Super-thick raft post-cast strip shear wall dam intercepting device and construction method thereof

Abstract

The invention relates to the technical field of building construction, and discloses an ultra-thick raft post-cast strip shear wall dam intercepting device and a construction method thereof.The ultra-thick raft post-cast strip shear wall dam intercepting device comprises a raft body and a first waterproof layer laid on the raft body, and a brick blank film is vertically arranged on the first waterproof layer; the brick forming die is located on the inner side of the raft main body, and a shear wall body is fixedly connected between the outer side wall of the raft main body and the outer side wall of the brick forming die; a cavity is formed in the bottom of the brick forming die, and an internal corner reinforcing piece is arranged in the cavity of the brick forming die. According to the super-thick raft post-cast strip shear wall dam intercepting device, the internal corner reinforcing piece provides an additional protection layer for the throwing joint position of the first waterproof layer, the throwing joint part can be covered and protected, physical damage in the construction process is reduced, the sealing performance of the joint position is ensured, water is prevented from permeating through the construction joint or the post-cast strip position, and the service life of the post-cast strip is prolonged. And the quality of a water interception project of an offshore wind plant is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an intercepting device for a shear wall dam with an ultra-thick raft slab post-cast belt and a construction method thereof. Background Art

[0002] In offshore wind farms, the application of ultra-thick raft slabs provides a stable supporting foundation for wind turbine towers to prevent tilting or sinking caused by geological changes in the seabed; the post-cast joint is a temporary construction joint reserved during the construction process. By pouring at the appropriate time, the early shrinkage stress of concrete is released to enhance the integrity of the structure; the shear wall dam structure is set perpendicular to the ultra-thick raft slab, mainly used to resist the huge lateral force on the wind turbine tower caused by strong winds or waves, and transfer the lateral force to the ultra-thick raft slab, which is then dispersed to the foundation by the ultra-thick raft slab, thereby ensuring the safety and stability of wind farm facilities in complex stress environments.

[0003] Since the underground structure of the building is buried deep and is immersed in seawater or groundwater for a long time, leakage problems are prone to occur. Among them, the high-frequency leakage locations at the bottom of the underground structure are mostly the extended part of the raft foundation and the waterproof part of the shear wall dam. During the waterproof construction of the extended part of the traditional raft foundation and the shear wall dam, the foundation waterproofing membrane is usually thrown on the top surface of the raft foundation brick membrane, and there is no special treatment at the internal corner of the structure. In the subsequent construction process, the thrown waterproofing membrane is easily disturbed and damaged by construction operations such as the erection of ground-based scaffolding, external wall reinforcement, and formwork installation. It is difficult to protect the location where the waterproofing membrane is thrown, which causes great trouble to the waterproofing quality management, thus leaving hidden dangers for the water interception project. Summary of the invention

[0004] In view of the above problems existing in the prior art, the present invention is proposed.

[0005] The present application provides an interception device for a shear wall dam with an ultra-thick raft slab post-cast strip, the purpose of which is to solve the problem that when waterproofing the extended part of the traditional raft foundation and the shear wall dam part, it is difficult to protect the joint position of the waterproof membrane, thereby leaving hidden dangers in the water interception project.

[0006] The technical solution of the present invention is: an ultra-thick raft post-cast belt shear wall dam interception device, comprising a raft body and a first waterproof layer laid on the raft body, a brick membrane is vertically arranged on the first waterproof layer, and the brick membrane is located on the inner side of the raft body, and a shear wall is fixedly connected between the outer side wall of the raft body and the outer side wall of the brick membrane; A cavity is provided at the bottom of the brick membrane, a recessed corner reinforcement piece is arranged in the cavity of the brick membrane, and the recessed corner reinforcement piece is in contact with the top surface of the first waterproof layer.

[0007] Furthermore, a groove is provided on the top surface of the raft body, and the bottom surface of the first waterproof layer is fixedly connected to the top surface of the raft body; The internal angle reinforcement comprises a T-shaped plate arranged on the inner top wall of the brick membrane, and fixed blocks are symmetrically arranged at the bottom of the T-shaped plate. The shape of the fixed blocks is adapted to the groove, and a water-swellable water stop strip is arranged between the two fixed blocks.

[0008] Furthermore, an elastic plate is provided between the water-swellable waterstop strip and the T-shaped plate, the elastic plate is in a "W" shape as a whole, and two ends of the elastic plate are respectively inserted into the inner sides of the fixing blocks on both sides.

[0009] Furthermore, the water-swellable waterstop strip is in the shape of an anchor as a whole, and the top end of the water-swellable waterstop strip is inserted into the inner side of the elastic plate.

[0010] Furthermore, a second waterproof layer is laid on the brick membrane, and the top of the second waterproof layer is bent at a right angle and rolled back on the side wall of the brick membrane. The shear wall is convex as a whole, and the top of the shear wall is fixedly connected to the rolled-back part of the second waterproof layer. The first waterproof layer and the second waterproof layer are both formed by bonding double layers of waterproof rolls.

[0011] Furthermore, the shear wall is penetrated with a plurality of reserved holes, the outer side of the shear wall is fixedly connected with a concrete protective layer, a plurality of connecting steel bars are horizontally arranged in the concrete protective layer, and one end of the connecting steel bar is inserted into the reserved hole.

[0012] Furthermore, the bottom of the second waterproof layer is bent and overlapped on the first waterproof layer, the second waterproof layer is provided with a closing strip, and the closing strip is provided with a plurality of fasteners.

[0013] Furthermore, the fastener includes a bolt installed on the inner side of the closing strip, a threaded hole for installing the bolt is opened in the raft body, through holes for the bolt to pass through are opened on the first waterproof layer and the second waterproof layer, and two wedge washers are arranged between the bolt and the closing strip.

[0014] Furthermore, the wedge-shaped washer comprises a gasket, two gaskets are provided with small teeth on one side away from each other, and two gaskets are provided with large teeth on one side close to each other, and the two large teeth are meshed with each other; The mutual meshing angle α of the large teeth is greater than the lead angle β of the bolt thread.

[0015] Furthermore, the present application also provides a construction method for an ultra-thick raft slab post-cast shear wall dam interception device, comprising the following steps: S1: compact the main cushion layer of the raft slab and make grooves, and lay the first waterproof layer on its surface after solidification; S2: vertically build a brick membrane on the first waterproof layer, install a negative corner reinforcement piece in the cavity at the bottom of the brick membrane, lay a second waterproof layer on the surface of the brick membrane, and overlap the second waterproof layer with the first waterproof layer; S3: Use a handheld welding torch to hot-melt weld the overlapping edges of the first waterproof layer and the second waterproof layer, and use a closing strip and fasteners to fix them; S4: The outer wall of the brick membrane is used for the construction of the shear wall. A number of reserved holes are reserved on the shear wall. After the support is completed, a concrete protective layer is poured on the outer side of the shear wall; S5: During the construction of the concrete protective layer, one end of the connecting steel bar is inserted into the reserved hole of the shear wall, and the concrete protective layer wraps the brick membrane and the shear wall as a whole; S6: Apply sealing strips at the joints of brick membrane, shear wall and concrete protective layer to form an interception.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the internal corner reinforcement piece provides an additional protective layer for the joint position of the first waterproof layer. Since the internal corner reinforcement piece is located in the cavity of the brick membrane, it can cover and protect the joint part, reduce physical damage during construction, and ensure the sealing of the joint, prevent moisture from penetrating through the construction joint or the post-casting strip position, and improve the quality of water interception engineering in offshore wind farms.

[0017] 2. In the present invention, the "W"-shaped elastic plate can, on the one hand, pre-tighten the water-swellable waterstop strip during installation, so that it can maintain a certain compression state even when it is not in contact with water, thereby reducing gaps; on the other hand, during the expansion process of the water-swellable waterstop strip, the elastic plate can adapt to the expansion and deformation of the water-swellable waterstop strip, provide a certain buffer space for it, and at the same time continue to give the water-swellable waterstop strip a certain reverse pressure, thereby ensuring that the water-swellable waterstop strip fits tightly with surrounding components, thereby enhancing the waterproof performance of the wind farm building.

[0018] 3. In the present invention, when the bolt completes the locking action, the small teeth on the outside of the gasket will be tightly embedded in the surface of the closing strip or the bolt, and at the same time, the large teeth on the inside of the gasket will be tightly meshed with each other. Once the bolt shows signs of loosening and rotating due to vibration, since the angle α of the large teeth is larger than the lift angle β of the bolt, the lift generated by the gasket is greater than the lift generated by the bolt, so that the gasket will further tighten the bolt, thereby effectively preventing the bolt from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of a partial cross-sectional structure of an embodiment of the present invention; Figure 3 For the embodiment of the present invention Figure 2 A schematic diagram of the structure with a partial enlargement at the center; Figure 4 This is a schematic structural diagram of a water-swellable waterstop strip according to an embodiment of the present invention; Figure 5 It is a schematic structural diagram of another perspective of the embodiment of the present invention as a whole; Figure 6 A schematic diagram of the structure of a concrete protective layer according to an embodiment of the present invention; Figure 7 For the embodiment of the present invention Figure 2 A schematic diagram of the structure with a partial enlargement at B in the middle; Figure 8 It is a schematic diagram of the structure of bolts and gaskets according to an embodiment of the present invention.

[0021] The numbers in the figure represent: 1. raft body; 2. first waterproof layer; 3. brick membrane; 4. shear wall; 41. reserved hole; 5. internal corner reinforcement; 51. T-shaped plate; 52. fixing block; 53. water-swelling waterstop; 54. elastic plate; 6. groove; 7. second waterproof layer; 8. concrete protective layer; 9. closing strip; 10. fastener; 101. bolt; 102. gasket; 103. small tooth; 104. large tooth. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The present invention will be further described below in conjunction with the embodiments.

[0024] Example 1, reference Figure 1 - Figure 6 , which is the first embodiment of the present invention, provides an ultra-thick raft slab post-cast shear wall dam interception device, including a raft slab body 1, and a first waterproof layer 2 laid on the raft slab body 1, a brick membrane 3 is vertically built on the first waterproof layer 2, and the brick membrane 3 is located on the inner side of the raft slab body 1, and a shear wall 4 is fixedly connected between the outer wall of the raft slab body 1 and the outer wall of the brick membrane 3.

[0025] In offshore wind farms, due to the deep burial depth of the underground structure of the building, it is often immersed in seawater or groundwater all year round, which makes leakage problems prone to occur. Among them, the high-frequency leakage positions at the bottom of the underground structure are mostly the extended part of the foundation of the raft body 1 and the waterproof part of the shear wall 4. During the waterproof construction of the extended part of the foundation of the traditional raft body 1 and the shear wall 4, the first waterproof layer 2 is usually thrown on the top surface of the brick tire membrane 3, and there is no special treatment at the negative corner of the structure. In the subsequent construction process, the first waterproof layer 2 thrown is easily disturbed and damaged by the construction operations such as the erection of ground-type scaffolding, external wall reinforcement, and formwork installation. The protection of the first waterproof layer 2 (at the construction joint or post-casting belt of the brick tire membrane 3 structure) is difficult, which causes great trouble to the waterproof quality management, thereby leaving hidden dangers for the water interception project.

[0026] Reference Figure 3 A cavity is opened at the bottom of the brick membrane 3, and a negative corner reinforcement piece 5 is installed in the cavity of the brick membrane 3, and the negative corner reinforcement piece 5 is in contact with the top surface of the first waterproof layer 2.

[0027] Specifically, the internal corner reinforcement 5 provides an additional protective layer for the joint position of the first waterproof layer 2. Since the internal corner reinforcement 5 is located in the cavity of the brick membrane 3, it can cover and protect the joint part, reduce physical damage during construction, and ensure the sealing of the joints, preventing moisture from penetrating through construction joints or post-cast joints, thereby improving the quality of water interception projects in offshore wind farms.

[0028] Reference Figure 3 A groove 6 is provided on the top surface of the raft body 1, and the bottom surface of the first waterproof layer 2 is fixedly connected to the top surface of the raft body 1; the internal angle reinforcement 5 includes a T-shaped plate 51 fixedly connected to the inner top wall of the brick membrane 3, and a fixing block 52 is symmetrically fixedly connected to the bottom of the T-shaped plate 51, and the shape of the fixing block 52 is adapted to the groove 6, and a water-swellable waterstop strip 53 is installed between the two fixing blocks 52; an elastic plate 54 is provided between the water-swellable waterstop strip 53 and the T-shaped plate 51, and the elastic plate 54 is in a "W" shape as a whole, and the two ends of the elastic plate 54 are respectively inserted into the inner sides of the fixing blocks 52 on both sides; the water-swellable waterstop strip 53 is in an anchor shape as a whole, and the top end of the water-swellable waterstop strip 53 is inserted into the inner side of the elastic plate 54.

[0029] Specifically, the anchor-shaped water-swelling waterstop strip 53 increases the contact area and friction with surrounding components, facilitates positioning and enhances the water-stopping effect. When water penetrates into the inner corner, the water-swelling waterstop strip 53 can better fill the gap, effectively block the possible gap, and prevent further water leakage.

[0030] Specifically, the "W"-shaped elastic plate 54 can, on the one hand, pre-tighten the water-swellable waterstop strip 53 during installation, so that it can maintain a certain compression state even when it is not exposed to water, thereby reducing gaps; on the other hand, during the expansion process of the water-swellable waterstop strip 53, the elastic plate 54 can adapt to the expansion and deformation of the water-swellable waterstop strip 53, providing it with a certain buffer space, while continuing to give the water-swellable waterstop strip 53 a certain reverse pressure, thereby ensuring that the water-swellable waterstop strip 53 fits tightly with surrounding components, thereby enhancing the waterproof performance of the wind farm building.

[0031] Reference Figure 2 and Figure 5 A second waterproof layer 7 is laid on the brick membrane 3, and the top of the second waterproof layer 7 is bent at a right angle and rolled back on the side wall of the brick membrane 3, and the shear wall 4 is overall in a "convex" shape (such as Figure 2 As shown in the figure, the top of the shear wall 4 is fixedly connected to the rolled portion of the second waterproof layer 7; a plurality of reserved holes 41 are penetrated through the shear wall 4, a concrete protective layer 8 is fixedly connected to the outer side of the shear wall 4, a plurality of connecting steel bars are horizontally arranged in the concrete protective layer 8, and one end of the connecting steel bar is inserted into the reserved hole 41; the first waterproof layer 2 and the second waterproof layer 7 are both formed by bonding double-layer waterproof membranes.

[0032] Specifically, the first waterproof layer 2 is laid on the raft body 1 to provide waterproof protection for the foundation. The second waterproof layer 7 is laid on the brick membrane 3, and the top of the second waterproof layer 7 is fixedly connected to the top of the shear wall 4 to form a continuous waterproof barrier to prevent moisture from penetrating into the structure from the junction of the brick membrane 3 and the shear wall 4.

[0033] Specifically, the "protruding" part of the shear wall 4 can act as a supporting rib, dispersing the lateral force (generated by strong winds or waves) to other components, avoiding stress concentration at a certain point or area of ​​the shear wall 4, reducing the deformation of the entire structure and enhancing stability. The concrete protective layer 8 is connected to the reserved hole 41 of the shear wall 4 through the internal connecting steel bars, and is tightly wrapped around the outside of the shear wall 4. When subjected to external force, the connecting steel bars connect the shear wall 4 and the concrete protective layer 8 together, thereby improving the strength of the entire structure and the load-bearing stability. At the same time, the concrete protective layer 8 protects the shear wall 4, reduces the erosion of the shear wall 4 by the external environment, and prolongs the service life of the structure.

[0034] Example 2, reference Figure 1- Figure 8 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the bottom of the second waterproof layer 7 is bent and overlapped on the first waterproof layer 2, a closing strip 9 is provided on the second waterproof layer 7, and a plurality of fasteners 10 are provided on the closing strip 9; the fastener 10 includes a bolt 101 installed on the inner side of the closing strip 9, a threaded hole for installing the bolt 101 is provided in the raft body 1, through holes for the bolt 101 to pass through are provided on the first waterproof layer 2 and the second waterproof layer 7, and two wedge washers are provided between the bolt 101 and the closing strip 9.

[0035] Specifically, the closing strip 9 serves to fix and protect the edge of the waterproof layer to prevent the bottom edge of the second waterproof layer 7 from curling up or curling up during long-term use. After tightening the bolt 101, the closing strip 9 tightly presses the second waterproof layer 7, thereby making the second waterproof layer 7 fit tightly with the first waterproof layer 2, thereby enhancing the connection strength and sealing between the waterproof layers.

[0036] Reference Figure 7 and Figure 8 The wedge-shaped washer includes a gasket 102, and the two gaskets 102 have small teeth 103 on the side away from each other, and large teeth 104 on the side close to each other, and the two large teeth 104 are meshed with each other; the angle α of the large teeth 104 meshing with each other is greater than the lead angle β of the bolt 101 thread.

[0037] Specifically, when the bolt 101 completes the locking action, the small teeth 103 on the outside of the gasket 102 will be tightly embedded in the surface of the closing strip 9 or the bolt 101, and at the same time, the large teeth 104 on the inside of the gasket 102 are tightly meshed with each other. Once the bolt 101 shows signs of loosening and rotating due to vibration, since the angle α of the large teeth 104 is larger than the lift angle β of the bolt 101, the lift generated by the gasket 102 is greater than the lift generated by the bolt 101, so that the gasket 102 will further tighten the bolt 101, thereby effectively preventing the bolt 101 from loosening. The rest of the structure is the same as that of Example 1.

[0038] Example 3, reference Figure 1-8 , which is the third embodiment of the present invention, provides: a construction method for an ultra-thick raft slab post-cast shear wall dam interception device, comprising the following steps: S1: compact the cushion layer of the raft body 1 and open the groove 6, and lay the first waterproof layer 2 on its surface after solidification.

[0039] S2: vertically build a brick membrane 3 on the first waterproof layer 2, and install a negative corner reinforcement 5 in the cavity at the bottom of the brick membrane 3, and lay a second waterproof layer 7 on the surface of the brick membrane 3, and the second waterproof layer 7 overlaps the first waterproof layer 2.

[0040] S3: The overlapping edges of the first waterproof layer 2 and the second waterproof layer 7 are hot-melt welded by a handheld welding torch, and fixed by a closing strip 9 and a fastener 10.

[0041] S4: The shear wall 4 is constructed on the outer wall of the brick membrane 3, and a plurality of reserved holes 41 are reserved on the shear wall 4. After the support is completed, a concrete protective layer 8 is poured on the outer side of the shear wall 4.

[0042] S5: During the construction of the concrete protective layer 8, one end of the connecting steel bar is inserted into the reserved hole 41 of the shear wall 4, and the concrete protective layer 8 wraps the brick membrane 3 and the shear wall 4 as a whole.

[0043] S6: Apply sealing strips at the joints of the brick membrane 3, the shear wall 4 and the concrete protective layer 8 to form an interception.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ultra-thick raft post-cast belt shear wall dam interception device, comprising a raft body (1), and a first waterproof layer (2) laid on the raft body (1), characterized in that: A brick membrane (3) is vertically arranged on the first waterproof layer (2), and the brick membrane (3) is located on the inner side of the raft body (1), and a shear wall (4) is fixedly connected between the outer side wall of the raft body (1) and the outer side wall of the brick membrane (3); A cavity is provided at the bottom of the brick membrane (3), a recessed corner reinforcement piece (5) is provided in the cavity of the brick membrane (3), and the recessed corner reinforcement piece (5) is in contact with the top surface of the first waterproof layer (2).

2. The ultra-thick raft slab post-cast strip shear wall dam interception device according to claim 1 is characterized in that: The top surface of the raft body (1) is provided with a groove (6), and the bottom surface of the first waterproof layer (2) is fixedly connected to the top surface of the raft body (1); The internal corner reinforcement (5) comprises a T-shaped plate (51) arranged on the inner top wall of the brick membrane (3), a fixing block (52) is symmetrically arranged at the bottom of the T-shaped plate (51), the shape of the fixing block (52) is adapted to the groove (6), and a water-swellable water stop strip (53) is arranged between the two fixing blocks (52).

3. The ultra-thick raft slab post-cast strip shear wall dam interception device according to claim 2 is characterized in that: An elastic plate (54) is provided between the water-swellable water stop strip (53) and the T-shaped plate (51); the elastic plate (54) is in a "W" shape as a whole, and two ends of the elastic plate (54) are respectively inserted into the inner sides of the fixing blocks (52) on both sides.

4. The ultra-thick raft slab post-cast strip shear wall dam interception device according to claim 3 is characterized in that: The water-swellable waterstop strip (53) is in the shape of an anchor as a whole, and the top end of the water-swellable waterstop strip (53) is inserted into the inner side of the elastic plate (54).

5. The ultra-thick raft slab post-cast strip shear wall dam interception device according to claim 1 is characterized in that: A second waterproof layer (7) is laid on the brick membrane (3), and the top of the second waterproof layer (7) is bent at a right angle and rolled back on the side wall of the brick membrane (3); the shear wall (4) is convex as a whole, and the top of the shear wall (4) is fixedly connected to the rolled-back portion of the second waterproof layer (7); The first waterproof layer (2) and the second waterproof layer (7) are both formed by bonding two layers of waterproof rolls.

6. The ultra-thick raft slab post-cast strip shear wall dam interception device according to claim 1, characterized in that: The shear wall (4) is provided with a plurality of reserved holes (41) extending therethrough, a concrete protective layer (8) is fixedly connected to the outer side of the shear wall (4), a plurality of connecting steel bars are horizontally arranged in the concrete protective layer (8), and one end of the connecting steel bar is inserted into the reserved hole (41).

7. The ultra-thick raft slab post-cast strip shear wall dam interception device according to claim 5 is characterized in that: The bottom of the second waterproof layer (7) is bent and overlapped on the first waterproof layer (2), and a closing strip (9) is provided on the second waterproof layer (7), and a plurality of fasteners (10) are provided on the closing strip (9).

8. The ultra-thick raft slab post-cast strip shear wall dam interception device according to claim 7 is characterized in that: The fastener (10) comprises a bolt (101) mounted on the inner side of the closing strip (9); a threaded hole for mounting the bolt (101) is provided in the raft body (1); through holes for the bolt (101) to pass through are provided on the first waterproof layer (2) and the second waterproof layer (7); and two wedge-shaped washers are provided between the bolt (101) and the closing strip (9).

9. The ultra-thick raft slab post-cast strip shear wall dam interception device according to claim 8, characterized in that: The wedge-shaped washer comprises a washer (102), wherein two of the washer (102) are provided with small teeth (103) on one side away from each other, and the two of the washer (102) are provided with large teeth (104) on one side close to each other, and the two large teeth (104) are meshed with each other; The mutual engagement angle α of the large teeth (104) is greater than the lead angle β of the thread of the bolt (101).

10. A construction method for an ultra-thick raft slab post-cast shear wall dam interception device, based on the ultra-thick raft slab post-cast shear wall dam interception device as claimed in claim 9, characterized in that: The following steps are involved: S1: compacting the cushion layer of the raft body (1) and forming a groove (6), and laying a first waterproof layer (2) on the surface after solidification; S2: vertically laying a brick membrane (3) on the first waterproof layer (2), installing a negative corner reinforcement piece (5) in the cavity at the bottom of the brick membrane (3), laying a second waterproof layer (7) on the surface of the brick membrane (3), and overlapping the second waterproof layer (7) with the first waterproof layer (2); S3: The overlapping edges of the first waterproof layer (2) and the second waterproof layer (7) are heat-melted by a handheld welding torch, and fixed by a closing strip (9) and a fastener (10); S4: constructing a shear wall (4) on the outer side wall of the brick membrane (3), reserving a plurality of reserved holes (41) on the shear wall (4), and pouring a concrete protective layer (8) on the outer side of the shear wall (4) after the support is completed; S5: During the construction of the concrete protective layer (8), one end of the connecting steel bar is inserted into the reserved hole (41) of the shear wall (4), so that the concrete protective layer (8) completely wraps the brick membrane (3) and the shear wall (4); S6: Apply sealing strips to the joints between the brick membrane (3), the shear wall (4) and the concrete protective layer (8) to form an interception.

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