Post-cast strip advanced water stop cushion layer structure

Abstract

The utility model relates to the technical field of concrete structures, in particular to a post-cast strip advanced water stop cushion structure which is characterized in that the post-cast strip advanced water stop cushion structure comprises a post-cast strip layer, a filling layer and a concrete cushion which are arranged from top to bottom, and the vertical section of the concrete cushion is in an inverted isosceles trapezoid shape to form a pit for containing the filling layer; the filling layer comprises a first connecting part, a second connecting part and an elastic filling part, the first connecting part and the second connecting part are symmetrically arranged, the first connecting part and the second connecting part are arranged in a spaced mode in the horizontal direction to form a water stop caulking joint, and the elastic filling part is arranged in the water stop caulking joint; the post-cast strip layer seals an upper end opening of the water stop caulking joint, a waterproof layer is laid between the filling layer and the concrete cushion layer, and the waterproof layer seals a lower end opening of the water stop caulking joint. The waterproof structure has the effect of being beneficial to improving the waterproof effect.

Description

Technical Field

[0001] The present application relates to the technical field of concrete structures, and in particular to a post-cast strip advance water-stopping cushion structure. Background Art

[0002] After the foundation is completed, the subsequent processes such as exterior wall waterproofing and earth backfilling can be carried out. After the main body is completed, the concrete of the post-casting strip is poured. This waterstop used in the post-casting strip position and poured before the post-casting strip is called an advanced waterstop.

[0003] However, the existing advance waterstop usually uses a plain concrete cushion layer, which is a kind of concrete without steel bars. The plain concrete cushion layer is easily impacted by groundwater pressure and cracks are generated, thereby reducing the waterproof effect of the advance waterstop cushion layer. Utility Model Content

[0004] In order to improve the waterproof effect, the present application provides a post-cast strip advance water-stopping cushion structure.

[0005] The present application provides a post-casting belt advance water-stopping cushion structure, which adopts the following technical solutions:

[0006] A post-cast tape advance water-stop cushion structure, comprising a post-cast tape layer, a filling layer and a concrete cushion layer arranged from top to bottom, the vertical cross-section of the concrete cushion layer is arranged in an inverted isosceles trapezoid to form a pit for accommodating the filling layer, the filling layer comprises a first connecting part, a second connecting part and an elastic filling part, the first connecting part and the second connecting part are symmetrically arranged, and the first connecting part and the second connecting part are spaced apart in the horizontal direction to form a water-stop caulking, the elastic filling part is arranged in the water-stop caulking, the post-cast tape layer seals the upper end of the water-stop caulking, a waterproof layer is laid between the filling layer and the concrete cushion layer, and the waterproof layer seals the lower end of the water-stop caulking.

[0007] By adopting the above technical solution, the water-stopping caulking allows a buffer space to be provided between the first connection part and the second connection part. The elastic filling part is arranged in the water-stopping caulking. The elastic filling part can provide buffering while closing the water-stopping caulking, which is beneficial to preventing the first connection part and the second connection part from generating cracks due to uneven expansion or contraction. The waterproof layer is arranged between the filling layer and the concrete cushion layer to seal the lower port of the water-stopping caulking, and the post-cast tape layer seals the upper port of the water-stopping caulking, which is beneficial to improving the waterproof effect.

[0008] Preferably, a waterstop strip for sealing the waterstop caulking is provided on the upper surface of the waterproof layer, and the length of the waterstop strip is greater than the width of the waterstop caulking.

[0009] By adopting the above technical solution, the length of the waterstop is greater than the width of the waterstop joint, and the waterstop is arranged on the upper surface of the waterproof layer to seal the lower end of the waterstop joint, which is beneficial to further improve the waterproof effect.

[0010] Preferably, a cushion layer reinforcing steel mesh is arranged inside the concrete cushion layer along its covering surface direction.

[0011] By adopting the above technical solution, arranging a cushion reinforcing steel mesh inside the concrete cushion is beneficial to improving the structural strength of the concrete cushion, making it difficult for the concrete cushion to crack due to groundwater pressure, thereby helping to improve the waterproof effect.

[0012] Preferably, the first connection part and the second connection part are both provided with filling and reinforcing steel meshes, and the filling and reinforcing steel meshes located inside the first connection part and the filling and reinforcing steel meshes located inside the second connection part are symmetrically arranged relative to the elastic filling part.

[0013] By adopting the above technical solution, the setting of the filling and reinforcing steel mesh is beneficial to improving the structural strength of the first connection part and the second connection part. The filling and reinforcing steel mesh located inside the first connection part and the filling and reinforcing steel mesh located inside the second connection part are symmetrically arranged relative to the elastic filling part, so that the collision or contraction state of the first connection part and the second connection part are symmetrical, which is beneficial to further prevent the first connection part and the second connection part from generating cracks due to uneven expansion or contraction.

[0014] Preferably, the post-cast strip layer includes a post-cast strip portion, the post-cast strip portion is located directly above the water-stop caulking joint, and the post-cast strip layer is provided with partition steel meshes at two opposite sides of the post-cast strip portion.

[0015] By adopting the above technical solution, the upper end of the water-stop joint of the post-cast strip is sealed and the steel mesh is separated, which is beneficial to strengthening the structural strength of the post-cast strip.

[0016] Preferably, the filling and reinforcing steel mesh extends obliquely upward to the inside of the post-cast strip layer.

[0017] By adopting the above technical solution, this arrangement is beneficial to improving the structural strength when the first connecting part and the second connecting part are connected to the post-cast strip layer.

[0018] Preferably, the post-cast strip layer further includes a fine stone concrete protection portion, and the fine stone concrete protection portion is located on two opposite sides of the post-cast strip portion.

[0019] By adopting the above technical solution, the fine stone concrete protection part protects the advanced water-stop cushion structure of the post-cast strip, which is beneficial to improving stability.

[0020] Preferably, the elastic filling portion is configured as a polystyrene foam portion.

[0021] By adopting the above technical solution, the polystyrene foam has brittleness and elasticity, and has a good buffering effect on the expansion or contraction process of the first connecting part and the second connecting part.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By arranging the post-cast tape layer, the filling layer and the concrete cushion layer, the water-stop caulking allows a buffer space to be provided between the first connection part and the second connection part. The elastic filling part is arranged in the water-stop caulking. The elastic filling part can provide buffering while closing the water-stop caulking, which is beneficial to preventing the first connection part and the second connection part from generating cracks due to uneven expansion or contraction. The waterproof layer is arranged between the filling layer and the concrete cushion layer to seal the lower port of the water-stop caulking, and the post-cast tape layer seals the upper port of the water-stop caulking, which is beneficial to improving the waterproof effect.

[0024] 2. By setting a waterstop, the waterstop is set on the upper surface of the waterproof layer to seal the lower end of the waterstop joint, which is beneficial to further improve the waterproof effect.

[0025] 3. By setting the cushion reinforcement steel mesh, the filling reinforcement steel mesh and the partition steel mesh, the cushion reinforcement steel mesh is beneficial to improving the structural strength of the concrete cushion, making it difficult for the concrete cushion to crack due to groundwater pressure, the filling reinforcement steel mesh is beneficial to improving the structural strength of the first connection part and the second connection part, and the partition steel mesh is beneficial to strengthening the structural strength of the post-casting strip part, thereby helping to improve the waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the advanced water-stopping cushion structure of the post-cast strip in the embodiment of the present application.

[0027] Figure 2 It is a vertical cross-sectional view of the advanced water-stopping cushion structure of the post-cast zone in the embodiment of the present application.

[0028] Description of reference numerals:

[0029] 1. Post-cast strip layer; 11. Post-cast strip part; 12. Fine stone concrete protection part; 2. Filling layer; 21. First connection part; 22. Second connection part; 23. Elastic filling part; 3. Concrete cushion layer; 4. Water-stop caulking; 5. Waterproof layer; 6. Water-stop strip; 7. Cushion reinforcement steel mesh; 8. Filling reinforcement steel mesh; 9. Partition steel mesh. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-2 This application is described in further detail.

[0031] The present application embodiment discloses a post-cast belt advanced water-stopping cushion structure, referring to Figure 1 and Figure 2 , including a post-cast strip layer 1, a filling layer 2 and a concrete cushion layer 3 arranged from top to bottom. The vertical cross-section of the concrete cushion layer 3 is arranged in an inverted isosceles trapezoid to form a pit for accommodating the filling layer 2. At the same time, a cushion layer reinforcing steel mesh 7 is arranged inside the concrete cushion layer 3 along its covering surface direction. The cushion layer reinforcing steel mesh 7 is beneficial to improving the structural strength of the concrete cushion layer 3, making it difficult for the concrete cushion layer 3 to crack due to groundwater pressure, thereby helping to improve the waterproof effect.

[0032] Reference Figure 1 and Figure 2 The filling layer 2 includes a first connection part 21, a second connection part 22 and an elastic filling part 23. The first connection part 21 and the second connection part 22 are symmetrically arranged inside the pit, and the first connection part 21 and the second connection part 22 are arranged at intervals in the horizontal direction, so that the middle position of the filling layer 2 forms a water-stopping caulking 4 in the vertical direction. The elastic filling part 23 is arranged in the water-stopping caulking 4. In this embodiment, the elastic filling part 23 is set as a polystyrene foam part. The polystyrene foam has brittleness and elasticity to improve the buffering effect when the first connection part 21 and the second connection part 22 expand or contract. At the same time, the post-casting tape layer 1 seals the upper end of the water-stopping caulking 4, and a waterproof layer 5 is laid between the filling layer 2 and the concrete cushion layer 3. The waterproof layer 5 seals the lower end of the water-stopping caulking 4 to improve the waterproof effect. In this embodiment, the waterproof layer 5 adopts a five-layer waterproof roll to ensure waterproof performance.

[0033] Reference Figure 1 and Figure 2 The upper surface of the waterproof layer 5 is provided with a waterstop 6 for sealing the lower end of the waterstop caulking 4. The length of the waterstop 6 is greater than the width of the waterstop caulking 4 to improve the sealing performance, thereby facilitating the prevention of groundwater infiltration. It should be noted that the waterstop 6 is in the form of external pasting to facilitate the construction of the post-casting belt advance waterstop cushion structure.

[0034] Reference Figure 1 and Figure 2 The first connection part 21 and the second connection part 22 are both made of concrete, and the first connection part 21 and the second connection part 22 are both provided with a filling reinforcement steel mesh 8, and the filling reinforcement steel mesh 8 located inside the first connection part 21 and the filling reinforcement steel mesh 8 located inside the second connection part 22 are symmetrically arranged relative to the elastic filling part 23 to improve the structural strength of the first connection part 21 and the second connection part 22. It should be noted that the filling reinforcement steel mesh 8 extends obliquely upward to the inside of the post-casting strip layer 1 to improve the stability of the connection between the filling layer 2 and the post-casting strip layer 1.

[0035] Reference Figure 1 and Figure 2The post-cast strip layer 1 includes a post-cast strip portion 11, which is located directly above the water-stop caulking joint 4 to seal the upper end of the water-stop caulking joint 4. The post-cast strip portion 11 is supported by concrete. At the same time, the post-cast strip layer 1 is provided with a partition steel mesh 9 on both sides of the post-cast strip portion 11 to improve the structural strength of the post-cast strip portion 11. In addition, the post-cast strip layer 1 also includes a fine stone concrete protection portion 12, which is located on both sides of the post-cast strip portion 11 to protect the post-cast strip advanced water-stop cushion structure.

[0036] The implementation principle of the post-cast tape advance water-stop cushion structure in the embodiment of the present application is as follows: the polystyrene foam part is filled in the water-stop caulking joint 4 for sealing operation, and the expansion or contraction of the first connection part 21 and the second connection part 22 is buffered, which is beneficial to prevent the first connection part 21 and the second connection part 22 from cracking due to uneven expansion or contraction. The waterproof layer 5 and the water-stop tape 6 are arranged between the filling layer 2 and the concrete cushion layer 3 to seal the lower end of the water-stop caulking joint 4, and the post-cast tape layer 1 seals the upper end of the water-stop caulking joint 4, which is beneficial to improve the waterproof effect, and the cushion layer reinforcing steel mesh 7 is arranged inside the concrete cushion layer 3, which is beneficial to improve the structural strength of the concrete cushion layer 3, so that the concrete cushion layer 3 is difficult to crack due to groundwater pressure, which is beneficial to further improve the waterproof effect.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A post-casting belt advanced water-stopping cushion structure, characterized in that: The invention comprises a post-cast strip layer (1), a filling layer (2) and a concrete cushion layer (3) which are arranged from top to bottom. The vertical cross-section of the concrete cushion layer (3) is arranged in an inverted isosceles trapezoidal shape to form a pit for accommodating the filling layer (2). The filling layer (2) comprises a first connecting part (21), a second connecting part (22) and an elastic filling part (23). The first connecting part (21) and the second connecting part (22) are arranged symmetrically, and the first connecting part (21) and the second connecting part (22) are arranged at intervals in the horizontal direction to form a water-stopping caulking (4). The elastic filling part (23) is arranged in the water-stopping caulking (4). The post-cast strip layer (1) seals the upper end of the water-stopping caulking (4). A waterproof layer (5) is laid between the filling layer (2) and the concrete cushion layer (3). The waterproof layer (5) seals the lower end of the water-stopping caulking (4).

2. The post-cast strip advanced water-stop cushion structure according to claim 1 is characterized in that: The upper surface of the waterproof layer (5) is provided with a waterstop strip (6) for sealing the waterstop caulking (4); the length of the waterstop strip (6) is greater than the width of the waterstop caulking (4).

3. The post-cast strip advanced water-stop cushion structure according to claim 1 is characterized in that: A cushion layer reinforcing steel mesh (7) is arranged inside the concrete cushion layer (3) along the covering surface direction thereof.

4. The post-cast strip advanced water-stop cushion structure according to claim 1 is characterized in that: The first connecting portion (21) and the second connecting portion (22) are both provided with a filling and reinforcing steel mesh (8), and the filling and reinforcing steel mesh (8) located inside the first connecting portion (21) and the filling and reinforcing steel mesh (8) located inside the second connecting portion (22) are symmetrically arranged relative to the elastic filling portion (23).

5. The post-cast strip advanced water-stop cushion structure according to claim 1 is characterized in that: The post-cast strip layer (1) comprises a post-cast strip portion (11), wherein the post-cast strip portion (11) is located directly above the water-stopping joint (4), and the post-cast strip layer (1) is provided with partition steel meshes (9) at positions on opposite sides of the post-cast strip portion (11).

6. The post-cast strip advanced water-stop cushion structure according to claim 4 is characterized in that: The filling and reinforcing steel mesh (8) extends obliquely upward to the interior of the post-cast strip layer (1).

7. The post-cast strip advanced water-stopping cushion structure according to claim 5 is characterized in that: The post-cast strip layer (1) further comprises a fine stone concrete protection portion (12), and the fine stone concrete protection portion (12) is located on two opposite sides of the post-cast strip portion (11).

8. The post-cast strip advanced water-stop cushion structure according to claim 1 is characterized in that: The elastic filling part (23) is configured as a polystyrene foam part.

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