A waterproof structure for basement outer wall post-pouring belt

Abstract

This utility model relates to a waterproof structure for post-cast strips in basement exterior walls. The post-cast strip is surrounded by a U-shaped brick wall, forming a cavity between the strip and the wall. Ring beams are evenly arranged along the height of the brick wall, and a steel mesh is installed inside the cavity. During concrete pouring, the post-cast strip and the cavity are poured together. After pouring, a waterproof membrane and a protective layer are laid on the outside of the brick wall to achieve waterproofing. This utility model strengthens the self-waterproofing structure of the post-cast strip through the brick wall structure, and the waterproof layer laid on the outside of the brick wall is more airtight than a waterproof layer laid directly on the post-cast strip, thus enhancing the waterproofing effect.

Description

Technical Field

[0001] This utility model belongs to the field of building construction, specifically relating to a waterproof structure for post-pouring strips on basement exterior walls. Background Technology

[0002] After the concrete is poured, the subsequent application of waterproof membrane and coating in the construction of post-cast strips on basement exterior walls still poses a significant risk of water seepage. This is due to two main factors: firstly, the concrete interface at the post-cast strip location is not sufficiently dense; secondly, the waterproof membrane is laid directly at the construction joint of the post-cast strip, which can easily lead to hollow areas and misalignment. These two factors combined result in a greater risk of water seepage at the post-cast strip location compared to a basement exterior wall formed in one continuous pour. Utility Model Content

[0003] To address this issue, this invention proposes a waterproof structure for the post-cast strip of basement exterior walls. This structure involves building a brick wall around the post-cast strip to enclose it. This ensures the reinforcement of the concrete structure within the brick wall while allowing for a tight application of the waterproof membrane on the outside. By combining structural self-waterproofing and flexible waterproofing, the potential for water seepage at the post-cast strip location in the basement exterior walls is significantly reduced.

[0004] This utility model is achieved through the following scheme: a brick wall for building on the outside of the post-pouring strip of the basement exterior wall and surrounding the post-pouring strip; a cavity communicating with the post-pouring strip is formed between the brick wall and the basement exterior wall; a casting body for casting together with the post-pouring strip into the cavity; and a waterproof layer laid on the outer surface of the brick wall.

[0005] A further improvement of this utility model for the waterproof structure of the post-cast strip of the basement exterior wall is that the cast-in-place material is a micro-expansion concrete with a strength grade one higher than the concrete used in the basement exterior wall.

[0006] A further improvement of this utility model for the waterproof structure of the post-pouring strip of the basement exterior wall is that it also includes two water-stop steel plates set at the walls on both sides of the post-pouring strip. One end of the water-stop steel plate is embedded in the wall of the basement exterior wall, and the other end extends to the post-pouring strip.

[0007] A further improvement of this utility model for the waterproof structure of post-cast strips for basement exterior walls is that it also includes a cushion layer poured at the bottom of the post-cast strip and at the bottom of the cavity, and the casting body is directly poured on the cushion layer.

[0008] A further improvement of this utility model for the waterproof structure of the post-pouring strip of the basement exterior wall is that: the brick wall is provided with at least two ring beams at intervals along the height direction, and one ring beam is located at the bottom of the brick wall, and the ring beam is provided along the entire length of the brick wall.

[0009] A further improvement of this utility model for the waterproof structure of post-cast strips on basement exterior walls is that a steel mesh for reinforcing the cast-in-place structure is provided inside the cavity.

[0010] A further improvement of this utility model for the waterproof structure of post-pouring strips on basement exterior walls is that the waterproof layer includes a waterproof membrane laid on the outer surface of the brick wall and a waterproof membrane protective layer installed on the outer layer of the waterproof membrane.

[0011] A further improvement of this utility model for the waterproof structure of the post-pouring strip of the basement exterior wall is that the height of the brick wall is the same as the height of the basement exterior wall.

[0012] This utility model uses a brick wall to surround the post-pouring strip, so that the post-pouring strip and the cavity inside the brick wall are poured together during the pouring process. This enhances the structure's self-waterproofing, and the waterproof membrane laid on the outside of the brick wall can also be more tightly sealed, improving the reliability of flexible waterproofing and reducing the risk of water seepage from the post-pouring strip. Attached Figure Description

[0013] Figure 1 This is a top view schematic diagram of the waterproof structure of the post-pouring strip for the exterior wall of the basement according to this utility model.

[0014] Figure 2 This is a side view of the waterproof structure of the post-cast strip for the exterior wall of the basement, according to the present invention.

[0015] In the diagram: 1. Brick wall; 2. Waterproof layer; 3. Water-stop steel plate; 4. Basement exterior wall; 5. Ring beam; 6. Post-pouring strip; 7. Cavity; 8. Steel mesh. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] The utility model provides, for example Figures 1-2 The waterproof structure shown is for a post-cast strip of an exterior wall of a basement, including a brick wall 1 built of solid shale bricks on the outside of the post-cast strip. The height of the brick wall 1 is equal to that of the exterior wall of the basement. The brick wall 1 surrounds the post-cast strip 6 in a U-shape. A ring beam 5 is set at the bottom of the brick wall 1, and then ring beams 5 are set along the wall at a interval of one for each section of height.

[0018] like Figure 1As shown, the solid shale bricks used for the brick wall 1 are 200mm thick. The post-pouring strip 6 is surrounded by a U-shaped structure formed by the three brick walls 1. The brick walls 1 on both sides of the post-pouring strip 6 are respectively set at 400mm on both sides of the post-pouring strip. The brick wall 1 parallel to the basement exterior wall 4 is located at 400mm away from the wall surface of the basement exterior wall 4. A cavity 7 is formed between the U-shaped structure and the basement exterior wall 4. Water-stop steel plates 3 are embedded on both sides of the post-pouring strip 6 to further prevent groundwater from seeping in.

[0019] like Figure 2 As shown, a ring beam 5 is installed at the bottom of the brick wall 1. Ring beams 5 are installed every 2 meters along the wall, reinforced with 4C10 steel, and run the entire length of the wall. The selected ring beam 5 has a size of 200*300mm. During the pouring of the concrete for the post-pouring strip 6, it is poured simultaneously with the inner cavity 7 of the brick wall 1 to form a cast-in-place structure. A C8@200×200mm steel mesh 8 is installed inside the cavity 7 to prevent cracking of the cast-in-place structure after pouring.

[0020] like Figure 1 As shown, a waterproof membrane is laid on the outside of the brick wall 1. The waterproof membrane is reinforced according to the treatment method for inside and outside corners. After the waterproof membrane is installed, a 60mm extruded polystyrene board is used as a protective layer for the waterproof membrane. The waterproof membrane and the waterproof membrane protective layer together constitute the waterproof layer 2.

[0021] After the construction is completed, it is only necessary to pour the post-pouring strip 6 and the cavity 7 generated by the U-shaped structure at the same time. When pouring the post-pouring strip 6, micro-expansion concrete with a higher strength grade should be used. A cushion layer is poured at the bottom of the post-pouring strip 6 and the cavity 7. After the pouring is completed, waterproof membrane and extruded polystyrene board are laid on the outer side of the brick wall 1.

[0022] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof structure for post-cast strips in basement exterior walls, characterized in that, include: A brick wall used for building on the outside of the basement exterior wall and surrounding the post-pouring strip; a cavity communicating with the post-pouring strip is formed between the brick wall and the basement exterior wall; The casting body is used to be cast together with the post-cast strip into the cavity; a waterproof layer is laid on the outer surface of the brick wall; and a steel mesh is provided inside the cavity to reinforce the casting body.

2. The waterproof structure of the post-cast strip of the basement exterior wall as described in claim 1, characterized in that: The casting material is micro-expansion concrete with a strength grade one grade higher than the concrete used for the basement exterior walls.

3. The waterproof structure of the post-cast strip of the basement exterior wall as described in claim 1, characterized in that: It also includes two water-stop steel plates installed on both sides of the post-pouring strip, with one end of the water-stop steel plate embedded in the wall of the basement exterior wall and the other end extending to the post-pouring strip.

4. The waterproof structure of the post-cast strip of the basement exterior wall as described in claim 1, characterized in that: It also includes a cushion layer poured at the bottom of the post-cast strip and at the bottom of the cavity, and the casting body is poured directly onto the cushion layer.

5. The waterproof structure of the post-cast strip of the basement exterior wall as described in claim 1, characterized in that: The brick wall is provided with at least two ring beams at intervals along its height, and one ring beam is located at the bottom of the brick wall. The ring beams are provided along the entire length of the brick wall.

6. The waterproof structure of the post-cast strip of the basement exterior wall as described in claim 1, characterized in that: The waterproof layer includes a waterproof membrane laid on the outer surface of the brick wall and a waterproof membrane protective layer installed on the outer layer of the waterproof membrane.

7. The waterproof structure of the post-cast strip of the basement exterior wall as described in claim 1, characterized in that: The height of the brick wall is the same as the height of the basement exterior wall.

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