcing member; and attaching crushed stone to the surface of the filler or adhesive filled in the gap between the second drilled portion and the blocking member to form a crushed stone attachment portion, wherein the crushed stone is crushed stone obtained when preparing the blocking member. Effect of the Invention

[0014] According to the present invention, a method for constructing a reinforcing member for reinforcing a masonry retaining wall is realized which does not impair the appearance of the masonry retaining wall. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a schematic explanatory diagram showing an example of the configuration of a stone retaining wall. [Diagram 2] FIG. 2 is a schematic explanatory diagram of a reinforcing structure. [Diagram 3] FIG. 2 is a schematic explanatory diagram of a reinforcing structure. [Figure 4] FIG. 2 is a schematic explanatory diagram of a reinforcing structure. [Diagram 5] FIG. 4 is a schematic explanatory diagram showing a configuration of a reinforcing member. [Figure 6] 4 is a schematic enlarged cross-sectional view of the opening of a hole. FIG. [Figure 7] FIG. 4 is a schematic explanatory diagram of a method for installing a reinforcing member. [Figure 8] FIG. 4 is a schematic explanatory diagram of a method for installing a reinforcing member. [Figure 9] FIG. 4 is a schematic explanatory diagram of a method for installing a reinforcing member. [Figure 10] FIG. 4 is a schematic explanatory diagram of a method for installing a reinforcing member. [Figure 11] FIG. 4 is a schematic explanatory diagram of a method for installing a reinforcing member. [Figure 12] FIG. 1 is a schematic diagram illustrating the processing and crushing of stone materials. [Figure 13] 13 is a schematic enlarged cross-sectional view of the opening of a hole when a construction method according to another embodiment is performed. FIG. [Figure 14] FIG. 2 is a schematic diagram of a reinforcing blocking member. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this specification and the drawings, components having substantially the same functional configurations are given the same reference numerals to avoid repeated explanations. Also, components and the like that overlap between the description of the conventional technology and the description of this embodiment may be given the same reference numerals to avoid repeated explanations.

[0017] <Outline of stone retaining wall structure> Fig. 1 is a schematic explanatory diagram showing an example of the configuration of a masonry retaining wall 1. As shown in Fig. 1, the masonry retaining wall 1 includes a soil layer 10, which is a sloping bedrock of natural ground, and gap stones 20 piled up on the surface (upper surface, sloping surface) of the soil layer 10 via broken granite stones 14 and gravel 15. That is, on the surface of the soil layer 10, a plurality of gap stones 20 are piled up vertically and horizontally so as to be adjacent to one another. The plurality of gap stones 20 may be provided without gaps, or may be provided so as to form gaps of a predetermined width at the boundaries between adjacent gap stones 20.

[0018] In addition, although FIG. 1 shows a configuration in which the broken granite stones 14 and gravel 15 are provided, the gap stones 20 may be directly piled up on the surface of the soil layer 10 without the broken granite stones 14 and gravel 15. The gap stones 20 may be configured, for example, to have a substantially square front surface, with each of the multiple gap stones 20 having substantially the same length toward the natural ground side and a substantially triangular vertical cross section. In addition, gap stones 20 having a rectangular cross section may be arranged so that one is arranged horizontally so that its longitudinal direction extends horizontally along the natural ground surface, and the other is arranged vertically so that its longitudinal direction extends toward the natural ground side, alternately adjacent to each other. In this specification, in order to simplify the illustration and description, the gap stones 20 may be illustrated simply as stones having a rectangular cross section.

[0019] <Reinforcement structure of stone retaining wall according to this embodiment> Figures 2 to 4 are schematic explanatory diagrams of a reinforcement structure 50 for a stone retaining wall according to this embodiment, with Figure 2 being a schematic plan view, Figure 3 being a schematic front view, and Figure 4 being a schematic side view. As shown in Figure 2, in the configuration according to this embodiment, a reinforcing member 60 is inserted into a soil layer 10 located on the back side (natural ground side) of the stone retaining wall 1. The reinforcing member 60 is inserted by drilling holes in the gap stones 20, for example.

[0020] 2 and 3, multiple contact stones 20 may be provided adjacent to each other, and the orientation of adjacent contact stones 20 may be different. That is, the contact stones 20 shown in the figure, which are approximately rectangular in shape, may be provided adjacent to each other in alternating rows of horizontally arranged stones with their longitudinal direction extending horizontally along the surface of the ground and vertically arranged stones with their longitudinal direction extending toward the ground.

[0021] As shown in Figures 3 and 4, at least some of the gap stones 20 have holes 55 drilled toward the natural ground. As shown in Figure 4, the holes 55 extend to a position deeper than the installation length of the gap stones 20, penetrate the gap stones 20, and extend to a predetermined depth in the soil layer 10.

[0022] As shown in Fig. 4, a reinforcing member 60 for reinforcing the reinforcement structure 50 of the masonry retaining wall is inserted into the hole 55. Here, as shown in the figure, a predetermined area on the front side of the reinforcing member 60 and its periphery is defined as a gap stone area W1, and a predetermined area on the natural ground side (back side) is defined as a natural ground area W2. In the reinforcing member 60, the gap stone area W1 is filled with a resin material U1, and the natural ground area W2 is filled with a hardening material U2. It is preferable that the pull-out resistance of the hardening material U2 against the soil layer 10 is higher than that of the resin material U1.

[0023] The configuration of the reinforcing member 60 is arbitrary, but as an example, it may include a pipe material 30 that is hollow inside and a packer material 40 that surrounds the periphery of the pipe material 30. For example, a rock bolt may be used as the pipe material 30, and for example, a bag-shaped member made of fibrous material that is permeable to the liquid material may be used as the packer material 40. An example of the configuration of this reinforcing member 60 will be described below with reference to FIG. 5.

[0024] <Structure of reinforcing member> FIG. 5 is a schematic explanatory diagram showing the configuration of the reinforcing member 60, and shows a schematic cross section of the reinforcing member 60 inserted into the hole 55 drilled in the gap stone 20. As shown in FIG. 5, the reinforcing member 60 includes a hollow pipe material 30 with both ends open, and a packer material 40 attached so as to surround the pipe material 30, and a cable tie 66 is attached to a predetermined position in the longitudinal direction. When the reinforcing member 60 is inserted into the hole 55, the natural ground side end 30a, which is one end of the pipe material 30, is not restrained, while the gap stone side end 30b, which is the other end, is fixed to the opening 55a of the hole 55 drilled in the gap stone 20. As an example of the fixing means, a spiral groove is formed on the peripheral surface of the pipe material 30, and the pipe material 30 is inserted into the hole 55 and screwed into the opening 55a using a nut member 68. The opening 55a is blocked by a blocking member 59.

[0025] The opening 55a of the hole 55 formed in the gap stone 20 may have a two-stage drilling structure, and the opening diameter on the front side of the gap stone 20 may be different from the opening diameter on the back side of the gap stone 20. In the cross-sectional view shown in FIG. 8, as an example of dimensions, the cross section of the gap stone 20 may be 200 mm x 200 mm, and the two-stage drilled hole diameter may be 90 mm and 65 mm. The detailed configuration of the opening 55a will be described later with reference to the drawings.

[0026] As shown in the figure, in the reinforcing member 60, the area including the inside of the packer material 40 is divided into two by binding with a cable tie 66, and the area close to the gap stone 20 may be configured as the gap stone area W1, and the area close to the soil layer 10 may be configured as the natural ground area W2. A hose 70 may be inserted into the gap stone area W1 from the opening 55a, and the resin material U1 may be filled into the gap stone area W1 using this hose 70. On the other hand, in the natural ground area W2, the hardening material U2 may be filled from the opening of one end (natural ground side end 30a) of the pipe material 30. The gap stone area W1 and the natural ground area W2 are not connected by the binding with the cable tie 66, and the resin material U1 and the hardening material U2 may not be mixed with each other.

[0027] In this embodiment, the reinforcing member 60 is illustrated and described as including the hollow pipe material 30 and the packer material 40 attached so as to surround the periphery thereof, but the present invention is not limited to this. For example, the reinforcing member 60 may be configured only with the hollow pipe material 30.

[0028] <Opening configuration> 6 is a schematic enlarged cross-sectional view of the opening 55a of the hole 55 drilled in the gap stone 20. As shown in FIG. 6, the opening 55a has a two-stage drilling structure, including a first drilling section 75 on the natural ground side and a second drilling section 77 on the surface side. The diameter φ1 of the first drilling section 75 is smaller than the diameter φ2 of the second drilling section 77. The diameter φ1 of the first drilling section 75 may be, for example, 65 mm, and the diameter φ2 of the second drilling section 77 may be, for example, 90 mm.

[0029] The first drilling section 75 is configured so that the reinforcing member 60 can be inserted, and when the reinforcing member 60 is inserted, the end 30b of the pipe 30 on the side of the gap is positioned in the second drilling section 77, and the pipe 30 can be fixed in place using a nut 68 as shown in the figure. Additionally, a filler may be filled into the hole 55 from the first drilling section 75. Examples of the filler include grout, cement, urethane, etc., which harden over time, and the reinforcing member 60 is fixed in the hole 55 as the filler hardens.

[0030] Also, as shown in the figure, the second hole-drilling section 77 can close the hole 55 by fitting a blocking member 59 into the opening side. With the blocking member 59 fitted, the gap 82 between the blocking member 59 and the second hole-drilling section 77 can be filled with adhesive to more reliably close the hole 55. Crushed stone (crushed stone 85, described below) may be attached to the surface of the adhesive filled to fill the gap 82 in this manner to form a crushed stone attachment section 83.

[0031] <Construction method> The flow of construction of the reinforcing member 60 in the masonry retaining wall 1 will be described with reference to the drawings. Figs. 7 to 11 are schematic explanatory diagrams of the construction method of the reinforcing member 60, and construction is carried out in this order. First, in the masonry retaining wall 1 including a plurality of gap stones 20 piled up on the surface (upper surface, inclined surface) of the soil layer 10 via broken granite stones 14 and gravel 15 (see Fig. 1), holes are drilled in the gap stones 20 at predetermined positions. As shown in Figs. 7 and 8, the stone material 85 cut out when the gap stones 20 are drilled is used in a subsequent process. As shown in Fig. 9, the drilled hole portion 55 has a two-stage drilling structure, and a first drilling portion 75 and a second drilling portion 77 are formed.

[0032] 10, the reinforcing member 60 is inserted into the hole 55, and the first drilled hole portion 75 is filled with the filler U1. The reinforcing member 60 may be fixed to the opening 55a using a nut member 68 while inserted into the hole 55 as shown. When the reinforcing member 60 includes the pipe material 30 and the packer material 40 attached so as to surround the pipe material 30, the filler U1 may be poured into the tip of the pipe material 30, or may be poured into the first drilled hole portion 75 in advance. The type of filler U1 is arbitrary, and examples include grout, cement, urethane, etc. that harden over time.

[0033] Then, as shown in FIG. 11, the blocking member 59 is fitted into the opening side of the second drilling portion 77. Then, the gap 82 between the blocking member 59 and the second drilling portion 77 is filled with adhesive U2. The blocking member 59 used here is made by processing the stone 85 obtained when drilling the gap stone 20. The adhesive U2 used here is made by crushing the stone 85 obtained when making the blocking member 59 and mixing it with grout or cement. Here, crushed stone may be attached to the surface of the filled adhesive U2 to form a crushed stone attachment portion 83.

[0034] Fig. 12 is a schematic diagram for explaining the processing and crushing of stone 85, and processing and crushing are performed in the order of (a) to (c). As shown in Fig. 12, stone 85 cut from rubble stone 20 is cut into stone 85. One cut portion 85a is processed to a size to fit into the opening side of second drilling section 77. The other portion 85b is crushed and mixed with grout or cement as described above to produce adhesive U2.

[0035] In this construction method, the reinforcing member 60 inserted into the hole 55 is fixed by the hardening of the filler filled in the first drilled portion 75. Because the hole 55 has a two-stage drilled structure, the reinforcing member 60 fits inside the second drilled portion 77 without protruding from the hole 55. In this state, the opening side of the second drilled portion 77 is blocked by the blocking member 59, so that the reinforcing member 60 is not visible from the outside. In this way, construction is completed without the reinforcing member 60 being visible.

[0036] <Action and effect> According to the method of constructing the reinforcing member 60 in the masonry retaining wall 1 of this embodiment, when closing the hole 77, a stone obtained by drilling the gap stone 20 is processed and used as the closing member 59. As a result, even after the construction of the reinforcing member 60, reinforcement is achieved without impairing the appearance.

[0037] Furthermore, when the opening side of hole 55 (second drilled hole portion 77) is blocked by blocking member 59, adhesive is filled into gap 82 between blocking member 59 and second drilled hole portion 77. The adhesive used is made by crushing stone obtained when making blocking member 59 and mixing it with grout or cement. This allows reinforcement to be achieved without compromising the appearance.

[0038] Each of the gap stones 20 that make up the masonry retaining wall 1 has a different color, and general reinforcement and repair methods may damage the appearance. Therefore, blocking members 59 and adhesives are made using stone material cut from each of the gap stones 20, and by using the blocking members 59 and adhesives on the gap stones 20 themselves from which the stones were cut, the masonry retaining wall 1 can be stably reinforced without damaging the appearance.

[0039] Although an example of an embodiment of the present invention has been described above, the present invention is not limited to the illustrated embodiment. It is clear that a person skilled in the art can come up with various modified or revised examples within the scope of the ideas described in the claims, and it is understood that these also naturally belong to the technical scope of the present invention.

[0040] For example, in the construction method of the reinforcing member 60 described in the above embodiment, a part of the stone 85 cut off (the other part 85b shown in FIG. 12) is crushed and mixed with grout or cement as the adhesive U2 to be filled in the gap 82 between the blocking member 59 and the second drilled hole portion 77, but the present invention is not limited to this. Specifically, the gap 82 between the blocking member 59 and the second drilled hole portion 77 may be filled with grout, cement, urethane, etc. similar to the above-mentioned filler U1, and crushed stone may be attached to the surface to form the crushed stone attachment portion 83. The crushed stone used in this case may be crushed stone 85.

[0041] <Another embodiment of the present invention> In the above embodiment, a construction method has been described in which the reinforcing member 60 is inserted into the hole 55 and fixed to the opening 55a using the nut member 68, and in this state the opening side of the second drilled hole 77 is blocked by the blocking member 59 (see Figs. 6 and 10), but the technology according to the present invention is not limited to this. For example, construction may be performed using a member (reinforcing blocking member 100 described later) in which the reinforcing member 60 and the blocking member 59 are integrated. Hereinafter, such construction will be described as another embodiment of the present invention. In the following description, components having the same functional configuration as those in the above embodiment are illustrated with the same reference numerals, and their description may be omitted.

[0042] FIG. 13 is a schematic enlarged cross-sectional view of the opening 55a of the hole 55 when the construction method according to another embodiment of the present invention is performed. FIG. 14 is a schematic diagram of a reinforcing and closing member 100 used in the construction method according to another embodiment. As shown in FIG. 13, in the construction according to this embodiment, the reinforcing and closing member 100 is inserted into the first drilled hole portion 75 of the hole 55, and the first drilled hole portion 75 is filled with a filler U1. The filler U1 may be poured from the tip of the reinforcing member, or may be poured into the first drilled hole portion 75 in advance. Also, the gap 105 between the reinforcing and closing member 100 and the second drilled hole portion 77 is filled with an adhesive U2.

[0043] The reinforcing and blocking member 100 is an integrated member in which a blocking member 102 is fixed to one end of a reinforcing member 101 made of a pipe material as shown in Fig. 14. The blocking member 102 is produced by processing a stone material obtained when drilling a hole in the gap stone 20, as in the above embodiment. In addition, when fixing one end of the reinforcing member 101 to the blocking member 102, a hole 103 may be opened in the blocking member 102 and the two may be fixed with an adhesive.

[0044] According to the construction method of this other embodiment, a reinforcing and blocking member 100 is used, which is a member in which a reinforcing member 101 and a blocking member 102 are integrated. Therefore, members such as washers and nuts that are usually used to fix the reinforcing member at the head are not required, and construction is simplified. In addition, as with the above embodiment, stable reinforcement of the masonry retaining wall 1 is achieved without compromising the appearance. [Industrial Applicability]

[0045] The present invention can be applied to a construction method for reinforcing members in stone retaining walls in which a soil layer is provided on the back surface of a retaining stone or stone material via gravel or broken granite, or in which a soil layer is provided directly on the back surface of a retaining stone or stone material. [Explanation of symbols]

[0046] 1... Stone retaining wall 10…soil layer 14…Broken granite 15…Gravel 20…Machinishi 30…Pipe material 32…Space 40…Packer material 50…Reinforcement structure 55...hole 59...Blocking member 60…Reinforcing member 66…Cable tie 68...Nut member 75…First drilling section 77…Second drilling section 85...Stone 100...Reinforcement blocking member W1: Interstitial stone area W2: Natural rock mass area U1…Filling material U2…Glue

Claims

1. A method for constructing a reinforcing member for reinforcing a masonry retaining wall in which a plurality of infill stones are piled up adjacent to each other on the surface of the ground, A step of drilling a hole portion on the indentation stone by two-stage drilling; forming a first drilled hole portion located on the back side of the natural ground and a second drilled hole portion located on the front side of the natural ground at an opening of the hole portion; inserting a reinforcing member into the hole and filling the first drilled hole with a filler; and fitting a blocking member into the second hole portion and filling a gap between the second hole portion and the blocking member with an adhesive. The blocking member is produced by processing the stone obtained in the step of drilling the hole portion, A method for constructing a reinforcing member, characterized in that the adhesive is prepared by crushing stone obtained when preparing the blocking member and mixing it with grout or cement.

2. A method for constructing a reinforcing member for reinforcing a masonry retaining wall in which a plurality of infill stones are piled up adjacent to each other on the surface of the ground, A step of drilling a hole portion on the indentation stone by two-stage drilling; forming a first drilled hole portion located on the back side of the natural ground and a second drilled hole portion located on the front side of the natural ground at an opening of the hole portion; a step of processing the stone material obtained in the step of drilling the hole to prepare a blocking member, and integrating the blocking member and the reinforcing member with an adhesive to prepare a reinforcing blocking member; inserting the reinforcing member into the hole and filling the first drilled hole with a filler; and filling the gap between the second drilled portion and the reinforcing and closing member with adhesive, A method for constructing a reinforcing member, characterized in that the adhesive is prepared by crushing stone obtained when preparing the blocking member and mixing it with grout or cement.

3. A method for constructing a reinforcing member for reinforcing a masonry retaining wall in which a plurality of infill stones are piled up adjacent to each other on the surface of the ground, A step of drilling a hole portion on the indentation stone by two-stage drilling; forming a first drilled hole portion located on the back side of the natural ground and a second drilled hole portion located on the front side of the natural ground at an opening of the hole portion; inserting a reinforcing member into the hole and filling the first drilled hole with a filler; a step of fitting a blocking member into the second hole portion and filling a gap between the second hole portion and the blocking member with a filler or adhesive; and a step of attaching crushed stone to the surface of the filler or adhesive filled in the gap between the second drilled portion and the blocking member to form a crushed stone attachment portion. The blocking member is produced by processing the stone obtained in the step of drilling the hole portion, A method for constructing a reinforcing member, characterized in that the crushed stone is made by crushing stone obtained when producing the blocking member.

4. A method for constructing a reinforcing member for reinforcing a masonry retaining wall in which a plurality of infill stones are piled up adjacent to each other on the surface of the ground, A step of drilling a hole portion on the indentation stone by two-stage drilling; forming a first drilled hole portion located on the back side of the natural ground and a second drilled hole portion located on the front side of the natural ground at an opening of the hole portion; a step of processing the stone material obtained in the step of drilling the hole to prepare a blocking member, and integrating the blocking member and the reinforcing member with an adhesive to prepare a reinforcing blocking member; inserting the reinforcing member into the hole and filling the first drilled hole with a filler; filling a gap between the second drilled portion and the reinforcing and closing member with a filler or adhesive; and a step of attaching crushed stone to the surface of the filler or adhesive filled in the gap between the second drilled portion and the blocking member to form a crushed stone attachment portion. A method for constructing a reinforcing member, characterized in that the crushed stone is made by crushing stone obtained when producing the blocking member.

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