Building underground waterproof and moisture-proof double-wall separation structure

By adopting a waterproof and moisture-proof double-wall separation structure in underground construction, the wall layers can be poured simultaneously, solving the problem of long construction period, improving efficiency, and enhancing waterproofing effect and structural stability.

CN117385928BActive Publication Date: 2026-07-14BEIJING SHOUGANG CONSTR GROUP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING SHOUGANG CONSTR GROUP
Filing Date
2023-10-18
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing construction procedures for waterproofing and damp-proofing underground buildings are numerous, resulting in long construction cycles and low efficiency.

Method used

The structure adopts a double-wall partition structure based on underground waterproofing and moisture-proofing. The frame of the middle partition layer is fixedly connected to the steel reinforcement skeleton of the two wall layers. The waterproof layer is installed on the frame, and the wall layers can be poured at the same time. The middle partition layer is embedded in the wall to form a wall structure with waterproof and moisture-proof functions.

Benefits of technology

It shortens the construction cycle, improves construction efficiency, and enhances waterproofing and the stability of the wall structure, preventing groundwater seepage and crack propagation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117385928B_ABST
    Figure CN117385928B_ABST
Patent Text Reader

Abstract

The application discloses a building underground waterproof and moisture-proof double-wall separation structure, and relates to the field of building construction technology, which comprises a wall body and an intermediate separation layer embedded in the wall body, the intermediate separation layer separates the wall body into two wall layers, one of which is an outer wall layer and the other is an inner wall layer, and the two wall layers are internally provided with steel reinforcement frameworks; the intermediate separation layer is embedded between the two wall layers, and comprises a frame and a waterproof layer, the frame is fixedly connected with the steel reinforcement frameworks of the two wall layers respectively, and the peripheral edges of the waterproof layer are connected with the frame respectively. In the application, the intermediate separation layer is embedded in the wall body, which is beneficial to shortening the construction period of the basement building wall body with waterproof and moisture-proof functions and guarantees the waterproof effect of the wall body of the underground building.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to a double-wall partition structure for waterproofing and moisture-proofing underground buildings. Background Technology

[0002] Underground structures are buildings constructed within rock or soil layers. They are a product of rapid modern urban development, serving to alleviate urban stresses, improve the living environment, and open up new living spaces for humanity. Because underground structures are deeply buried, they are susceptible to seepage from soil and groundwater; therefore, moisture and water resistance are crucial issues to address in underground building design. Generally, moisture and water resistance solutions are determined based on the standards and structural form of the underground structure, as well as hydrogeological conditions.

[0003] Currently, waterproofing and damp-proofing of underground structures are mainly achieved by laying waterproof membrane layers on the inner walls. When constructing the walls of an underground structure, the main structure must be built first, then the waterproof membrane is laid on the inner side of the wall, followed by plastering or a protective wall to protect the waterproof membrane. This construction process involves the construction of the main wall structure, the laying of the waterproof membrane, and the construction of the protective wall. The numerous steps and the long waiting times between different steps result in a long overall construction cycle and low efficiency for underground building walls. Summary of the Invention

[0004] In order to shorten the construction cycle of underground building walls with waterproof and moisture-proof functions and improve construction efficiency, this application provides a double-wall partition structure for waterproof and moisture-proof underground buildings.

[0005] This application provides a technical solution for a double-wall partition structure for waterproofing and moisture-proofing underground buildings, using the following approach:

[0006] A double-wall partition structure for waterproofing and moisture-proofing underground buildings includes a wall and an intermediate partition layer embedded in the wall. The intermediate partition layer divides the wall into two wall layers, one as an outer wall layer and the other as an inner wall layer. Both wall layers have a steel reinforcement skeleton inside. The intermediate partition layer is embedded between the two wall layers and includes a frame and a waterproof layer. The frame is fixedly connected to the steel reinforcement skeleton of each of the two wall layers, and the peripheral edges of the waterproof layer are connected to the frame.

[0007] By adopting the above technical solution, the frame of the intermediate partition layer is fixedly connected to the steel reinforcement skeleton of the two wall layers, and the waterproof layer is installed on the frame. The two wall layers can be poured simultaneously, allowing the intermediate partition layer to be embedded in the wall. This enables the formation of a waterproof and moisture-proof wall structure with a shorter construction cycle, which is beneficial to improving the construction efficiency of underground building walls. The waterproof layer of the intermediate partition layer separates the concrete of the two wall layers. When groundwater seeps into the outer wall layer, it is hindered by the waterproof layer, while the groundwater exerts osmotic pressure on the waterproof layer. The side of the waterproof layer away from the outer wall layer is supported by the inner wall layer, allowing the waterproof layer to resist the osmotic pressure of groundwater using the support of the inner wall layer. This makes it less likely for groundwater to damage the waterproof layer, which is beneficial to improving the waterproof effect. On the other hand, the waterproof layer of the intermediate partition layer can separate the two wall layers. When cracks appear in one wall layer, the waterproof layer can prevent the cracks from extending to the other wall layer, which is beneficial to ensuring the waterproof effect of the wall structure. The frame of the intermediate partition layer is fixedly connected to the steel reinforcement skeleton of the two wall layers. The intermediate layer is embedded between the two wall layers, and the two wall layers can be poured and constructed simultaneously. This is beneficial for the two wall layers to have a stronger overall integrity after solidification, and helps to ensure the structural stability of the underground building walls.

[0008] Optionally, the bottom of the frame is provided with multiple baffles, the baffles are parallel to the wall layer, and the multiple baffles are spaced apart along the extension direction of the wall layer. The baffles have horizontal flow openings, the waterproof layer has clearance openings for connecting the horizontal flow openings, and the baffles have flaps for blocking the horizontal flow openings. The outline size of the flaps is larger than the outline size of the horizontal flow openings. The flaps are arranged in a one-to-one correspondence with the horizontal flow openings, and the upper edge of the flaps is movably connected to the baffles. The flaps include a first flap and a second flap. The first flap is located on the side of the baffle closer to the outer wall layer, and the second flap is located on the side of the baffle closer to the inner wall layer.

[0009] By adopting the above technical solution, when two wall layers are constructed using a synchronous pouring method, the concrete injected into the areas where the two wall layers are located can be pushed aside by the flap and circulated through the horizontal flow port, thereby keeping the concrete in the areas where the two wall layers are located as close as possible to the same liquid level. After the wall layers are poured, the flap can fit against the edge of the horizontal flow port, making it difficult for water to seep between the two wall layers.

[0010] Optionally, a flexible connecting piece is connected to the upper edge of the flap, and the side of the flexible connecting piece away from the flap is connected to the baffle.

[0011] By adopting the above technical solution, the upper edge of the flap is connected to the baffle through a flexible connecting piece, enabling the flap to flip up and down. Compared with the flipping function achieved by hinge connection in conventional technology, the flexible connecting piece makes it less prone to jamming during the flap flipping process by using flexible deformation.

[0012] Optionally, the flap is provided with an asphalt layer on the side near the baffle, the asphalt layer abuts against the edge of the horizontal flow port, the flap is provided with elastic abutting members at intervals along the circumference, the elastic abutting members abut against the edge of the horizontal flow port, and the elastic abutting members are in a state of compression deformation; a traction wire is pulled on the side of the flap near the baffle, the traction wire is used to force the asphalt layer of the flap to abut against the baffle.

[0013] By adopting the above technical solution, the flap, through the asphalt layer, abuts against the edge of the horizontal flow opening, providing a strong shielding and sealing effect. During the concrete pouring of the two wall layers, the elastic abutment of the flap maintains a gap between the asphalt layer and the edge of the horizontal flow opening, reducing the adhesion between the asphalt layer and the baffle, making it easier for the flowing concrete to push aside the flap and pass through the horizontal flow opening. After the concrete pouring of the wall layers is completed, a traction force can be applied to the flap using traction wires, allowing the asphalt layer on the flap to approach and abut against the horizontal flow opening while overcoming the elastic force of the elastic abutment.

[0014] Optionally, a winding rod is fixedly provided at the edge of the orifice of the horizontal flow port. The winding rod is horizontally positioned, and its center line intersects with the center line of the horizontal flow port. The traction wire is connected to the central area of ​​the flap, and extends upward after passing over the winding rod.

[0015] By adopting the above technical solution, one end of the traction wire is connected to the central area of ​​the flap. After the traction wire passes around the winding rod, it extends upward. When the traction wire is subjected to an upward traction force, the traction wire generates a pulling force on the central area of ​​the flap, which helps to make the flap exert a more balanced pressure on the circumferential edge of the horizontal flow port, thus ensuring the sealing effect of the flap on the horizontal flow port.

[0016] Optionally, the waterproof layer includes a waterproof membrane layer, a flexible film layer, and a plastic sheet layer, with the waterproof membrane layer located between the flexible film layer and the plastic sheet layer.

[0017] By adopting the above technical solution, the waterproof layer mainly achieves its waterproof and moisture-proof functions through the waterproof membrane layer. A flexible film layer is laid on one side of the waterproof membrane layer, and a plastic sheet layer is laid on the other side. This protects the waterproof membrane layer from scratches and damage during the wall layer pouring process. The plastic sheet layer helps maintain the flatness of the waterproof layer. Both the flexible film layer and the waterproof membrane layer are ductile, allowing them to adapt to thermal expansion and contraction during the use of underground building walls. Furthermore, the plastic sheet layer, formed by piecing together rectangular plastic sheets, reduces its obstruction to the expansion and deformation of the waterproof membrane layer.

[0018] Optionally, the flexible film layer may have a fiber cloth layer on the side away from the waterproof membrane layer.

[0019] By adopting the above technical solution, by setting a fiber cloth layer on the side of the flexible film layer away from the waterproof membrane layer, the concrete of the wall layer can generate a greater adhesion to the fiber cloth layer, which is beneficial to improving the connection strength between the wall layer and the intermediate partition layer.

[0020] Optionally, the waterproof layer is provided with steel wire mesh sheets on both sides, the waterproof layer is located between the two steel wire mesh sheets, and the clearance opening passes through the two steel wire mesh sheets.

[0021] By adopting the above technical solution, the waterproof layer is set between two layers of steel wire mesh sheets. The two layers of steel wire mesh sheets can support the waterproof layer. During the pouring of the wall layer, the fluid pressure of the concrete acts on the steel wire mesh sheets, which can reduce the force of the flowing concrete on the waterproof layer.

[0022] Optionally, a rubber buffer strip is laid on the bottom surface of the frame along the length direction, and an asphalt water-blocking layer is provided on the lower surface of the rubber buffer strip. The asphalt water-blocking layer is used to abut against the base plate of the underground building.

[0023] By adopting the above technical solution, the frame is vertically installed on the base plate of the underground building, and the joint between the frame and the base plate of the underground building is sealed by an asphalt water-blocking layer; the weight of the frame acts on the rubber sheet and the asphalt water-blocking layer, and the rubber buffer strip can undergo adaptive deformation to fully fill the joint between the bottom surface of the frame and the base plate of the underground building, thereby helping to ensure the sealing effect between the frame and the base plate of the underground building.

[0024] Optionally, each frame strip of the frame is provided with a clamping assembly, the clamping assembly including a pressure plate and a screw fastening assembly, the pressure plate being connected to the frame strip of the frame via a screw fastening assembly, the pressure plate and the frame strip of the frame together clamping the edge of the waterproof layer.

[0025] By adopting the above technical solution, the clamping plate of the clamping component presses the waterproof layer tightly against the frame strip of the frame under the locking force of the threaded fastener, so that the waterproof layer is not easy to fall off under the action of the concrete during the pouring of the wall layer.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The frame of the intermediate partition layer is fixedly connected to the steel reinforcement skeleton of the two wall layers respectively. The waterproof layer is installed on the frame. The two wall layers can be poured at the same time, so that the intermediate partition layer is embedded in the wall. This allows for the formation of a waterproof and moisture-proof wall structure with a shorter construction cycle, which is beneficial to improving the construction efficiency of underground building walls.

[0028] 2. The waterproof layer mainly achieves its waterproof and moisture-proof functions through the waterproof membrane layer; a flexible film layer is laid on one side of the waterproof membrane layer, and a plastic sheet layer is laid on the other side of the waterproof membrane layer, so that the waterproof membrane layer is protected by the flexible film layer and the plastic sheet layer, making the waterproof membrane layer less likely to be scratched and damaged during the construction of the wall layer.

[0029] 3. The frame is installed vertically on the base plate of the underground building, and the joint between the frame and the base plate of the underground building is sealed by an asphalt water-blocking layer; the weight of the frame acts on the rubber sheet and the asphalt water-blocking layer, and the rubber buffer strip can undergo adaptive deformation to fully fill the joint between the bottom surface of the frame and the base plate of the underground building, thereby helping to ensure the sealing effect between the frame and the base plate of the underground building. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this embodiment.

[0031] Figure 2 This is a schematic diagram illustrating the structure of the intermediate partition layer in this embodiment.

[0032] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0033] Figure 4 yes Figure 2 A magnified view of a portion of point B in the middle.

[0034] Figure 5 This is a perspective view of the intermediate partition layer in this embodiment.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Intermediate layer; 11. Frame; 12. Waterproof layer; 121. Waterproof membrane layer; 122. Flexible film layer; 123. Plastic sheet layer; 124. Fiber cloth layer; 125. Clearance opening; 13. Steel wire mesh sheet; 14. Clamping assembly; 141. Pressure plate; 142. Screw fastening assembly; 1421. Bolt; 1422. Nut; 15. Rubber buffer strip; 16. Asphalt water-blocking layer; 17. Baffle; 171. Horizontal flow opening; 18. Flip plate; 1801. First flip plate; 1802. Second flip plate; 181. Flexible connecting piece; 182. Asphalt layer; 183. Elastic abutment piece; 19. Traction wire; 191. Winding rod; 2. Wall layer; 201. Exterior wall layer; 202. Interior wall layer; 21. Reinforcing steel skeleton. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0038] This application discloses a double-wall partition structure for waterproofing and moisture-proofing underground buildings. (Refer to...) Figure 1 , Figure 2 and Figure 3 The underground waterproof and moisture-proof double-wall partition structure includes a wall and an intermediate partition 1 embedded in the wall. The wall is installed on the base slab of the underground building. The intermediate partition 1 divides the wall into two wall layers 2, one as the outer wall layer 201 and the other as the inner wall layer 202. Both wall layers 2 have a steel reinforcement skeleton 21 inside. The wall layers 2 and the intermediate partition 1 are installed on the base slab of the underground building. The intermediate partition 1 includes a frame 11, a waterproof layer 12 and two steel wire mesh pieces 13. The waterproof layer 12 is located between the two steel wire mesh pieces 13. The frame 11 is welded and fixed to the steel reinforcement skeleton 21 of the two wall layers 2 respectively. The waterproof layer 12 and the steel wire mesh pieces 13 are connected to the frame 11 through a clamping assembly 14.

[0039] The frame 11 of the intermediate partition layer 1 is welded and fixed to the steel reinforcement frame 21 of the two wall layers 2. The concrete of the two wall layers 2 is poured simultaneously, so that the intermediate partition layer 1 is embedded inside the wall, thereby enabling the two wall layers 2 and the intermediate partition layer 1 to form a high degree of integrity. When groundwater seeps into the outer wall layer 201 and continues to seep into the interior of the building, the waterproof layer 12 of the intermediate partition layer 1 can prevent the seepage of groundwater.

[0040] Reference Figure 3The frame 11 is formed by welding angle steel. A rubber buffer strip 15 is laid along the entire length of the bottom surface of the frame 11. The rubber buffer strip 15 is bonded to the bottom surface of the frame 11 with asphalt adhesive. An asphalt water-blocking layer 16 is provided on the lower surface of the rubber buffer strip 15, which abuts against the foundation slab of the underground building. The asphalt waterproof layer 12 prevents groundwater from passing between the bottom of the frame 11 and the foundation slab of the underground building, thereby reducing the flow of groundwater from the outer wall layer 201 to the inner wall layer 202.

[0041] Reference Figure 3 The clamping assembly 14 includes a pressure plate 141 and a screw fastening assembly 142. The pressure plate 141 is connected to the frame strip of the frame 11 by the screw fastening assembly. The screw fastener includes a bolt 1421 and a nut 1422. The bolt 1421 passes through the pressure plate 141 and the frame strip of the frame 11 in sequence and is connected to the nut 1422. When the bolt 1421 and the nut 1422 are locked, the pressure plate 141 and the frame strip of the frame 11 can jointly clamp the edges of the waterproof layer 12 and the wire mesh sheet 13.

[0042] Reference Figure 4 and Figure 5 The bottom of the frame 11 is provided with multiple baffles 17, which are parallel to the wall layer 2. The multiple baffles 17 are distributed at equal intervals along the extension direction of the wall layer 2. The baffles 17 have horizontal flow openings 171. The waterproof layer 12 has a clearance opening 125 for connecting the horizontal flow opening 171. The clearance opening 125 also passes through two steel wire mesh pieces 13.

[0043] The baffle 17 is provided with a flap 18 for blocking the horizontal flow opening 171. A flexible connecting piece 181 is connected to the upper edge of the flap 18. The side of the flexible connecting piece 181 away from the flap 18 is connected to the baffle 17, so that the upper edge of the flap 18 and the baffle 17 form a movable connection. The outline dimension of the flap 18 is larger than the outline dimension of the horizontal flow opening 171. The flap 18 is provided in a one-to-one correspondence with the horizontal flow opening 171. The flap 18 includes a first flap 1801 and a second flap 1802. The first flap 1801 is located on the side of the baffle 17 closer to the outer wall layer 201, and the second flap 1802 is located on the side of the baffle 17 closer to the inner wall layer 202. The first flap 1801 and the second flap 1802 are alternately arranged along the extension direction of the wall layer 2.

[0044] During the wall pouring process, concrete is simultaneously injected into the areas on both sides of the intermediate partition 1. As the concrete rises, the concrete on both sides of the intermediate partition 1 can flow between each other through the horizontal flow port 171, thereby keeping the liquid level of the concrete injected into the areas on both sides of the intermediate partition as consistent as possible, so as to minimize the squeezing of the intermediate partition 1 by the concrete. As the concrete flows through the horizontal flow port 171, the concrete needs to push aside the flap 18.

[0045] When concrete flows from the area of ​​the outer wall layer 201 to the area of ​​the inner wall layer 202, the concrete pushes aside the second flap 1802; when concrete flows from the area of ​​the inner wall layer 202 to the area of ​​the outer wall layer 201, the concrete pushes aside the first flap 1801. After the concrete pouring is completed, the flap 1801 covers the horizontal flow opening 171, making it difficult for water from the outer wall layer 201 to enter the inner wall layer 202 through the horizontal flow opening 171.

[0046] Reference Figure 4 The flap 18 is provided with an asphalt layer 182 on the side near the baffle 17. The flap 18 abuts against the edge of the horizontal flow port 171 through the asphalt layer 182, which can increase the sealing effect of the flap 18 on the horizontal flow port 171.

[0047] Reference Figure 4 The flap 18 is provided with elastic abutment members 183 spaced apart circumferentially. The elastic abutment members 183 can be rubber pads or springs. The elastic abutment members 183 abut against the edge of the horizontal flow port 171 and are in a state of compression deformation. A traction wire 19 is provided on the side of the flap 18 near the baffle 17. The traction wire 19 can be metal wire or multi-strand yarn. One end of the traction wire 19 is connected and fixed to the central area of ​​the flap 18. The traction wire 19 can be welded or glued to the flap 18, or a special binding connector can be provided on the flap 18 for binding the traction wire 19. A winding rod 191 is welded and fixed to the edge of the opening of the horizontal flow port 171. The winding rod 191 is horizontally set, and the center line of the winding rod 191 intersects the center line of the horizontal flow port 171. The traction wire 19 extends upward after passing over the winding rod 191.

[0048] While the concrete of wall layer 2 is not yet solidified, the elastic abutment 183 can force the asphalt layer 182 to maintain a gap with the edge of the horizontal flow opening 171. After the concrete pouring of wall layer 2 is completed, the traction wire 19 can be pulled upwards, so that the traction wire 19, which passes around the winding rod 191, can apply a horizontal pulling force to the flap 18, so that the asphalt layer 182 of the flap 18 can press against the edge of the horizontal flow opening 171. After the concrete solidifies, the flap 18 can form a good seal for the horizontal flow opening through the asphalt layer 182.

[0049] Reference Figure 3The waterproof layer 12 includes a waterproof membrane layer 121, a flexible film layer 122, a plastic sheet layer 123, and a fiber cloth layer 124. The waterproof membrane layer 121 is located between the flexible film layer 122 and the plastic sheet layer 123, and the fiber cloth layer 124 is located on the side of the flexible film layer 122 away from the waterproof membrane layer 121. The plastic sheet layer 123 includes a plurality of rectangular plastic sheets, which are arranged in a square array on the surface of the waterproof membrane layer 121. Each pair of adjacent rectangular plastic sheets is bonded together with adhesive tape, which is located on the side of the rectangular plastic sheet closer to the waterproof membrane layer 121.

[0050] The waterproof layer 12 primarily functions as a waterproof membrane for waterproofing and moisture protection. It is connected to the wall layer 2 via a fiber cloth layer 124, which increases the bonding strength between the waterproof layer 12 and the concrete of the wall layer 2. Both the waterproof membrane and the flexible film layer 122 are ductile, allowing them to adapt to the thermal expansion and contraction of the wall. The plastic sheet layer 123 is constructed from rectangular plastic sheets, and the seams between these sheets can vary with the deformation of the asphalt waterproof membrane and the flexible film layer 122.

[0051] The implementation principle of a double-wall partition structure for waterproofing and damp-proofing underground buildings according to an embodiment of this application is as follows: the frame 11 of the intermediate partition 1 is fixedly connected to the steel reinforcement skeleton 21 of the two wall layers 2 respectively. The waterproof layer 12 is installed on the frame 11. The two wall layers 2 can be poured simultaneously, so that the intermediate partition 1 is embedded in the wall, thereby achieving a wall structure with waterproof and damp-proof functions in a shorter construction cycle, which is beneficial to improving the construction efficiency of underground building walls. The waterproof layer 12 of the intermediate partition 1 separates the concrete of the two wall layers 2 from each other. The side of the waterproof layer 12 away from the outer wall layer 201 is supported by the inner wall layer 202, so that the waterproof layer 12 can resist the seepage pressure of groundwater by utilizing the support of the inner wall layer 202. On the other hand, the waterproof layer 12 of the intermediate partition 1 can separate the two wall layers 2. When one of the wall layers 2 cracks, the waterproof layer 12 can prevent the crack from extending to the other wall layer 2, which is beneficial to ensuring the waterproof effect of the wall structure.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A double-wall partition structure for waterproofing and moisture-proofing underground buildings, characterized in that, The system includes a wall and an intermediate partition (1) embedded in the wall. The intermediate partition (1) divides the wall into two wall layers (2), one of which is an outer wall layer (201) and the other is an inner wall layer (202). Both wall layers (2) have a steel reinforcement frame (21) inside. The intermediate partition (1) is embedded between the two wall layers (2). The intermediate partition (1) includes a frame (11) and a waterproof layer (12). The frame (11) is fixedly connected to the steel reinforcement frame (21) of the two wall layers (2), and the periphery of the waterproof layer (12) is connected to the frame (11). The bottom of the frame (11) is provided with multiple baffles (17), which are parallel to the wall layer (2). The multiple baffles (17) are distributed at intervals along the extension direction of the wall layer (2). Each baffle (17) has a horizontal flow opening (171). The waterproof layer (12) has a clearance opening (125) for connecting the horizontal flow opening (171). Each baffle (17) has a flap (18) for blocking the horizontal flow opening (171). The outline dimension of the flap (18) is larger than 100 mm. The outline dimensions of the horizontal flow port (171) are provided, and the flap (18) is provided in a one-to-one correspondence with the horizontal flow port (171). The upper edge of the flap (18) is movably connected to the baffle (17). The flap (18) includes a first flap (1801) and a second flap (1802). The first flap (1801) is located on the side of the baffle (17) close to the outer wall layer (201), and the second flap (1802) is located on the side of the baffle (17) close to the inner wall layer (202). The flap (18) has an asphalt layer (182) on the side near the baffle (17), the asphalt layer (182) abuts against the edge of the horizontal flow port (171), the flap (18) is provided with elastic abutment members (183) at intervals along the circumference, the elastic abutment members (183) abut against the edge of the horizontal flow port (171), the elastic abutment members (183) are in a state of pressure deformation; the flap (18) has a traction wire (19) pulled on the side near the baffle (17), the traction wire (19) is used to force the asphalt layer (182) of the flap (18) to abut against the baffle (17).

2. The double-wall partition structure for waterproofing and moisture-proofing underground buildings according to claim 1, characterized in that: The upper edge of the flap (18) is connected to a flexible connecting piece (181), and the side of the flexible connecting piece (181) away from the flap (18) is connected to the baffle (17).

3. The double-wall partition structure for waterproofing and moisture-proofing underground buildings according to claim 1, characterized in that: A winding rod (191) is fixedly provided at the edge of the opening of the horizontal flow port (171). The winding rod (191) is horizontally arranged, and the center line of the winding rod (191) intersects with the center line of the horizontal flow port (171). The traction wire (19) is connected to the central area of ​​the flap (18), and the traction wire (19) extends upward after passing around the winding rod (191).

4. The double-wall partition structure for waterproofing and moisture-proofing underground buildings according to claim 1, characterized in that: The waterproof layer (12) includes a waterproof roll layer (121), a flexible film layer (122) and a plastic sheet layer (123), with the waterproof roll layer (121) located between the flexible film layer (122) and the plastic sheet layer (123).

5. A double-wall partition structure for waterproofing and moisture-proofing underground buildings according to claim 4, characterized in that: The flexible film layer (122) has a fiber cloth layer (124) on the side away from the waterproof roll layer (121).

6. A double-wall partition structure for waterproofing and moisture-proofing underground buildings according to claim 5, characterized in that: The waterproof layer (12) is provided with steel wire mesh pieces (13) on both sides, the waterproof layer (12) is located between the two steel wire mesh pieces (13), and the clearance opening (125) passes through the two steel wire mesh pieces (13).

7. A double-wall partition structure for waterproofing and moisture-proofing underground buildings according to claim 1, characterized in that: The bottom surface of the frame (11) is provided with a rubber buffer strip (15) along the length direction, and the lower surface of the rubber buffer strip (15) is provided with an asphalt water-blocking layer (16), which is used to abut against the bottom plate of the underground building.

8. A double-wall partition structure for waterproofing and moisture-proofing underground buildings according to claim 1, characterized in that: Each frame strip of the frame (11) is provided with a clamping assembly (14). The clamping assembly (14) includes a pressure plate (141) and a screw fastening assembly (142). The pressure plate (141) is connected to the frame strip of the frame (11) through the screw fastening assembly. The pressure plate (141) and the frame strip of the frame (11) together clamp the edge of the waterproof layer (12).