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Waterproof structure of structure bottom plate and construction method

A waterproof structure and construction method technology, which is applied in the direction of basic structure engineering, water conservancy engineering, underwater structures, etc., can solve the problems of waterproof membrane damage, violation, and increased safety risks of foundation pits, and achieve the effect of saving operation time

Pending Publication Date: 2020-03-24
CHINA RAILWAY 16 BUREAU GRP BEIJING METRO ENG CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the waterproof structure and the waterproof protective layer can effectively protect the waterproof membrane from being damaged during structural construction, there are the following disadvantages: 1. It is not conducive to the rapid construction of the structural bottom plate
The construction of the bottom slab structure needs to wait until the concrete waterproof protective layer is poured, and then the construction reaches the design strength, which greatly prolongs the closure time of the foundation pit bottom slab and increases the safety risk of the foundation pit
2. It violates the core of the pre-paved waterproof membrane is to make the waterproof membrane and the concrete structural floor fully adhere
The waterproof membrane cannot be in direct contact with the bottom plate of the base structure, which may cause damage to the waterproof membrane. Although the water passes through the membrane, it is between the waterproof protective layer and the base structure.

Method used

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  • Waterproof structure of structure bottom plate and construction method
  • Waterproof structure of structure bottom plate and construction method
  • Waterproof structure of structure bottom plate and construction method

Examples

Experimental program
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Effect test

no. 1 example

[0044] Please refer to figure 1 and figure 2 , the present embodiment provides a waterproof structure of a structural bottom plate, which includes a waterproof layer 100 and a permeable layer 200;

[0045]One of the faces of the permeable layer 200 is in contact with the waterproof layer 100; the other face of the permeable layer 200 is used for laying the structural floor;

[0046] The permeable layer 200 is provided with a slit 201, and the slit 201 can pass the slurry of the structural bottom plate.

[0047] In this embodiment, the waterproof layer 100 is the main body of the waterproof structure. One of the surfaces of the waterproof layer 100 is laid on the excavation surface, and the other surface of the waterproof layer 100 covers the above-mentioned permeable layer 200. Since the permeable layer 200 There is a gap 201 enough for the slurry to pass through the structural bottom plate, so after pouring the slurry for the structural bottom plate, the slurry will pass t...

no. 2 example

[0062] Please refer to image 3 , the present embodiment provides a construction method for a waterproof structure of a structural bottom plate, which includes:

[0063] Covering the permeable layer 200 on one surface of the waterproof layer;

[0064] Laying the other side of the waterproof layer on the excavation surface 700;

[0065] The laying of the waterproof layer is checked.

[0066] Specifically, the waterproof layer adopts a polymer self-adhesive film waterproof roll material 500, and a layer of non-stick permeable layer 200 is arranged on the outside of the polymer self-adhesive film waterproof roll material. The non-stick permeable layer 200 has both non-stick Adhesive properties, and there are enough gaps 201, non-stick properties provide convenience for construction, the gaps 201 facilitate the penetration of subsequent concrete slurry (slurry of the structural floor 300), and have physical or chemical crosslinking reactions with the self-adhesive adhesive layer...

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Abstract

The invention provides a waterproof structure of a structure bottom plate and a construction method, and relates to the technical field of building waterproofness. The waterproof structure of the structure bottom plate comprises a waterproof layer and a permeable layer. One face of the permeable layer makes contact with the waterproof layer. The other face of the permeable layer is used for layingthe structure bottom plate. Seams are formed in the permeable layer, and slurry of the structure bottom plate can pass through the seams. The construction method includes the steps that one face of the waterproof layer is covered with the permeable layer, and the other face of the waterproof layer is laid on an excavation face. Laying of the waterproof layer is inspected. The waterproof structureand the construction method solve the technical problems that an existing waterproof structure of the bottom plate structure is not beneficial to rapid construction of the structure bottom plate anda waterproof coiled material and the structure bottom plate of concrete cannot be fully bonded.

Description

technical field [0001] The invention relates to the technical field of building waterproofing, in particular to a waterproof structure and a construction method for a structural bottom plate. Background technique [0002] In recent years, with the rapid development of urban rail, subway construction has entered a prosperous stage, and the problem of subway leakage has gradually attracted attention. [0003] The waterproof structure of the existing structural floor mainly adopts waterproof coiled material plus a waterproof protective layer. Because of the need for superiors to walk during construction and the fear of piercing the coiled material with tied and rolled steel bars, a concrete waterproof protective layer appears on the pre-laid waterproof coiled material. Although the waterproof structure and the waterproof protective layer can effectively protect the waterproof coiled material from being destroyed during the construction of the structure, there are the following ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/16E02D31/02
CPCE02D29/16E02D31/02
Inventor 魏元博郑书朝王宁倪黄磊张宇丰
Owner CHINA RAILWAY 16 BUREAU GRP BEIJING METRO ENG CONSTR
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