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Self-adhesive waterproof board, drainage board, waterproof and drainage board

A technology of waterproof and drainage boards and drainage boards, which is applied in the direction of drainage, shaft lining, tunnel lining, etc., and can solve problems such as difficulty in ensuring the quality of tunnel waterproofing and drainage, low construction efficiency, leakage of waterproof boards, drainage boards or waterproof drainage boards, etc. Achieve the effects of ensuring the quality of waterproof and drainage construction, improving construction efficiency and saving manpower

Active Publication Date: 2018-08-17
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of laying and hanging has the following disadvantages: 1) It is necessary to manually weld the hot-melt gaskets one by one, and the construction efficiency is low; 2) The waterproof board, drainage board or waterproof drainage board is easy to crack at the welding place, which is easy to cause waterproof board , Drainage boards or waterproof and drainage boards leak, and it is difficult to ensure the quality of tunnel waterproofing and drainage; 3) The impact airflow will be generated during the blasting construction of the tunnel face, and the airflow impacts on the waterproof boards, drainage boards or gaps in the waterproof and drainage boards, which may easily cause waterproof boards, Drain boards or anti-drain boards further damaged or even dropped

Method used

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  • Self-adhesive waterproof board, drainage board, waterproof and drainage board
  • Self-adhesive waterproof board, drainage board, waterproof and drainage board
  • Self-adhesive waterproof board, drainage board, waterproof and drainage board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 2 , The installation method of the self-adhesive waterproof and drainage board is as follows: a buffer layer 2 is laid on the initial support of the tunnel 1, the buffer layer is made of geotextile, and the waterproof and drainage board 4 is fixed on the geotextile through a hook and loop 6.

[0027] see image 3 with Figure 5 , the self-adhesive waterproof and drainage board is a prefabricated part made of PE material. A Velcro is arranged every 1 meter, the length of the Velcro is 30cm, and the width is 10cm.

Embodiment 2

[0029] The installation method of the self-adhesive waterproof board is as follows: lay a geotextile on the initial support 1 of the tunnel, hang the self-adhesive waterproof board on the surface of the geotextile, and fix it on the geotextile through the hook and loop 6 .

[0030] The self-adhesive waterproof board is a prefabricated board made of EVA. The main body of the waterproof board is a plane light board of equal thickness, and one side of the waterproof board is compounded with a self-adhesive layer. The self-adhesive layer is a nylon hook strip with a width of 5 cm, and the hook-free side of the hook strip is laminated on the waterproof board with hot melt adhesive. The width of the waterproof board is 4m, and a hook surface is compounded every 1 meter. The length of each hook surface is the same as the length of the waterproof board body. The geotextile is made of polyester (polyethylene terephthalate, PET).

Embodiment 3

[0032] see figure 2 with image 3 , the installation method of the convex-hull type waterproof and drainage board is as follows: a geotextile is laid on the initial support of the tunnel 1, and the outer surface of the geotextile is laid with a convex-hull type waterproof and drainage board, which is bonded to the geotextile through the hook and loop 6.

[0033] Convex shell waterproof and drainage board is a prefabricated board. The hook surface with hookless side is thermally welded on the raised side of convex shell waterproof and drainage board. Velcro belt with a width of 20cm, and the length of the Velcro strip is the same as that of the main body of the convex shell type waterproof drainage board ( Figure 4 ).

[0034] The convex shell waterproof and drainage board is fixed on the geotextile through the hook and loop 6. The material of the geotextile is polypropylene and the specification is 400g / m 2 , the thickness is 3.5 ~ 4mm.

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Abstract

The invention provides a self-sticking type waterproof board, drainage board and waterproofing and drainage board which comprises a waterproof board, drainage board and waterproofing and drainage board body and a self-sticking layer, and the self-sticking layer is combined on the body. A sticking tape can be used as the self-sticking layer, the self-sticking layer is combined with the waterproof board, drainage board and waterproofing and drainage board body in a hot melting or cold sticking manner, and the self-sticking layer is stuck to a tunnel lining buffer layer during installation so that hanging fixation of the waterproof board, drainage board and waterproofing and drainage board can be realized. According to the waterproof board, drainage board and waterproofing and drainage board, the structure style is simple, the installation technology is convenient and fast, and the problems that hanging of the tunnel waterproof board, drainage board and waterproofing and drainage board is difficult, installation is not in place and tunnel leakage is caused by body damage are solved.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a novel tunnel waterproof and drainage product. Background technique [0002] In the prior art, the waterproof boards, drainage boards and waterproof drainage boards in the tunnel are fixed in the following ways: figure 1 As shown, first, the buffer layer 2 is fixed on the initial support 1 of the tunnel with the hot-melt gasket 3 and the nails 5, and then the waterproof board, drainage board or waterproof drainage board is welded on the hot-melt gasket 3. This method of laying and hanging has the following disadvantages: 1) It is necessary to manually weld the hot-melt gaskets one by one, and the construction efficiency is low; 2) The waterproof board, drainage board or waterproof drainage board is easy to crack at the welding place, which is easy to cause waterproof board , Drainage boards or waterproof and drainage boards leak, and it is difficult to e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/38E21F16/02
CPCE21D11/38E21F16/02
Inventor 马伟斌张千里林传年马超锋郭小雄付兵先王志伟杜晓燕牛亚彬安哲立张文达邹文浩李尧赵鹏
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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