JP2021139102A - Stone wall or masonry wall reinforcing method and reinforcing structure and reinforcing member - Google Patents

Abstract

To provide a stone wall or masonry wall reinforcing method and reinforcing structure and reinforcing member, which can exert a sufficient aseismatic reinforcing property by securely forming a cylindrical solidified layer body that is a uniform and high-quality reinforcing material without including an excavation process (without forming a borehole).SOLUTION: A stone wall or masonry wall reinforcing method includes: a step to insert a reinforcing member 10, which has a hollow rod-like member 1 on which a plurality of discharge holes 1a are provided in an axial direction, a water permeable sheet 2 to cover the hollow rod-like member 1, and a protective pipe 3 having a slit 3a fitted on the water permeable sheet 2, into a joint part of a stone mounting layer 21; and a step to form a cylindrical solidified layer body 9 on a circumference of the reinforcing member 10 to reinforce by injecting a solidification material 8 in a hollow portion of the hollow rod-like member 1 and damming the solidification material 8 discharged from the discharge holes 1a through the hollow portion with the water permeable sheet 2 and oozing substantially uniformly the solidification material to the inside of the protective pipe 3 so as to be discharged to the outside through the slit 3a of the protective pipe 3.SELECTED DRAWING: Figure 3

Description

The present invention belongs to the technical field of reinforcement method and structure of stone wall or masonry wall and reinforcement member, and further, it preserves stone wall or masonry wall which is the outer wall part of a building which is historically valuable and has high preservation value. , Reinforcement technology to achieve the purpose of preservation and reproduction by improving the inside (behind).

In recent years, for example, the techniques according to Patent Documents 1 to 3 are known as slope stabilizers for stabilizing the ground on a slope where the ground of the surface layer may collapse or fall off. These techniques are common inventions in which an injection pipe is placed in a hole excavated in the ground and a reinforcing material is created by an injection material pressure-injected into the injection pipe, and the bearing resistance of the reinforcing material against a pulling force. Some effects such as being able to increase the force are recognized.

However, when the technique according to Patent Documents 1 to 3 is applied to a technique for reinforcing a stone wall or a masonry wall, it is not preferable because a hole is formed including an excavation step, which impairs the appearance. This is especially true for stone walls or masonry walls that are historically valuable and have high preservation value.
On the other hand, Patent Document 4 is a technique for reinforcing a masonry wall without including an excavation process (without forming a hole), and is attracting attention.

As shown in Figs. On the other hand, by placing a reinforcing material at each of a plurality of joints where the plurality of Machi stones abut each other and filling the periphery of the reinforcing material with a grout material, the reinforcing material is applied to the sloped ground. A method of reinforcing a masonry wall that is fixed and the reinforcing material is placed to push a plurality of the stones adjacent to the outer periphery of the joint portion to the outside to mutually restrain the stones. (See the description of claim 2 and the like).
Then, in paragraph [0032] of the same document 4, as a method of filling the grout material around the reinforcing material, for example, a mortar having a predetermined composition of fluidity is applied from the front side of the masonry wall to the periphery of the reinforcing material. A method of press-fitting using a pump (first method), or a method of applying a grout material to the outer peripheral surface of the reinforcing material in advance and placing it together with the reinforcing material (second method). Further, a method in which a supply passage for the grout material is formed inside or outside the reinforcing material, and after the reinforcing material is placed, the grout material is filled around the reinforcing material via the supply passage (third method). ) Can be adopted.

Japanese Patent No. 6259750 Japanese Patent No. 6322542 Japanese Patent No. 6322543 Japanese Patent No. 4316939

Although the invention according to Patent Document 4 has an advantage that the masonry wall can be reinforced without including the excavation step, there is a problem in the method of filling the grout material.
That is, when filling a place having a large void such as a backfilled chestnut stone layer, the mortar inevitably flows down in the direction of gravity at the time of press fitting because it has fluidity in the first method, and is uniform around the reinforcing material. There is a problem that a solidified body cannot be formed. Further, in the second method, there is a problem that the concrete means of how to realize it is unclear, and even if it can be realized, the effect is ambiguous and the certainty is clearly poor. Further, in the third method, a large amount of grout material is discharged from the passage (hole) near the supply port, the grout material does not reach the sloped ground in the back, and a non-uniform reinforcing material is formed. There is a problem in quality such as that it is not possible to demonstrate sufficient seismic retrofitting performance.

Therefore, the present invention has been devised in view of the above-mentioned problems of the background technology, and the purpose of the present invention is to provide uniform and high-quality reinforcement without including an excavation process (no drilling is formed). It is an object of the present invention to provide a reinforcing method, a reinforcing structure, and a reinforcing member of a stone wall or a masonry wall, which can exhibit sufficient seismic retrofitting performance by surely forming a tubular solidified layer body which is a material.

As a means for solving the above problems, the method for reinforcing a stone wall or a masonry wall according to the invention according to claim 1 is a method for reinforcing a stone wall or a masonry wall.
A stone layer having a hollow rod-shaped member provided with a plurality of discharge holes in the axial direction, a water-permeable sheet exteriored by the hollow rod-shaped member, and a reinforcing member having a protective tube having a slit externally fitted to the water-permeable sheet. The process of inserting into the joint part of
A solidifying material is injected into the hollow portion of the hollow rod-shaped member, and the solidifying material discharged from the discharge hole through the hollow portion is blocked by the water-permeable sheet and exuded substantially evenly into the inside of the protective tube. A step of forming a tubular solidified layer on the outer periphery of the reinforcing member and reinforcing it by discharging it to the outside through a slit of the protective tube.
It is characterized by having.

The invention according to claim 2 is the fixing layer in which the stone wall or the masonry wall reinforcement method according to claim 1 is such that the reinforcing member has a deep end portion thereof via a chestnut stone layer behind the stone-building layer. It is characterized in that the tubular solidified layer body is formed on the chestnut stone layer to reinforce the position by fixing the tubular solidified layer body to the stone wall.

According to the third aspect of the present invention, in the method for reinforcing a stone wall or a masonry wall according to the first or second aspect, the discharge hole of the hollow rod-shaped member is opened in the upper half portion when the reinforcing member is positioned. It is characterized by being provided in.

The invention according to claim 4 is the method for reinforcing a stone wall or a masonry wall according to any one of claims 1 to 3, wherein the slit of the protective pipe opens at the top when the reinforcing member is positioned. It is characterized in that it is provided as follows.

In the invention according to claim 5, in the method for reinforcing a stone wall or a masonry wall according to any one of claims 1 to 4, after injecting the solidifying material, a fixing plate is attached to the base end portion of the reinforcing member. It is characterized in that it is provided to support the stone wall or the masonry wall.

The reinforcing structure of the stone wall or the masonry wall according to the invention according to claim 6 includes a hollow rod-shaped member provided with a plurality of discharge holes in the axial direction, a water-permeable sheet outerized by the hollow rod-shaped member, and the water-permeable sheet. Reinforcing members with protective tubes with externally fitted slits are positioned behind the stone layer,
The solidifying material discharged from the discharge hole through the hollow portion of the hollow rod-shaped member exudes substantially evenly from the water-permeable sheet to the inside of the protective tube, and is discharged to the outside through the slit of the protective tube to be solidified. A tubular solidified layer is formed on the outer periphery of the reinforcing member to be reinforced.

The invention according to claim 7 is the fixing layer in which the inner end of the reinforcing member is present through the chestnut stone layer behind the stone building layer in the reinforcing structure of the stone wall or the masonry wall according to claim 6. It is characterized in that the tubular solidified layer body is formed and reinforced in the chestnut stone layer.

The reinforcing member according to the invention according to claim 8 is a reinforcing member used in the method for reinforcing a stone wall or a masonry wall according to any one of claims 1 to 5, and is provided with a plurality of discharge holes in the axial direction. It is characterized by having a hollow rod-shaped member, a water-permeable sheet outerized on the hollow rod-shaped member, and a protective tube provided with a slit externally fitted to the water-permeable sheet.

The invention according to claim 9 is characterized in that, in the reinforcing member according to claim 8, the discharge holes of the hollow rod-shaped member are provided so that the hole diameter becomes larger and the hole spacing becomes shorter toward the back. And.

According to the method and structure for reinforcing a stone wall or a masonry wall and a reinforcing member according to the present invention, the following effects are obtained.
(1) A stone wall or masonry that exhibits sufficient seismic retrofitting performance by reliably forming a tubular solidified layer that is a uniform and high-quality reinforcing material without including the excavation process (no drilling is formed). The wall can be realized (regenerated).
(2) Since it does not include an excavation process, it has the advantage of preserving the appearance, and preserves the stone wall or masonry wall, which is the outer wall part of a building that is historically valuable and has a high preservation value, and improves the inside (behind) of it. The purpose of preservation / reproduction can be achieved.

It is explanatory drawing which showed the construction situation of the reinforcement construction method of the stone wall or the masonry wall which concerns on this invention. It is a front view (left side view) of FIG. It is a vertical cross-sectional view which roughly showed the reinforcement construction method and the reinforcement structure of the stone wall or the masonry wall which concerns on this invention. It is a front view (left side view) of FIG. A is an overall view showing the reinforcing member according to the present invention, B is a front view showing a hollow rod-shaped member constituting the reinforcing member, and C is a front view showing a water permeable sheet. D is a front view showing a protective tube. FIG. 5 is an enlarged cross-sectional view taken along the line XX of the reinforcing member of FIG. 5A. A is an enlarged cross-sectional view taken along the line AA of the hollow rod-shaped member of FIG. 5B, and B is an enlarged cross-sectional view taken along the line BB. FIG. 5C is an enlarged cross-sectional view of the water permeable sheet of FIG. 5C. FIG. 5 is an enlarged cross-sectional view taken along the line YY of the protective tube of FIG. 5D.

Next, the reinforcing method and the reinforcing structure of the stone wall or the masonry wall and the reinforcing member according to the present invention will be described with reference to the drawings.

1 to 9 show an embodiment of a reinforcing method and a reinforcing structure of the stone wall 20 and a reinforcing member 10 according to the present invention.
The method for reinforcing the stone wall 20 is a hollow rod-shaped member 1 provided with a plurality of discharge holes in the axial direction, a water-permeable sheet 2 exteriord by the hollow rod-shaped member 1, and a slit 3a externally fitted in the water-permeable sheet 2. The step of inserting the reinforcing member 10 having the protective pipe 3 provided with the stone wall (stone) 21 into the joint portion (see FIGS. 1 and 2).
The solidifying material 8 is injected into the hollow portion of the hollow rod-shaped member 1, and the solidifying material 8 discharged from the discharge hole 1a through the hollow portion is substantially blocked inside the protective tube 3 while being blocked by the water permeable sheet 2. A step of forming a tubular solidified layer 9 on the outer periphery of the reinforcing member 10 and reinforcing it by allowing it to exude evenly and discharging it to the outside through the slit 3a of the protective tube 3 (see FIGS. 3 and 4). Has.

The reinforcing member 10 has a protective tube 3 (see FIG. 5C) having a slit 3a on the outer periphery of the water-permeable sheet 2 (see FIG. 5C) that is externally attached to the hollow rod-shaped member 1 (see FIG. 5B) so that FIG. 5 can be easily understood. It has a double-tube three-layer structure in which (see FIG. 5D) is externally fitted (see FIGS. 5A and 6). Incidentally, the total length of the reinforcing member 10 can be appropriately changed according to the structural design of the stone wall 20, but in this embodiment, the total length is 2800 mm as an example.
In this embodiment, the reinforcing member 10 has its inner end fixed to a fixing layer 23 such as a ground that exists behind a stone layer 21 via a chestnut layer 22 with a fixing material 12 such as cement or grout. The tubular solidified layer 9 is formed on the Kuriishi layer 22 to reinforce it.
As the solidifying material 8, urethane foam is used in this embodiment, but foam grout can also be used. However, in stone walls 20 and the like, which are important cultural properties, if the chestnut stone 22 and the solidifying material 8 are fixed, the value as a cultural property is lost. Therefore, the chestnut stone 22 can be fixed by filling the gap of the chestnut stone layer 22 and easily. Urethane foam that can be separated is desirable.

As shown in FIGS. 5B and 7A and 7B, the hollow rod-shaped member 1 is implemented by a hollow perforated tube made of a thick hard metal or the like. In this embodiment, as an example, a steel pipe having a wall thickness of 3.7 mm, an outer diameter of 21.7 mm, and a total length of 2800 mm is used. A drilling bit (lost bit) 7 is rotatably connected to the back end portion via a rod ring or the like.
On the peripheral wall of the intermediate portion (corresponding to the region of the Kuriishi layer 22) of the hollow rod-shaped member 1, a discharge hole 1a (about φ5 to 8 mm in this embodiment) that communicates inside and outside over a length of 1500 mm in the axial direction is provided. A large number of them are provided in a row (two rows in this embodiment) at a predetermined pitch in the axial direction (37.5 mm pitch in this embodiment) and at a predetermined interval in the circumferential direction. Specifically, as shown in FIGS. 7A and 7B, the two rows are provided at two locations symmetrically at positions on both the left and right sides of the vertical line when viewed in cross section, and the solidifying material is provided. The structure is such that 8 can be equally discharged diagonally upward.

The size of the discharge hole 1a is preferably about φ5 to 8 mm as described above. In this embodiment, the diameter on the front side (stone 21) side where the injection port is close and the discharge amount of the solidifying material 8 tends to be large is small φ5 mm (see FIG. 7A), and the discharge amount of the solidifying material 8 is far from the injection port. The diameter on the back side (fixing layer 23) is large (see FIG. 7B), and the pitch (hole spacing) is shortened toward the back side (for example, 25 mm pitch) to the outside. The discharge amount of the above is adjusted so as to be substantially uniform from the front side to the back side, and the tubular solidified layer 9 formed in the Kuriishi layer 22 is devised so as to have an even and well-balanced shape.
Of course, the diameter, arrangement interval, and number of holes of the discharge holes 1a are not limited to these, and are appropriately designed according to the structural design on the premise that the solidifying material 8 can be efficiently discharged and diffused into the Kuriishi layer 22. It can be changed.

As shown in FIGS. 5C and 8, the water-permeable sheet 2 has a substantially cylindrical shape having a thickness of 0.2 mm, an outer diameter (φ) of 22 mm, and a total length of about 1500 mm so that the hollow rod-shaped member 1 can be exteriorized. It is being manufactured. In this embodiment, the water-permeable sheet 2 molded into a cylindrical shape is fitted onto the outer peripheral portion of the hollow rod-shaped member 1 and slid to cover the entire intermediate portion in which the discharge hole 1a is arranged for positioning. do. There are various positioning means, but in this embodiment, a tape material (for example, double-sided tape) is attached to both ends of the water permeable sheet 2 in the longitudinal direction and fixed to the hollow rod-shaped member 1. Thus, all the solidifying materials 8 discharged from the discharge holes 1a are implemented so as not to be discharged to the outside unless they permeate through the water permeable sheet 2.

The performance (permeability) of the water-permeable sheet 2 is to allow the solidifying material 8 discharged from the discharge hole 1a of the hollow rod-shaped member 1 to seep out substantially evenly and moderately to the outside (inside the protective tube 3) while blocking the solidifying material 8. For example, a water permeability coefficient of about 3 × 10 ⁻² cm / s is preferable.
The water-permeable sheet 2 according to the present embodiment is externally fitted with a cylindrical member molded in advance to the hollow rod-shaped member 1, but the present invention is not limited to this, and for example, the hollow rod-shaped member 1 is formed. It is also possible to wrap the member 1 along the outer peripheral surface and attach the key points with a tape material to the exterior.

As shown in FIGS. 5D and 9, the protective tube 3 is implemented as a hollow tube made of a thin, hard metal or the like. In this embodiment, as an example, a steel pipe having a wall thickness of 2.0 mm, an outer diameter of 31.8 mm, and a total length of 2000 mm is used. A drilling bit 7 is connected to the back end portion via a rod ring or the like.
On the peripheral wall corresponding to the region of the Kuriishi layer 22 in the protective tube 3, slits 3a having a width dimension of 5 mm and an axial length of 100 mm are arranged in a row in the axial direction at a predetermined pitch (this embodiment) over a length of 1500 mm in the axial direction. In the example, a total of 10 pieces are provided at a pitch of 50 mm), and these are used as discharge holes for the solidifying material 8. Of course, the size and number of the slits 3a are not limited to this, and the design can be appropriately changed according to the structural design.
The outer diameter of the protective tube 3 is appropriately changed in design according to the size of the joint portion of the stone layer 21 to be applied, but is usually preferably about 20 to 30 mm.

Thus, the reinforcing member 10 according to the present embodiment is further lengthened on the outer periphery of the tubular water-permeable sheet 2 outerized in the intermediate portion (range of a length of 1500 mm corresponding to the Kuriishi layer 22) of the hollow rod-shaped member 1. A protective tube 3 having a length of 2000 mm is implemented in a double tube three-layer structure in which the tip portions of the hollow rod-shaped member 1 are aligned and fitted externally (see FIGS. 5A and 6). The protective tube 3 is provided to protect the water permeable sheet 2.

Next, the construction process of the stone wall 20 reinforcement method according to the present invention will be described.
In the reinforcement method of the stone wall 20, the reinforcing member 10 having the above-described configuration is inserted into the joint portion of the stone layer 21 by a drilling machine (lightweight boring machine, not shown) such as a drifter that applies a striking force while rotating. A slope (for example, about 5 to 10 degrees) is provided slightly diagonally downward in the horizontal direction, and the stone is driven toward the anchoring layer 23 such as a ground. In this embodiment, although not shown, the structure is such that the inner bit connected to the drilling machine via a rod is inscribed in the drilling bit 7 at the tip of the hollow rod-shaped member 1 and the protective tube 3. A striking force (propulsive force) is applied while rotating the rod and the inner bit by operating the drilling machine, and the drilling bit 7 is driven by rotating the drilling bit 7 following (interlocking) the rotation of the inner bit.
In this embodiment, in consideration of the good flow of the solidifying material 8, the solidifying material 8 is cast on the fixing layer 23 with a slope slightly diagonally downward in the horizontal direction, but the casting is not limited to this, and the solidifying material 8 is cast in the horizontal direction. Of course, it can also be carried out.

Then, after the reinforcing member 10 is driven into a predetermined position of the fixing layer 23, specifically, as shown in FIG. 1, the rear end portion of the reinforcing member 10 (hollow rod-shaped member 1) is outside the stone wall 20. Drive in until it slightly protrudes from (see Fig. 1).
As shown in FIG. 6, the reinforcing member 10 is provided so that the discharge hole 1a of the hollow rod-shaped member 1 is opened in the upper half portion at the stage of positioning after finishing the driving, and the slit of the protective tube 3 is provided. 3a is provided so as to open at the top. The significance of providing the discharge portion upward as a whole in this way is that the solidifying material 8 discharged from the discharge hole 1a and the slit 3a (particularly the slit 3a) is not only below the peripheral portion of the reinforcing member 10 but also below. This is to discharge and diffuse as much as possible upward. This is to form a high-strength, high-quality tubular solidified layer 9 having a wide solidified region.

Subsequently, position adjustment such as inserting an injection tube (for example, about φ13 mm, not shown) for injecting a fixing material 12 such as cement or grout into the hollow portion of the reinforcing member 10 (hollow rod-shaped member 1) is inserted all the way. I do. If necessary, the injection part and the non-injection part are separated by inserting an insert packer equipped with a check valve packer to prevent leakage.
Next, the fixing material 12 is injected through the injection tube and discharged from the inner end of the reinforcing member 10 (hollow rod-shaped member 1) to the outside, and as shown in FIG. 3, around the reinforcing member 10. The fixing layer 23 is consolidated by the fixing material 12 to impose the role of an anchor.

Next, the solidifying material (urethane foam) 8 is injected from the injection port of the reinforcing member 10 (hollow rod-shaped member 1). The solidifying material 8 is discharged from the discharge hole 1a through the hollow portion of the hollow rod-shaped member 1, and further exudes substantially evenly to the outside (inside the protective tube 3) through the water-permeable sheet 2, and the protective tube 3 It is discharged and diffused to the lumber layer 22 through the slit 3a of the above. Thus, not only the inside of the reinforcing member 10, but also the chestnut stones 22 are consolidated while filling the gap formed between the chestnut stones 22 around the reinforcing member 10, thereby improving the chestnut stone layer 22 to a predetermined strength and rigidity. The solidified layer 9 is formed.

After that, the stone wall 20 is supported by joining the fixing plate 11 to the protruding portion of the rear end portion (base end portion) of the reinforcing member 10 (hollow rod-shaped member 1) by a joining means such as bolts and welding.

Then, the construction steps described in the above paragraphs [0028] to [0032] are repeated according to the number of the reinforcing members 10 to be cast (12 in a substantially staggered arrangement in the illustrated example), thereby reinforcing the stone wall 20. To finish.

Thus, in the reinforcing structure constructed by the above-mentioned reinforcing method of the stone wall 20, the reinforcing member 10 is positioned and fixed to the fixing layer 23 via the slit stone layer 22 behind the stone building layer 21, and the reinforcing member 10 has a hollow rod shape. The solidifying material 8 discharged from the discharge hole 1a through the hollow portion of the member 1 is discharged and diffused from the slit 3a of the protective tube 3 to the outside through the water permeable sheet 2 in a substantially even and well-balanced manner to be solidified. A uniform, high-quality tubular solidified layer 9 is formed on the outer periphery of the reinforcing member 10 to exhibit a reinforced structure.

Although the examples have been described above based on the drawings, the present invention is not limited to the illustrated examples, and includes a range of design changes and application variations normally performed by those skilled in the art within a range that does not deviate from the technical idea thereof. I will mention it just in case.
For example, the dimensions, performance, and the like of the hollow rod-shaped member 1, the water-permeable sheet 2, and the protective tube 3 constituting the reinforcing member 10 are merely examples. Of course, the hollow rod-shaped member 1 and the protective tube 3 can be made of a single piece or a tube material having a threaded end end connected to each other by a coupler.
Further, in this embodiment, the stone wall 20 has been mainly described, but the same can be applied to a masonry wall.

1a Discharge hole 1 Hollow rod-shaped member 2 Water permeable sheet 3 Protective pipe 3a Slit 4 Drilling bit (lost bit)
8 Solidifying material 9 Cylindrical solidifying layer 10 Reinforcing member 11 Fixing plate 12 Fixing material (cement)
20 Stone wall 21 Stone layer (stone)
22 Kuriishi layer (Kuriishi)
23 Settlement layer (ground)

Claims (9)

A stone layer having a hollow rod-shaped member provided with a plurality of discharge holes in the axial direction, a water-permeable sheet exteriored by the hollow rod-shaped member, and a reinforcing member having a protective tube having a slit externally fitted to the water-permeable sheet. The process of inserting into the joint part of
A solidifying material is injected into the hollow portion of the hollow rod-shaped member, and the solidifying material discharged from the discharge hole through the hollow portion is blocked by the water-permeable sheet and exuded substantially evenly into the inside of the protective tube. A step of forming a tubular solidified layer on the outer periphery of the reinforcing member and reinforcing it by discharging it to the outside through a slit of the protective tube.
A method of reinforcing a stone wall or a masonry wall, which is characterized by having. The reinforcing member is positioned by fixing its inner end portion to a fixing layer existing via a chestnut stone layer behind the stone wall, and forms the tubular solidified layer body in the chestnut stone layer to reinforce it. The method for reinforcing a stone wall or a masonry wall according to claim 1, wherein the method is characterized by the above. The method for reinforcing a stone wall or a masonry wall according to claim 1 or 2, wherein the discharge hole of the hollow rod-shaped member is provided so as to open in the upper half portion when the reinforcing member is positioned. The method for reinforcing a stone wall or a masonry wall according to any one of claims 1 to 3, wherein the slit of the protective pipe is provided so as to open at the top when the reinforcing member is positioned. The stone wall or the stone wall according to any one of claims 1 to 4, wherein a fixing plate is provided at the base end portion of the reinforcing member to support the stone wall or the masonry wall after the solidifying material is injected. Reinforcement method for masonry walls. A reinforcing member having a hollow rod-shaped member provided with a plurality of discharge holes in the axial direction, a water-permeable sheet exteriored by the hollow rod-shaped member, and a protective tube having a slit externally fitted to the water-permeable sheet is a stone layer. Being positioned behind
The solidifying material discharged from the discharge hole through the hollow portion of the hollow rod-shaped member exudes substantially evenly from the water-permeable sheet to the inside of the protective tube, and is discharged to the outside through the slit of the protective tube to be solidified. A reinforcing structure for a stone wall or a masonry wall, characterized in that a tubular solidified layer is formed on the outer periphery of the reinforcing member to be reinforced. The reinforcing member is positioned by fixing its inner end portion to a fixing layer existing via a chestnut stone layer behind the stone wall, and the tubular solidified layer body is formed in the chestnut stone layer to be reinforced. The reinforcing structure of the stone wall or the masonry wall according to claim 6, wherein the stone wall or the masonry wall is characterized by the above. A reinforcing member used in the method for reinforcing a stone wall or a masonry wall according to any one of claims 1 to 5, which is a hollow rod-shaped member provided with a plurality of discharge holes in the axial direction and is externally mounted on the hollow rod-shaped member. A reinforcing member having a water-permeable sheet and a protective tube provided with a slit that is externally fitted to the water-permeable sheet. The reinforcing member according to claim 8, wherein the discharge holes of the hollow rod-shaped member are provided so that the hole diameter becomes larger and the hole spacing becomes shorter toward the back.

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