JP4551304B2 - Concrete wall reinforcing structure and concrete wall reinforcing method - Google Patents

Description

  The present invention relates to a reinforcing structure and a reinforcing method for a concrete wall that covers and reinforces the surface of the concrete wall.

  2. Description of the Related Art Conventionally, a panel structure that is used for the purpose of performing repair work in a short period of time on repair of a lining concrete surface of an aging tunnel is known (see Patent Document 1). The panel structure includes a pressure plate that is fixed in a face-to-face manner with a predetermined interval on the construction surface, and a bracket that is disposed on the back surface portion of the pressure plate and holds the reinforcing bars along the back surface of the pressure plate. And a reinforcing bar holder. Then, the reinforcing bars held by the bracket are embedded in the curable fluid filled between the pressure plate and the construction surface, and the pressure plate is integrated with the construction surface by curing of the curable fluid. It is a thing.

  Moreover, the structure which reinforces the human hole used for the use etc. which are formed in the ground and a power cable etc. are accommodated is known (refer patent documents 2 and 3). The human hole reinforcing structure described in Patent Document 2 includes a fiber sheet affixed to the inner surface of the human hole, a mortar applied on the fiber sheet, and a fiber sheet affixed on the mortar. The mortar is sandwiched between fiber sheets on both sides and is configured as a three-layer structure. The rehabilitation structure of the old manhole described in Patent Document 3 is a two-layer structure in which a fiber sheet is attached to the inner surface of the manhole and mortar is applied on the corner portion of the fiber sheet to form a corner portion and a corner portion. The central part between the parts is configured only as a fiber sheet. In addition, a method suitable for repairing a large-diameter sewer pipe or a rainwater pipe or a tunnel used for various transportations, which has been deteriorated, is known (see Patent Document 4). This method uses a plurality of reinforcing members that can be carried into a pipe line to assemble a hollow frame-shaped reinforcing body substantially along the inner surface of the existing pipe, and attaches a plurality of inner surface members to the inner side of the reinforcing body. After being assembled into a cylindrical shape along the tube length direction, a curable filler is injected into the gap between the inner surface member and the existing tube inner surface.

JP 2005-36500 A JP 2003-155755 A JP-A-2005-48399 JP 2001-311387 A

  However, in the panel structure described in Patent Document 1, a panel having a large area or a rebar having a large length is carried into a work space, and the structure is constructed by assembling the panel or the rebar having a large dimension. There is a need. For this reason, if it is a case where the favorable work environment which can perform the assembly operation | work of a large work space and a large dimension member smoothly like a tunnel can be ensured, efficiency improvement of reinforcement construction can be achieved. However, it is difficult to construct a concrete wall reinforcing structure in a working environment such as a human hole where the working space is narrow and it is difficult to carry in a member and it is difficult to assemble a large-sized member. On the other hand, in the human hole reinforcement structure described in Patent Document 2 and the rehabilitation structure of the old manhole described in Patent Document 3, a reinforcement structure can be constructed even in a narrow work space such as a human hole. Further, since the reinforcing bars are not provided and only the mortar and the fiber sheet are used, it is desired to further improve the strength. The repair method described in Patent Document 4 is a very effective method for repairing large-diameter sewer pipes and tunnels with a wide working environment, but has a long inner surface member and a relatively large reinforcement. Since a material is used, it may be difficult to apply in a narrow work space such as a human hole in terms of workability.

  In view of the above circumstances, the present invention can easily reinforce a concrete wall and ensure sufficient strength even in an environment where the work space is narrow or a large-sized member is difficult to assemble. An object of the present invention is to provide a reinforcing structure and a reinforcing method for a concrete wall.

Means and effects for solving the problems

The concrete wall reinforcing structure according to the present invention relates to a reinforcing structure that covers and reinforces the surface of a concrete wall.
And the concrete wall reinforcement structure which concerns on this invention has the following some features, in order to achieve the said objective. In other words, the present invention includes the following features alone or in combination as appropriate.

  The first feature of the concrete wall reinforcing structure according to the present invention for achieving the above object is that a reinforcing unit comprising a steel material and a panel is provided along the concrete wall in a state where the steel material faces the concrete wall surface. The steel material is formed by being repeatedly disposed, the steel material has a longitudinal direction and is formed in a flat plate shape, and the steel plate is joined to be bent with respect to the flat plate portion. And a connecting portion that is formed at an end portion in the longitudinal direction and is connected to another steel material, and the panel is attached to the steel material by being joined to the joint portion. And arranged along the steel material.

  According to this configuration, the dimensions of the steel material and the panel can be appropriately set in consideration of the ease of carrying-in work into the work space and the ease of assembly work within the work space. And, in the work space where steel materials and panels of a predetermined size are carried in, the steel materials are connected in order to form and arrange a steel material joint, and by joining and attaching the panels to the steel materials, A reinforcing structure in which a reinforcing unit including a panel is repeatedly arranged along a concrete wall can be easily formed. Therefore, the concrete wall can be easily reinforced and sufficient strength can be ensured even in an environment where the work space is narrow or where it is difficult to assemble large-sized members. Although the present invention can be applied to a concrete wall in a hole structure with a narrow work space such as a human hole, it is not necessarily limited to the hole structure, and it is difficult to assemble a large-sized member provided outside the hole structure. The present invention can also be applied to concrete walls in various working environments.

  The second feature of the concrete wall reinforcing structure according to the present invention is that the concrete wall is provided as an inner wall of a hole structure formed in the ground.

  According to this configuration, even a concrete wall in a hole structure with a narrow work space such as a human hole can be easily reinforced and sufficient strength can be secured.

  A third feature of the concrete wall reinforcing structure according to the present invention is that the panel is made of resin.

  According to this configuration, by using a steel material as a strength member and using a resin panel as a structural member disposed between the steel materials, it is possible to reduce the weight of the reinforcing unit, and to improve the efficiency of carrying-in work and assembly work. Can be planned.

  A fourth feature of the concrete wall reinforcing structure according to the present invention is formed between the concrete wall and the panel, and is at least one of a cement layer, a mortar layer, a concrete layer, and a resin layer. And further comprising an inner surface reinforcing layer having a layer.

  According to this configuration, it is possible to further increase the strength of the reinforcing structure by forming the inner surface reinforcing layer between the concrete wall and the panel.

  A fifth feature of the concrete wall reinforcing structure according to the present invention is that a water-impervious sheet that does not allow permeation of water is disposed between the steel material and the panel.

  According to this configuration, by providing the water-impervious sheet between the steel material and the panel, it is possible to prevent the groundwater from entering through the panels even if the concrete wall is cracked.

  A sixth feature of the concrete wall reinforcing structure according to the present invention is that the steel material is formed with an anchor through-hole through which an anchor embedded in the concrete wall is inserted in the flat plate portion. Is further provided.

  According to this configuration, since the steel material can be fixed by the anchor embedded in the concrete wall, it is possible to easily realize a reinforcing structure that is more firmly integrated with the concrete wall.

The method for reinforcing a concrete wall according to the present invention relates to a method for covering and reinforcing a surface of a concrete wall.
The concrete wall reinforcing method according to the present invention has several features as described below in order to achieve the above object. In other words, the present invention includes the following features alone or in combination as appropriate.

  The first feature of the method for reinforcing a concrete wall according to the present invention for achieving the above object is that a flat plate portion having a longitudinal direction and formed in a flat plate shape is bent with respect to the flat plate portion. A steel part having a joint part to which the panel is joined and a joint part formed at an end part in the longitudinal direction and connected to another steel material while being connected to the concrete wall by the connection part. A steel body connected body forming step for forming a steel body connected body by arranging the steel body connected body and a steel body connected body forming step are repeated a plurality of times to form a frame body in which a plurality of the steel body connected bodies are arranged in parallel. A frame body forming step, and a panel disposing step of attaching the plurality of panels to the steel part by joining the panels to the joint portion.

  According to this configuration, the dimensions of the steel material and the panel can be appropriately set in consideration of the ease of carrying-in work into the work space and the ease of assembly work within the work space. And, in the work space where steel materials and panels of a predetermined size are carried in, the steel materials are connected in order to form a steel material linked body, a plurality of the steel material linked bodies are arranged side by side, and the panel is joined to the steel material. By attaching, the concrete wall can be easily reinforced. Therefore, the concrete wall can be easily reinforced and sufficient strength can be ensured even in an environment where the work space is narrow or where it is difficult to assemble large-sized members. The present invention can be applied not only to a narrow hole structure such as a human hole, but also to a concrete wall provided outside the hole structure.

  The second feature of the concrete wall reinforcing method according to the present invention is that the concrete wall is provided as an inner wall of a hole structure formed in the ground.

  According to this configuration, even a concrete wall in a hole structure with a narrow work space such as a human hole can be easily reinforced and sufficient strength can be secured.

  A third feature of the method for reinforcing a concrete wall according to the present invention is that a cement layer, a mortar layer, a concrete layer, and a resin layer are formed by injecting and curing an injection material between the concrete wall and the panel. An inner surface reinforcing layer forming step of forming an inner surface reinforcing layer having at least one of the layers.

  According to this configuration, the high strength inner surface reinforcing layer including the steel material can be easily formed by injecting and curing the injection material between the concrete wall and the panel to form the inner surface reinforcing layer.

  According to a fourth feature of the method for reinforcing a concrete wall according to the present invention, in the inner surface reinforcing layer forming step, the fluidity of the injected material injected into the space between the concrete wall and the panel disappears. Injecting the injection material in a state where an injection material leakage prevention sheet for preventing the injection material from leaking between the panels is disposed between the steel material and the panel.

  According to this structure, by providing the injection material leakage prevention sheet, the injection material leaks from between the panels until the fluidity of the injection material injected into the space between the concrete wall and the panel disappears. This can be easily prevented.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The concrete wall reinforcing structure and the reinforcing method according to the embodiment of the present invention can be widely used for covering and reinforcing the surface of the concrete wall. For example, it can be applied to concrete walls provided as inner walls of hole structures formed in underground such as various pipes, manholes, caves, tunnels, etc. This is effective when reinforcing a concrete wall in a hole structure with a narrow working space. In addition, the reinforcing structure and the reinforcing method of the present embodiment can be effectively applied not only to the hole structure but also to a concrete wall in a work environment provided outside the hole structure and difficult to assemble a large-sized member. it can.

  FIG. 1 is a diagram for explaining an example of a human hole to which the present embodiment is applied, and the cable 103 that connects between the substation equipment 101 and the transmission line equipment 102 is arranged in the ground. It is sectional drawing which shows the hole structure 104 currently formed in FIG. The hole structure 104 includes a pipe line 105 in which a cable is laid and human holes 106 provided at a plurality of locations in the middle of the pipe line 105. The human hole 106 is provided with equipment for connecting the cable 103. FIG. 2 is a perspective view for explaining the state of the cable 103 arranged in the pipe line 105. For example, as shown in FIGS. 2A and 2B, the cable 103 is supported in a state where a plurality of cables 103 are gathered and arranged in parallel. In FIG. 2A, the cable 103 is supported by being inserted through a hole 109 formed by an AP pipe 110 disposed in protective concrete 108 provided on the foundation concrete 107. In FIG. 2B, the cable 103 is inserted and supported through a PFP pipe 112 supported by a support member 111 provided on the foundation concrete 107.

  FIG. 3 is a perspective view showing a state in which the concrete wall reinforcing structure 1 (hereinafter simply referred to as the reinforcing structure 1) according to the present embodiment is built in the human hole 106 together with a partially cutaway cross section. As shown in FIG. 1, the reinforcing structure 1 includes a plurality of steel materials 2, a plurality of panels 3, an inner surface reinforcing layer 4, and a water shielding sheet 5. FIG. 4 shows a perspective view of the reinforcing structure 1 with the inner surface reinforcing layer 4 removed. As shown in FIGS. 3 and 4, the reinforcing structure 1 is provided so as to cover the surface of the concrete wall 113 of the human hole 106. And the reinforcement structure 1 is formed by the reinforcement unit provided with such a steel material 2 and the panel 3 being repeatedly arrange | positioned along the concrete wall 113. As shown in FIG.

  FIG. 5 is a perspective view showing the steel material 2. As shown in FIG. 5, the steel material 2 includes a flat plate portion 11, a joint portion 12, and a connecting portion 13. The flat plate portion 11 has a longitudinal direction and is formed in a flat plate shape.

  The joining part 12 is provided so as to be bent with respect to the flat plate-like part 11, and the panel 3 is joined. In the steel material 2 illustrated in FIG. 5, the joint portions 12 are provided at a plurality of locations along the longitudinal direction of the flat plate portion 11, and the plurality of panels 3 are joined. In addition, the hole 12a is formed in the junction part 12, and the panel 3 is joined to the junction part 12 by fitting the projection 17 for joining provided in the panel 3 mentioned later to this hole 12a. become.

  The connecting portion 13 is provided as a hole formed in each end portion in the longitudinal direction of the flat plate-like portion 11. In a state where the connecting portions 13 are overlapped with other steel materials 2, the steel materials 2 are connected to each other through bolts or the like. FIG. 6 is a perspective view showing the connected steel members 2. As shown in FIG. 6, a pair of two steel members 2 in a state of being bent so that the joint portions 12 are oriented in opposite directions are connected to each other by a connecting portion 13 via a bolt 14. In this way, by arranging the plurality of steel materials 2 along the concrete wall 113 while sequentially connecting them with the connecting portion 13, a steel material connection body 15 as shown in FIG. 4 is formed, and the plurality of steel material connection bodies 15. Are arranged in parallel to form a frame body 16. In addition, it is not always necessary to use two steel materials as a pair. For example, one steel material in which two types of joints bent so as to be oriented in opposite directions to each other are sequentially connected to each other. The steel material 2 of FIG. 5 may be connected as it is.

  The panel 3 is attached to the steel material 2 by being joined to the joint portion 12 of the steel material 2. And this panel 3 is arrange | positioned along the steel materials 2 connected along with the steel materials 2 arrange | positioned in parallel (along the steel material connection body 15) while it is arrange | positioned between the steel materials 2 arrange | positioned in parallel, as well shown in FIG. The FIG. 7 is a perspective view of the panel 3. The panel 3 is formed as a square or rectangular resin flat plate. And the projection part 17 for joining is each provided in the corner vicinity (four corner vicinity part) of this panel 3 respectively. FIG. 8 is a cross-sectional view of the bonding projection 17, and the bonding projection 17 is constituted by a pair of locking pieces 19, 19 that define a groove 18. The joining projection 17 is fitted into the hole 12a of the joining portion 12 of the steel material 2 so that the groove 18 is crushed and the locking piece 19 is once bent and then elastically recovered and locked with the hole 12a. It has become. Thereby, the panel 3 is attached to the steel material 2.

  The inner surface reinforcing layer 4 shown in FIG. 3 is provided as a mortar layer formed between the concrete wall 113 and the panel 3. The inner surface reinforcing layer 4 is formed by injecting and curing mortar as an injection material between the concrete wall 113 and the panel 3 in a state where the frame body 16 is formed and the panel 3 is attached. In addition, it is possible to form the injection port 20 as shown by a two-dot chain line in FIG. The inner surface reinforcing layer 4 does not necessarily have to be formed as a mortar layer, and may have at least one of a cement layer, a concrete layer, a resin layer, and a mortar layer.

  FIG. 9 is a partially enlarged view of FIG. 4 viewed from the concrete wall 113 side. As shown in FIGS. 4 and 9, the water-impervious sheet 5 that does not allow water to pass through is disposed between the steel material 2 and the panel 3. The water shielding sheet 5 is attached so as to be sandwiched between the panel 3 and the steel material 2 when, for example, the projection 17 is joined to the joint 12 and the panel 3 is attached to the steel material 2 (see FIG. 9). In this case, the water shielding sheet is provided with a small hole through which the protrusion 17 of the panel 3 can penetrate. Furthermore, if necessary, a ring-shaped packing member may be interposed between the protruding portion 17 and the joining portion 12 to increase the water-stopping property.

  Next, the concrete wall reinforcing method of the present embodiment (hereinafter referred to as the reinforcing method of the present embodiment), which is also a method for constructing the reinforcing structure 1 described above, will be described. In the reinforcement method of this embodiment, each process of a steel-material coupling body formation process, a frame body formation process, a panel arrangement | positioning process, and an inner surface reinforcement layer formation process is performed.

  First, a necessary amount of the steel material 2, the panel 3, and the like are appropriately carried into the human hole 106 having the aged concrete wall 113 to be reinforced. When the steel material 2 is carried in, the steel material connection body formation process in which the steel material connection body 15 is formed by arranging the steel material 2 along the concrete wall 113 while being connected by the connecting portion 13 is performed. And the frame body formation process in which the frame body 16 by which the multiple steel material connection body 15 is arrange | positioned in parallel is formed by repeating this steel material connection body formation process in multiple times (refer FIG. 4).

  When the frame body 16 is formed (or when the frame body 16 is partially formed), the panel disposing step is performed in a state where the water shielding sheet 5 is subsequently disposed so as to cover the frame body 16. Is called. In this panel disposing step, the plurality of panels 3 are attached to the steel material 2 by being joined to the joint portion 12 of the steel material 2 and are arranged along the steel material connecting body 15.

  When the frame body forming step and the panel disposing step are completed and the state shown in FIG. 4 is reached, an inner surface reinforcing layer forming step is subsequently performed. In the inner surface reinforcing layer forming step, the inner surface reinforcing layer 4 formed as a mortar layer is formed by injecting mortar, which is an injection material, between the concrete wall 113 and the panel 3 through the injection port 20 and curing it. The At this time, the water-impervious sheet 5 is injected from the gap between the panels 3 until the fluidity disappears due to hardening of the injected material injected into the space between the concrete wall 113 and the panel 3. It will function as an injection material leakage prevention sheet that prevents the material from leaking out. Thus, in the inner surface reinforcing layer forming step, the injection material is injected in a state where the water shielding sheet 5 which is an injection material leakage prevention sheet is disposed between the steel material 2 and the panel 3. In addition, in the edge part of the reinforcement structure 1, it is desirable to give the mortar leakage prevention process with quick setting mortar etc. Further, as described above, the inner surface reinforcing layer forming step does not necessarily need to form a mortar layer, and an inner surface having at least one of a cement layer, a concrete layer, a resin layer, and a mortar layer. What is necessary is just to form a reinforcement layer.

  According to the reinforcing structure 1 and the reinforcing method of the present embodiment described above, the steel material 2 and the panel 3 are considered in consideration of the ease of carrying-in work into the manhole 106 that is a work space and the ease of assembly work in the work space. These dimensions can be set as appropriate. And in the work space (inside the human hole 106) carrying the steel material 2 and the panel 3 of a predetermined dimension, the steel material 2 is connected in order and the steel material connection body 15 is formed, and the plurality of the steel material connection bodies 15 are arranged. By arranging and attaching the panel 3 to the steel material 2, the reinforcing unit 1 including the steel material 2 and the panel 3 is easily formed with the reinforcing structure 1 in which the reinforcing unit is repeatedly arranged along the concrete wall 113. be able to. Therefore, the concrete wall can be easily reinforced and sufficient strength can be ensured even in an environment where the work space is narrow or where it is difficult to assemble large-sized members. Note that the present invention is suitable for reinforcing a concrete wall in a hole structure with a narrow work space such as a human hole 106, but is not necessarily limited to the hole structure, and assembling a large-sized member provided outside the hole structure. The present invention can also be applied to a concrete wall in a working environment where it is difficult to do so.

  Further, according to the reinforcing structure 1 and the reinforcing method of the present embodiment, the weight of the reinforcing unit can be reduced by using the steel material 2 as the strength member and using the resin panel 3 as the structural member disposed on the steel material 2. It is possible to improve the efficiency of carrying-in work and assembly work.

  Further, according to the reinforcing structure 1 and the reinforcing method of the present embodiment, by forming the inner surface reinforcing layer 4 between the concrete wall 113 and the panel 3, it is possible to further increase the strength of the reinforcing structure. Further, the injection material is injected and cured, and the inner surface reinforcing layer 4 can be easily formed.

  Moreover, according to the reinforcement structure 1, by providing the water-impervious sheet 5 between the steel material 2 and the panel 3, even if a crack occurs in the concrete wall, the groundwater enters through the panel 3 and enters. Can be prevented.

  Moreover, according to the reinforcement method of this embodiment, by providing the injection material leakage prevention sheet, the flow of the injection material injected into the space between the concrete wall 113 and the panel 3 disappears before the panel 3 disappears. It is possible to easily prevent the injected material from leaking out.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. . For example, the following modifications may be made.

(1) In the present embodiment, the case where a water shielding sheet is provided has been described. However, if the purpose is to serve as an injection material leakage prevention sheet, the sheet may not necessarily be a water shielding sheet. For example, when the injection material is mortar, a fine woven fabric may be used. FIG. 10 is a perspective view showing a modified example in which the water shielding sheet is not provided, and corresponds to FIG. Thus, the reinforcement structure in which the water-proof sheet | seat is not provided may be sufficient. Further, the inner surface reinforcing layer is not necessarily provided.

(2) FIG. 11 is a perspective view showing a modification of the steel material. 11 differs from the steel material 2 shown in FIG. 5 in that an anchor mounting portion 21 is further provided. The anchor attaching portion 21 is provided so as to be bent with respect to the flat plate-like portion 11 and has an anchor through hole 22 through which an anchor (not shown) embedded in the concrete wall 113 is inserted. By providing the anchor attachment portion 21 in this way, the steel material 2a can be fixed by the anchor embedded in the concrete wall 113, so that a reinforcing structure that is more firmly integrated with the concrete wall 113 is provided. It can be easily realized. In addition, when a plurality of steel material links 15 formed by connecting the steel materials 2 are arranged side by side, the steel material links 15 may be connected with bolts, nuts, or the like, as shown in FIG.

(3) The shape of the steel material or panel is not limited to that described in the present embodiment, and various design changes can be made as long as it is described in the claims.

It is a figure for demonstrating the human hole to which the reinforcement structure of the concrete wall which concerns on one embodiment of this invention is applied. It is a perspective view for demonstrating the state of the cable arrange | positioned at the pipe line shown in FIG. It is a perspective view which shows the state in which the reinforcement structure of the concrete wall which concerns on one embodiment of this invention is constructed | assembled in the human hole with a partially cutaway cross section. FIG. 4 is a perspective view showing a state where an inner surface reinforcing layer is removed from the reinforcing structure shown in FIG. 3. It is a perspective view of the steel material shown in FIG. It is a perspective view which shows the state with which the steel materials shown in FIG. 5 were connected. It is a perspective view of the panel shown in FIG. It is sectional drawing of the projection part for joining in the panel shown in FIG. FIG. 5 is a partially enlarged view of FIG. 4. It is a perspective view for demonstrating the reinforcement structure of the concrete wall which concerns on a modification. It is a perspective view which shows the steel material which concerns on a modification. It is a perspective view which expands and partially shows the reinforcement structure of the concrete wall which concerns on a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Reinforcement structure of concrete wall 2 Steel material 3 Panel 11 Flat part 12 Joint part 13 Connection part 15 Steel material connection body 16 Frame body

Claims (10)

A concrete wall reinforcement structure for covering and reinforcing a concrete wall surface,
A reinforcing unit comprising a steel material and a panel is formed by being repeatedly disposed along the concrete wall in a state where the steel material faces the concrete wall surface,
The steel material has a longitudinal direction and a flat plate-like portion formed in a flat plate shape, a joint portion that is provided so as to be bent with respect to the flat plate-like portion, and an end in the longitudinal direction. A connecting portion formed on the portion and connected to another steel material,
The said panel is attached to the said steel material by being joined with respect to the said junction part, and is arrange | positioned along the said steel material, The reinforcement structure of the concrete wall characterized by the above-mentioned.   2. The concrete wall reinforcing structure according to claim 1, wherein the concrete wall is provided as an inner wall of a hole structure formed in the ground.   The reinforcing structure for a concrete wall according to claim 1 or 2, wherein the panel is made of resin.   It further comprises an inner surface reinforcing layer formed between the concrete wall and the panel and having at least one of a cement layer, a mortar layer, a concrete layer, and a resin layer. The concrete wall reinforcing structure according to any one of claims 1 to 3.   5. The concrete wall reinforcing structure according to claim 1, wherein a water-impervious sheet that does not allow permeation of water is disposed between the steel material and the panel.   The said steel material is further provided with the anchor attachment part in which the through-hole for anchors in which the anchor embed | buried under the said concrete wall is penetrated in the said flat plate-shaped part is provided. Item 6. The concrete wall reinforcement structure according to any one of items 5 to 6. A method of reinforcing a concrete wall that covers and reinforces the surface of a concrete wall,
A flat plate-like portion having a longitudinal direction and formed in a flat plate shape, a joint portion that is provided so as to be bent with respect to the flat plate-like portion, and a panel is joined to the flat plate portion. A steel material connected body forming step of forming a steel material connected body by arranging a steel material having a connecting part connected to another steel material along the concrete wall while being connected by the connecting part;
A frame body forming step of forming a frame body in which a plurality of the steel material linked bodies are arranged in parallel by repeating the steel material linked body forming step a plurality of times;
A panel disposing step of attaching the plurality of panels to the steel members by joining the joints;
A method for reinforcing a concrete wall, comprising:   The method for reinforcing a concrete wall according to claim 7, wherein the concrete wall is provided as an inner wall of a hole structure formed in the ground.   An inner surface reinforcing layer having at least one of a cement layer, a mortar layer, a concrete layer, and a resin layer is formed by injecting and curing an injection material between the concrete wall and the panel. The method for reinforcing a concrete wall according to claim 7 or 8, further comprising an inner surface reinforcing layer forming step. In the inner surface reinforcing layer forming step, the injection material is prevented from leaking from between the panels until the fluidity of the injection material injected into the space between the concrete wall and the panel disappears. The method for reinforcing a concrete wall according to any one of claims 7 to 9, wherein the injection material is injected in a state in which an injection material leakage prevention sheet is disposed between the steel material and the panel. .

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