Waterproof and anti-seepage basement shear wall structure

Abstract

The utility model discloses a waterproof anti -infiltration's basement shear wall structure belongs to building structure engineering field. The structure includes concrete shear wall body, its innovation point lies at: the soil side surface of shear wall body is sequentially provided with polymer cement waterproof bonding layer, high -performance waterproof coiled material layer and concave -convex type plastic protection plate, in the inside of shear wall body, along its height direction is provided with the built -in waterproof hidden beam made of galvanized steel sheet, is provided with the integrated composite drainage waterstop component at the junction of shear wall body and basement floor. Through above -mentioned outer defense, inner guide, the composite structure design of node reinforcement, the utility model, through the cooperation of each device above, constitutes the multiple waterproof defense line, has improved the integrity of basement shear wall, waterproof anti -infiltration capacity and durability significantly, has solved the leakage hidden danger of traditional structure effectively, and the anti -infiltration effect is good.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically a waterproof and seepage-proof basement shear wall structure. Background Technology

[0002] Basement shear walls are critical vertical components that withstand earth and water pressure, and their waterproofing and seepage prevention performance directly affects the functionality and structural safety of the underground space. Traditional basement shear wall waterproofing mainly relies on single waterproof concrete (structural self-waterproofing) and external waterproof membranes, which has the following drawbacks: Once the external waterproof layer is damaged during construction or use, pressurized water can directly penetrate through the concrete, leading to leakage. The internal corners where the wall meets the floor slab are stress concentration and deformation-sensitive areas, and traditional waterstops are complex to construct and prone to becoming weak points. Traditional structures can only provide passive waterproofing; when external waterproofing fails, they cannot guide and drain the infiltrated water. Concrete shrinkage and temperature stress can easily cause micro-cracks in the wall, creating seepage channels.

[0003] Therefore, there is a need for an integrated waterproof shear wall structure that combines multiple lines of defense, reinforces nodes, and has a certain degree of active drainage capability. Utility Model Content

[0004] This utility model provides a waterproof and seepage-proof basement shear wall structure, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and seepage-proof basement shear wall structure, comprising a concrete shear wall body and a basement floor slab, wherein the soil-facing surface of the shear wall body is provided with, from the inside to the outside, the following: Polymer cement waterproof adhesive layer; High-performance waterproof membrane layer; And, embossed plastic protective panels.

[0006] As a preferred technical solution of this application, the shear wall body is provided with an internal waterproof hidden beam along its height direction. The internal waterproof hidden beam is a U-shaped channel structure made of galvanized steel plate.

[0007] As a preferred technical solution of this application, an integrally formed composite drainage and water-stopping component is provided at the junction of the shear wall body and the basement floor slab, the component comprising: Water-stop steel plates are embedded in the shear wall body and the basement floor slab; Drainage blind pipes installed at corners; And, a permeable filter soil layer covering the inlet of the drainage blind pipe.

[0008] As a preferred technical solution of this application, the high-performance waterproof membrane layer is a polymer self-adhesive waterproof membrane.

[0009] As a preferred technical solution of this application, the recessed portion of the convex-concave plastic protective plate forms a drainage channel.

[0010] As a preferred technical solution of this application, the U-shaped groove opening of the built-in waterproof hidden beam faces the soil-facing side and is fixedly connected to the steel reinforcement skeleton of the shear wall body through anchor bars.

[0011] As a preferred technical solution of this application, the concrete of the concrete shear wall body is waterproof concrete with a permeability grade of not less than P.

[0012] This invention forms a four-tiered protection system consisting of an external waterproof layer, a self-waterproofing structure, a metal water-blocking strip, and drainage at joints, significantly improving the reliability and durability of the waterproofing system. The combination of the external flexible waterproof layer and the internal rigid waterproof concrete and metal concealed beams can adapt to certain structural deformations, effectively suppressing and blocking cracks. Furthermore, the drainage system installed at the joints actively drains seepage water, effectively addressing leakage. Attached Figure Description

[0013] Figure 1 This is a structural diagram of a waterproof and seepage-proof basement shear wall structure. Figure 2 A schematic diagram of a waterproof and seepage-proof basement shear wall structure with a water-stop steel plate and a drainage blind pipe structure; Figure 3 This is a schematic diagram of a waterproof and seepage-proof basement shear wall structure with built-in waterproof hidden beams and anchor bars.

[0014] In the diagram: 1. Concrete shear wall body; 2. Polymer cement waterproof bonding layer; 3. High-performance waterproof membrane layer; 4. Concave-convex plastic protective board; 5. Built-in waterproof hidden beam; 51. Anchor bar; 6. Basement floor slab; 7. Composite drainage and water-stopping components; 71. Water-stopping steel plate; 72. Drainage blind pipe; 73. Permeable filter soil layer. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0016] Reference Figure 1-3This utility model provides a waterproof and seepage-proof basement shear wall structure, including a concrete shear wall body 1 and a basement floor slab 6. The soil-facing surface of the shear wall body 1 is provided with the following from the inside to the outside: a polymer cement waterproof bonding layer 2; a high-performance waterproof membrane layer 3; and a textured plastic protective plate 4. First, a polymer cement waterproof adhesive layer 2 is applied to the soil-facing surface of the cured shear wall body 1. Then, a high-performance waterproof membrane layer 3 is laid on top of the wall. Subsequently, a textured plastic protective board 4 is installed, with its protrusions facing the waterproof membrane layer. The boards are connected to each other by snap-fit. These three layers constitute the first layer of the system. The adhesive layer ensures adhesion, the waterproof membrane layer provides core flexible waterproofing, and the protective board protects the waterproof layer from damage by backfill soil. The air layer formed by its textured structure also plays a role in buffering and assisting drainage.

[0017] To effectively prevent cracks from developing along the height of the wall and improve the overall structural impermeability, an internal waterproof concealed beam 5 is installed inside the shear wall body 1 along its height. This concealed waterproof beam 5 is a U-shaped channel structure made of galvanized steel sheet; because it is made of galvanized steel sheet and cast into the concrete along with the reinforcing steel frame, it acts as a metal barrier, effectively preventing cracks from developing along the height of the wall, improving the overall structural impermeability, and forming a second internal barrier.

[0018] To enhance waterproofing at weak points and drain any potential intrusion, an integrally formed composite drainage and water-stopping component 7 is installed at the junction of the shear wall body 1 and the basement floor slab 6. This component includes: a water-stopping steel plate 71 embedded in both the shear wall body 1 and the basement floor slab 6; a drainage blind pipe 72 located at the corner; and a permeable filter layer 73 covering the inlet of the drainage blind pipe 72. This component integrates the water-stopping steel plate 71, the drainage blind pipe 72, and the permeable filter layer 73. The water-stopping steel plate 71 cuts off the core seepage path, the drainage blind pipe 72 collects and diverts any potential intrusion, and the permeable filter layer 73 prevents soil from clogging the blind pipe 72, thus providing targeted reinforcement to weak waterproofing points.

[0019] To ensure a tight and reliable full adhesion and prevent water seepage, the third layer of the high-performance waterproof membrane is a polymer self-adhesive waterproof membrane. This membrane possesses excellent properties such as high durability, corrosion resistance, crack resistance, and environmental friendliness, ensuring a tight and reliable full adhesion, preventing water seepage, and enhancing the overall integrity and reliability of the waterproof system.

[0020] To achieve active drainage and improve the reliability of the waterproof layer, the recessed portion of the embossed plastic protective plate 4 forms a drainage channel. When external water intrudes, the drainage channel guides the water flow and smoothly drains it away through the bottom blind drain pipe 72. This effectively eliminates the hydrostatic pressure on the surface of the waterproof membrane, transforming passive waterproofing into active drainage and reducing the risk of leakage.

[0021] To optimize the seepage prevention path and ensure structural integration, the U-shaped opening of the built-in waterproof concealed beam 5 faces the soil-facing side and is fixedly connected to the steel reinforcement skeleton of the shear wall body 1 through anchor bars 51. The U-shaped opening facing the soil-facing side allows this metal barrier to most effectively block water flow attempting to seep inward along the cracks. The structural layout is more reasonable, and the seepage prevention efficiency is high. The fixed connection between the concealed beam and the concrete wall reinforcement skeleton through anchor bars 51 ensures that the concealed beam and the concrete wall can deform together and share the load, enhancing the effectiveness of the concealed beam as an internal waterproof component and the overall structural integrity.

[0022] To enhance the impermeability of the concrete shear wall body 1, the concrete of the concrete shear wall body 1 is waterproof concrete with an impermeability grade of not less than P8. P8 grade concrete itself has high density and can resist high water pressure, providing a solid foundation for the entire composite waterproof system.

[0023] Working principle: A polymer cement waterproof adhesive layer 2 is applied to the soil-facing surface of the shear wall body 1, followed by a full-coverage high-performance waterproof membrane layer 3 of self-adhesive polymer waterproof membrane. Subsequently, a textured plastic protective plate 4 is installed, with its protrusions facing the waterproof membrane layer. The plates are connected by snap-fit ​​connections. These three layers constitute the first layer of the system. The self-adhesive waterproof membrane of the adhesive layer possesses excellent properties such as high durability, corrosion resistance, crack resistance, and environmental friendliness, ensuring tight and reliable adhesion, preventing water seepage, and improving the overall integrity and reliability of the waterproof system. The waterproof membrane layer provides core flexible waterproofing, while the protective plate protects the waterproof layer from damage by backfill soil. The air layer formed by its textured structure also acts as a buffer and assists in drainage. The waterproof concealed beam 5 is made of galvanized steel sheet in a U-shaped channel shape and is cast into the concrete along with the reinforcing steel frame. As a metal barrier, it effectively blocks cracks that develop along the height of the wall, improving the overall impermeability and continuity of the structure, forming a second internal barrier. Through anchor bars 51, it is fixedly connected to the wall's steel reinforcement frame, ensuring that the concealed beam and the concrete wall can deform and share the load, enhancing the effectiveness of the concealed beam as an internal waterproofing component and the overall structural integrity. The water-stop steel plate 71 cuts off the core seepage path, the drainage blind pipe 72 collects any small amount of water that may intrude and guides it away, and the permeable filter layer 73 prevents soil from clogging the blind pipe 72, allowing for targeted reinforcement of weak points in the waterproofing. It effectively eliminates the hydrostatic pressure on the surface of the waterproof membrane, transforming passive waterproofing into active drainage, reducing the risk of leakage.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waterproof and seepage-proof basement shear wall structure, comprising a concrete shear wall body (1) and a basement floor slab (6), characterized in that: The concrete shear wall body (1) has the following features arranged sequentially from the inside to the outside on its soil-facing side surface: Polymer cement waterproof bonding layer (2); High-performance waterproof membrane layer (3); And, the convex-concave plastic protective plate (4).

2. The waterproof and seepage-proof basement shear wall structure according to claim 1, characterized in that: Inside the concrete shear wall body (1), a built-in waterproof hidden beam (5) is provided along its height direction. The built-in waterproof hidden beam (5) is a U-shaped channel structure made of galvanized steel plate.

3. The waterproof and seepage-proof basement shear wall structure according to claim 1, characterized in that: An integrally formed composite drainage and water-stopping component (7) is provided at the junction of the concrete shear wall body (1) and the basement floor slab (6), the component comprising: Water-stop steel plate (71) pre-embedded in the concrete shear wall body (1) and the basement floor slab (6); Drainage blind pipe (72) installed at the corner; And, a permeable filter layer (73) covering the inlet of the drainage blind pipe (72).

4. A waterproof and seepage-proof basement shear wall structure according to claim 1, characterized in that: The high-performance waterproof membrane layer (3) is a polymer self-adhesive waterproof membrane.

5. A waterproof and seepage-proof basement shear wall structure according to claim 1, characterized in that: The recessed portion of the convex-concave plastic protective plate (4) forms a drainage channel.

6. A waterproof and seepage-proof basement shear wall structure according to claim 2, characterized in that: The U-shaped groove opening of the built-in waterproof hidden beam (5) faces the soil-facing side and is fixedly connected to the steel reinforcement skeleton of the concrete shear wall body (1) through anchor bars (51).

7. A waterproof and seepage-proof basement shear wall structure according to claim 1, characterized in that: The concrete of the concrete shear wall body (1) is waterproof concrete with a permeability grade of not less than P8.

Images