Wall-mesh composite reinforcing structure, construction method and design method

Abstract

The application relates to a wall-mesh composite reinforcing structure, a construction method and a design method, the wall-mesh composite reinforcing structure comprising a wall structure, a mesh structure and a filling body, the wall structure comprising a retaining plate, the wall structure being used for bearing a residual soil pressure after the retaining plate and restraining a late-stage horizontal deformation of the mesh structure, the residual soil pressure being the total soil pressure minus the soil pressure borne by the mesh structure, a gap being arranged between the retaining plate and the mesh structure, and the filling body being used for filling the gap. According to the wall-mesh composite reinforcing structure, the stress and deformation generated in the late stage of the mesh structure can be effectively transmitted to the wall structure by filling the filling body between the wall structure and the mesh structure, the stress and deformation of the mesh structure and the wall structure are cooperated, the stress bearing of the mesh structure can be fully utilized, the wall structure is optimized, and the engineering investment is greatly saved. The wall-mesh composite reinforcing structure is simple in structure, clear in stress bearing and good in effect.

Description

Technical Field

[0001] This invention relates to the field of geotechnical engineering technology, and in particular to a wall-reinforced composite reinforcement structure, its construction method, and its design method. Background Technology

[0002] Gravity retaining walls, cantilever retaining walls, and pile-slab retaining walls are widely used in embankment slope reinforcement projects due to their simple design and construction, and good stability and deformation control. However, when the slope height increases or reaches a significant level, the use of traditional structures is severely limited or their economic efficiency becomes extremely poor. Reinforced soil retaining walls offer good seismic performance and are economical, and are frequently used in projects with less stringent deformation control requirements. However, their use is limited when both stability and deformation control requirements are high. With the continuous increase in embankment slope height and the increasing demands for deformation control, the adaptability and economic efficiency of existing slope retaining structures have become increasingly prominent, necessitating further improvement and development of traditional retaining structures.

[0003] In practical engineering, "wall + reinforcement" composite structures have been applied, such as reinforced pile-slab walls and reinforced cantilever retaining walls. In principle, this combination should effectively leverage the respective advantages of both the wall and the reinforcement. However, extensive engineering surveys, data analysis, and field tests have revealed that current "wall + reinforcement" projects merely involve simple structural superposition. Typically, the wall structure bears all earth pressure, while the reinforcement is used for safety reserves. The wall and reinforcement fail to achieve coordinated load-bearing, or the reinforcement's load-bearing capacity is not effectively utilized. Due to the lack of reasonable construction and design methods, existing wall + reinforcement composite structures lack good synergistic effects and economic efficiency. Different construction methods result in varying degrees of deformation in the reinforcement, leading to different load-bearing capacities. If the reinforcement cannot deform under the constraint of the wall structure, it cannot exert its load-bearing capacity. Only when the wall structure fails or undergoes excessive deformation can the reinforcement exert a better load-bearing capacity. However, at this point, the load-bearing capacities of the wall and reinforcement can no longer synergize. Therefore, wall + reinforcement composite structures lack effective application and economic efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the problem that the wall and reinforcement in the existing wall-reinforcement composite structure are difficult to achieve coordinated stress distribution, and to provide a wall-reinforcement composite reinforcement structure, construction method, and design method.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present invention provides a wall-reinforced composite reinforcement structure, comprising a wall structure, a reinforcement structure, and a filling body. The wall structure includes a retaining plate, which is used to bear the remaining earth pressure behind the retaining plate and to constrain the later horizontal deformation of the reinforcement structure. The remaining earth pressure is the total earth pressure minus the earth pressure already borne by the reinforcement structure. The reinforcement structure is a load-bearing structure with a self-stability safety factor between 1.1 and 1.3, that is, the load-bearing capacity of the reinforcement in the reinforcement structure is 75%-90%. There is a gap between the retaining plate and the reinforcement structure, and the filling body is used to fill the gap. The maximum deformation of the wall structure is less than the later deformation generated when the reinforcement structure reaches its maximum load-bearing capacity (the deformation generated when the load-bearing capacity of the reinforcement is 10%-25% of its remaining load-bearing capacity).

[0007] The wall-reinforced composite reinforcement structure described in this invention first undergoes unrestrained deformation of the reinforcing bars in the reinforcement structure, fully utilizing their load-bearing capacity while reserving a certain amount of reserve load-bearing capacity for later use. By subsequently filling the space between the wall structure and the reinforcement structure with a filler, the forces and deformations generated by the reinforcement structure in the later stages can be effectively transferred to the wall structure. This achieves coordinated force and deformation between the reinforcement and wall structures, fully utilizing the load-bearing capacity of the reinforcement structure and limiting its large-scale later deformation, thereby optimizing the wall structure and significantly saving on project investment. This wall-reinforced composite reinforcement structure has a simple construction, clear force distribution, and good performance.

[0008] As a preferred technical solution of the present invention, the wall structure is a reinforced concrete pile-slab retaining wall or a cantilever retaining wall.

[0009] As a preferred technical solution of the present invention, the reinforced structure includes reinforcing bars, a filter layer and backfill soil. The reinforcing bars are arranged layer by layer in the backfill soil, and the reinforcing bars wrap around the filter layer to form a back-wrapped reinforcing bar. The filter layer is located on the side of the backfill soil close to the retaining plate.

[0010] As a preferred technical solution of the present invention, the filling body is fine stone concrete or fluid soil.

[0011] As a preferred technical solution of the present invention, the retaining plate is provided with a plurality of drainage holes, and a drainage pipe is provided in the drainage holes, the drainage pipe extending into the reinforcing structure.

[0012] As a further preferred technical solution of the present invention, a water-resistant layer is filled or poured below the elevation of the lowest drainage hole, and one side of the water-resistant layer is connected to the retaining plate, while the other side extends beyond the filter layer of the reinforcement structure.

[0013] Secondly, the present invention also provides a construction method for a wall-reinforced composite reinforcement structure, used for constructing the wall-reinforced composite reinforcement structure as described in any of the above claims, the method comprising the following steps:

[0014] S1. Construct the wall structure, leaving a gap between the inner side of the retaining plate and the reinforcing structure, and the size of the gap is not less than the predicted horizontal deformation value of the top of the reinforcing structure plus 10cm. A row of drainage holes is provided at the bottom of the retaining plate, and several drainage holes are provided on the wall surface of the retaining plate. The drainage holes have a drainage slope.

[0015] S2. Fill or pour a waterproof layer below the elevation of the lowest row of drainage holes, wherein one side of the waterproof layer is connected to the retaining plate and the other side extends beyond the filter layer of the reinforcement structure.

[0016] S3. Construct the reinforcement structure in layers, observe the horizontal deformation of the top outer side of the reinforcement structure, and when the deformation rate tends to stabilize or the gap between the reinforcement structure and the retaining plate is close to 10cm, install a drainage pipe at the drainage hole position and insert the drainage pipe into the filter layer.

[0017] S4. Pour the filling material into the gap and compact it by vibration in layers.

[0018] The construction method of the wall-reinforced composite reinforcement structure described in this invention involves reserving sufficient deformation space between the wall structure and the reinforcement structure, allowing the reinforcement structure to fully deform and perform its load-bearing function. Then, the filling material is filled between the wall structure and the reinforcement structure, effectively transferring the stress and deformation generated by the reinforcement structure to the wall structure. The drainage pipe and the waterproof layer ensure that infiltrated water from the filter layer can be effectively discharged, preventing water accumulation within the fill soil. This method clarifies the construction sequence and key technical requirements, achieving coordinated stress and deformation of the reinforcement structure and the wall structure, fully utilizing the load-bearing capacity of the reinforcement structure, thereby optimizing the wall structure and significantly saving project investment.

[0019] As a preferred technical solution of the present invention, in step S1, the value of the gap is 0.2m-0.3m, and not less than the maximum deformation of the rib structure +10cm.

[0020] As a preferred technical solution of the present invention, in step S2, the width of the waterproof layer is not less than 0.3m.

[0021] Thirdly, the present invention also provides a design method for a wall-reinforced composite reinforcement structure, used to design a wall-reinforced composite reinforcement structure as described in any of the above claims, the method comprising the following steps:

[0022] A1. Calculate the total horizontal earth pressure E behind the retaining plate. x E x Including seismic force, train load, and superstructure load in the later stages;

[0023] A2. Calculate the horizontal earth pressure E within the height range of the reinforced structure behind the retaining plate. J E J Excluding all loads above the height of the aforementioned reinforced structure, such as seismic forces and train loads;

[0024] A3. Calculate the horizontal earth pressure E borne by the wall structure. q E q =E x -λE J λ is the ratio of the actual stress on the reinforcement to the calculated stress.

[0025] A4. Based on the horizontal earth pressure E J The length and spacing of the reinforcing bars in the rib structure are calculated.

[0026] A5. Calculate the total deformation s of the reinforced structure under the action of seismic force, train load, and subsequent superstructure load. j ;

[0027] A6. Calculate the maximum allowable deformation s of the wall structure. q s q =s j -s j ', where s j 'This refers to the amount of deformation that the reinforcing structure has undergone during the construction of the filling body;'

[0028] A7. According to the horizontal earth pressure E q and the maximum allowable deformation s of the top of the wall structure q Structural and reinforcement design of the wall structure is carried out.

[0029] The design method of the wall-reinforced composite reinforcement structure described in this invention is simple to operate, can ensure that the stress calculation of the wall structure and the reinforcement structure is reasonable, and can effectively control the stability and deformation of the wall-reinforced structure, which is conducive to the promotion and use of this method.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] 1. The wall-reinforced composite reinforcement structure of the present invention first undergoes unrestrained deformation of the reinforcing bars in the reinforcement structure, fully utilizing the load-bearing capacity of the reinforcing bars and reserving a certain amount of reserve load-bearing capacity for later use. By filling the space between the wall structure and the reinforcement structure, the stress and deformation generated by the reinforcement structure in the later stage can be effectively transferred to the wall structure, realizing the coordinated stress and deformation of the reinforcement structure and the wall structure. This can fully utilize the load-bearing capacity of the reinforcement structure and limit the large deformation of the reinforcement structure in the later stage, thereby optimizing the wall structure and significantly saving project investment. The wall-reinforced composite reinforcement structure has a simple construction, clear stress distribution, and good effect.

[0032] 2. The construction method of the wall-reinforced composite reinforcement structure of the present invention, by reserving sufficient deformation space between the wall structure and the reinforcement structure, allows the reinforcement structure to fully deform and perform its load-bearing function. Then, the filling material is filled between the wall structure and the reinforcement structure, so that the stress and deformation generated by the reinforcement structure in the later stage can be effectively transferred to the wall structure. By setting the drainage pipe and the waterproof layer, the infiltration water of the filter layer can be effectively discharged, preventing water accumulation inside the backfill soil. This method clarifies the construction sequence and key technical requirements, realizes the coordinated stress and deformation of the reinforcement structure and the wall structure, can fully utilize the load-bearing capacity of the reinforcement structure, thereby optimizing the wall structure and significantly saving project investment.

[0033] 3. The design method of the wall-reinforced composite reinforcement structure described in this invention is simple to operate, can ensure that the stress calculation of the wall structure and the reinforcement structure is reasonable, and can effectively control the stability and deformation of the wall-reinforced structure, which is conducive to the promotion and use of this method. Attached Figure Description

[0034] Figure 1 This is a cross-sectional view of a wall-reinforced composite reinforcement structure.

[0035] The markings in the diagram are: 11-Pile structure, 12-Retaining plate, 21-Reinforcing material, 22-Reverse reinforcing material, 23-Reverse filter layer, 3-Filling body, 4-Backfill soil, 5-Waterproof layer, 6-Drainage pipe. Detailed Implementation

[0036] The present invention will now be described in detail with reference to the accompanying drawings.

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0038] Example 1

[0039] like Figure 1 As shown, the wall-reinforced composite reinforcement structure of the present invention includes a wall structure, a reinforcement structure and a filling body 3.

[0040] The wall structure is a reinforced concrete pile-slab retaining wall or a cantilever retaining wall. When the wall structure is a pile-slab retaining wall, it includes a pile structure 11 and a retaining plate 12. When the wall structure is a cantilever retaining wall, the vertical plate of the cantilever retaining wall is the retaining plate 12. The retaining plate 12 of the wall structure should preferably be a vertical wall surface. Figure 1 An example is provided of a pile-slab retaining wall structure, wherein the pile structure 11 extends into the ground, the retaining slab 12 abuts against the pile structure 11, the retaining slab 12 is provided with a plurality of drainage holes, and drainage pipes 6 are provided in the drainage holes, the drainage pipes 6 extending into the reinforced structure; the wall structure is used to bear the remaining earth pressure behind the retaining slab 12 and to constrain the subsequent horizontal deformation of the reinforced structure, the remaining earth pressure being the total earth pressure minus the earth pressure already borne by the reinforced structure.

[0041] The reinforced structure includes reinforcing bars 21, a filter layer 23, and fill soil 4. The reinforced structure is a load-bearing structure with a self-stability safety factor between 1.1 and 1.3, meaning the load-bearing capacity of the reinforcing bars 21 is 75%-90%. The reinforcing bars 21 are arranged layer by layer in the fill soil 4, wrapping around the filter layer 23 to form a wrapping reinforcing bar 22. The filter layer 23 is located on the side of the fill soil 4 closest to the retaining plate 12. A waterproof layer is constructed or poured below the elevation of the lowest drainage hole. 5. The waterproof layer 5 is connected to the retaining plate 12 on one side and extends beyond the filter layer 23 on the other side; the reinforced structure is used to bear most of the soil pressure of the fill soil 4 under static conditions, the reinforced material 21 has good economic efficiency, and the filter layer 23 provides a drainage channel for surface water infiltrating into the fill soil 4; the maximum deformation of the wall structure is less than the later deformation generated when the reinforced structure reaches its maximum bearing capacity (the deformation value generated when the bearing capacity of the reinforced material 21 is used to exert the remaining 10%-25% of its bearing capacity).

[0042] There is a gap between the retaining plate 12 and the reinforcing structure. The filling body 3 is used to fill the gap, so that the stress and deformation generated by the reinforcing structure in the later stage can be effectively transferred to the wall structure. The filling body 3 is fine stone concrete or fluid soil, which avoids the construction difficulties and insufficient compaction problems in narrow spaces. The grade of the fine stone concrete is not less than C20. The fluid soil is a mixture of cement and other curing agents + soil + water to form a mixture with good fluidity and high molding strength. The uniaxial saturated compressive strength of the fluid soil after molding is not less than 1.5 MPa.

[0043] The wall-reinforced composite reinforcement structure described in this embodiment first undergoes unrestrained deformation of the reinforcing bars 21 in the reinforcement structure. The bearing capacity of the reinforcing bars 21 is fully utilized, and a certain reserve bearing capacity is reserved for later stages. By filling the gap between the wall structure and the reinforcement structure with the filling body 3, the stress and deformation generated by the reinforcement structure in the later stages can be effectively transferred to the wall structure. This achieves coordinated stress and deformation of the reinforcement structure and the wall structure, which can fully utilize the stress-bearing capacity of the reinforcement structure and limit the large later deformation of the reinforcement structure, thereby optimizing the wall structure and significantly saving project investment. This wall-reinforced composite reinforcement structure has a simple construction, clear stress distribution, and good effect.

[0044] Example 2

[0045] like Figure 1 As shown, the construction method of the wall-reinforced composite reinforcement structure of the present invention is used to construct the wall-reinforced composite reinforcement structure as described in Example 1. The method includes the following steps:

[0046] S1. The wall structure is positioned in plan, and the reinforced concrete of the wall structure is constructed. A gap of 0.2m-0.3m is reserved between the inner side of the retaining plate 12 and the reinforced structure, and the size of the gap is not less than the predicted maximum horizontal deformation of the top of the reinforced structure plus 10cm. A row of drainage holes is provided at the bottom of the retaining plate 12. The elevation of the row of drainage holes from the ground outside the bottom of the wall structure is 1m-2m. Several drainage holes are provided on the wall surface of the retaining plate 12. The drainage holes are arranged in a quincunx pattern with a spacing of 2m-3m on the wall surface. The drainage holes have an outward drainage slope of 4%.

[0047] The 0.2m-0.3m gap between the inner side of the wall structure and the reinforcing structure allows the reinforcing structure to deform, enabling the reinforcing material 21 to withstand the soil pressure. The gap is basically coordinated with the maximum deformation at the top of the reinforcing structure; otherwise, the top, which exhibits the maximum deformation, would encroach on the space of the retaining plate 12, meaning the reinforcing material 21 would not deform and would not be able to effectively withstand the soil pressure. The reserved drainage hole can avoid the problems of opening holes in the retaining plate 12 later, which would affect structural safety and cause construction difficulties.

[0048] S2. Fill or pour a waterproof layer 5 below the elevation of the lowest row of drainage holes. The width of the waterproof layer 5 shall not be less than 0.3m. The outer side of the waterproof layer 5 shall be connected to the retaining plate 12, and the inner side shall be wider than the filter layer 23, and the width shall not be less than 0.2m wider than the filter layer 23, so as to ensure that the infiltrated water of the filter layer 23 can be effectively discharged and that water does not accumulate inside the backfill soil 4.

[0049] S3. The reinforcement structure is constructed in layers inside the retaining wall 12. The reinforcement 21 wraps around the filter layer 23 for a length of not less than 2m and is fixed with geotextile rods. The filter layer 23 has a width of not less than 0.2m. The filter layer 23 is made of geotextile bags containing not more than 5% fine particles, which are used to wrap washed gravel or pebbles. The permeability coefficient of the geotextile bags and the washed gravel or pebbles is not less than 10. -5 The horizontal deformation of the outer side of the top of the reinforced structure is observed at m / s. When the deformation rate tends to stabilize or the gap between the reinforced structure and the retaining plate 12 is close to 10cm, a drainage pipe 6 is installed at the drainage hole. The drainage pipe 6 is made of PVC material. The outer end of the drainage pipe 6 extends into the drainage hole for no less than 5cm, and the inner end of the drainage pipe 6 is inserted into the filter layer 23 for no less than 10cm.

[0050] The deformation of the reinforcing structure is basically stable, which can fully utilize the tensile strength of the reinforcing material 21, thereby reducing the residual soil pressure transmitted to the wall structure and saving the cost of the wall structure. When the gap between the wall structure and the reinforcing structure is close to 10cm, the drainage pipe 6 is installed in time to facilitate the timely and convenient construction of the filling body 3 later. If the gap is too small, the construction of the filling body 3 will become difficult, especially when the wall height of the wall structure is large.

[0051] S4. Pour the filling material 3 into the gap and compact it by vibration in layers.

[0052] The maximum particle size of the flowing filling material 3 is no greater than 3 cm to ensure effective pouring and vibration compaction. The filling material 3 must have sufficient strength to effectively constrain the wall structure and the reinforcing structure, limiting excessive deformation of the reinforcing structure. The fine stone concrete grade is no less than C20, and the uniaxial saturated compressive strength of the fluid soil is no less than 1.5 MPa. A concrete grade that is too low is not conducive to vibration compaction, so it is required to be no less than C20. The fluid soil has good vibration density, and its strength only needs to be greater than the strength of the filter layer 23.

[0053] This embodiment describes a construction method for a wall-reinforced composite reinforcement structure. By reserving sufficient deformation space between the wall structure and the reinforcement structure, the reinforcement structure can fully deform and exert its load-bearing capacity. Then, the filling body 3 is filled between the wall structure and the reinforcement structure, so that the stress and deformation generated by the reinforcement structure can be effectively transferred to the wall structure. By setting the drainage pipe 6 and the waterproof layer 5, the infiltrated water of the filter layer 23 can be effectively discharged, preventing water accumulation inside the backfill soil 4. This method clarifies the construction sequence and key technical requirements, realizes the coordinated stress and deformation of the reinforcement structure and the wall structure, and can fully utilize the load-bearing capacity of the reinforcement structure, thereby optimizing the wall structure and significantly saving project investment.

[0054] Example 3

[0055] like Figure 1 As shown, the design method of the wall-reinforced composite reinforcement structure of the present invention is used to design the wall-reinforced composite reinforcement structure as described in Example 1. The method includes the following steps:

[0056] A1. Calculate the total horizontal earth pressure E after the retaining plate 12 is installed according to the "Code for Design of Railway Retaining Structures". x E x This includes seismic forces, train loads, and superstructure loads.

[0057] A2. Calculate the horizontal earth pressure E within the height range of the reinforcing structure after the retaining plate 12 according to the "Code for Design of Railway Retaining Structures". J E J This excludes all loads above the height of the aforementioned reinforced structure, such as seismic forces and train loads.

[0058] A3. Calculate the horizontal earth pressure E borne by the wall structure. q E q =E x -λE J λ is the ratio of the actual stress on the reinforcement to the calculated stress, which can be obtained through field measurement, model test or numerical simulation.

[0059] Obtaining λ is crucial and cannot be done by taking a calculated value, as the calculated value is affected by many factors such as material, filler type, and construction compaction.

[0060] A4. Based on the horizontal earth pressure E J The length and spacing of the reinforcing bars in the rib structure are calculated.

[0061] A5. Calculate the total deformation s of the reinforced structure under the action of seismic force, train load, and subsequent superstructure load. j .

[0062] A6. Calculate the maximum allowable deformation s of the wall structure. q s q =s j -s j ', where s j 'This represents the amount of deformation that the reinforcing structure has undergone during the construction of the filling body.

[0063] A7. According to the horizontal earth pressure E q and the maximum allowable deformation s of the top of the wall structure q Structural and reinforcement design of the wall structure is carried out.

[0064] The design method of the wall-reinforced composite reinforcement structure described in this embodiment is simple to operate, can ensure that the stress calculation of the wall structure and the reinforcement structure is reasonable, and can effectively control the stability and deformation of the wall-reinforced structure, which is conducive to the promotion and use of this method.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A construction method for a wall-reinforced composite reinforcement structure, characterized in that, A wall-reinforced composite reinforcement structure is used for construction, comprising a wall structure, a reinforcement structure, and a filling body (3). The wall structure includes a retaining plate (12), which is used to bear the remaining earth pressure behind the retaining plate (12) and constrain the later horizontal deformation of the reinforcement structure. The remaining earth pressure is the total earth pressure minus the earth pressure already borne by the reinforcement structure. The reinforcement structure is a load-bearing structure with a self-stability safety factor between 1.1 and 1.

3. There is a gap between the retaining plate (12) and the reinforcement structure. The filling body (3) is used for... To fill the gap, the maximum deformation of the wall structure is less than the later deformation generated when the reinforcement structure reaches its maximum bearing capacity. The filling body (3) is fine stone concrete or fluid soil. The reinforcement structure includes reinforcement (21), filter layer (23) and fill soil (4). The reinforcement (21) is arranged layer by layer in the fill soil (4). The reinforcement (21) wraps around the filter layer (23) and forms a wrapping reinforcement (22). The filter layer (23) is located on the side of the fill soil (4) close to the retaining plate (12). The method includes the following steps: S1. Construct the wall structure, and leave a gap between the inner side of the retaining plate (12) and the reinforcement structure. The size of the gap is not less than the predicted horizontal deformation value of the top of the reinforcement structure plus 10cm. The wall surface of the retaining plate (12) is provided with several drainage holes, and the drainage holes have a drainage slope. S2. Fill or pour a waterproof layer (5) below the elevation of the lowest row of drainage holes. One side of the waterproof layer (5) is connected to the retaining plate (12), and the other side extends beyond the filter layer (23). S3. The reinforcement structure is constructed in layers. The horizontal deformation of the top outer side of the reinforcement structure is observed. When the deformation rate tends to stabilize or the gap between the reinforcement structure and the retaining plate (12) reaches 10cm, a drainage pipe (6) is installed at the drainage hole position. The drainage pipe (6) is inserted into the filter layer (23). S4. The filling material (3) is poured into the gap and compacted by vibration in layers. The filling material (3) has sufficient strength to effectively constrain the wall structure and the reinforcing structure, and to limit the excessive deformation of the reinforcing structure.

2. The construction method of the wall-reinforced composite reinforcement structure according to claim 1, characterized in that, The wall structure is a reinforced concrete pile-slab retaining wall or a cantilever retaining wall.

3. The construction method of the wall-reinforced composite reinforcement structure according to claim 1, characterized in that, In step S1, the value of the gap is 0.2m-0.3m.

4. The construction method of the wall-reinforced composite reinforcement structure according to any one of claims 1-3, characterized in that, In step S2, the width of the waterproof layer (5) is not less than 0.3m.

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