Method of hanging separate waterproof board without nails

A waterproof board and separate technology, which is applied in mining equipment, earthwork drilling, wellbore lining, etc., can solve the problems of easy welding and welding through waterproof boards, difficult control of construction quality, and increased construction costs, so as to reduce construction costs , shorten the hanging time, reduce the effect of consumption

Active Publication Date: 2017-01-25
中铁十九局集团华东工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current separate waterproof board is hung by spot welding and pasting the waterproof board and the hot-melt plastic pad with a hot air welding torch. A large number of thermoplastic gaskets increase the construction cost; 3. All operations must be completed on the working surface, which takes a long time to hang and low work efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] 1. Use iron pliers or cutting equipment to process a 2.5cm*2.5cm square steel gasket as a spare steel plate;

[0023] Second, base surface cleaning:

[0024] (1) For local leakage, use grouting to block water or bury drainage pipes to drain directly to the side;

[0025] (2) The protruding part of the steel mesh should be cut off first and then plastered with mortar and plain ash by hammer riveting. If there is a protruding pipe, it should be smoothed with mortar. Plastic cap handling;

[0026] (3) The initial support should have no hollows, cracks, looseness, and the surface should be smooth, and the amount of unevenness should not exceed ±5cm;

[0027] 3. Set several steel plates on the outside of the non-woven fabric, and then use a nail gun to shoot iron nails at the steel plates to fix the non-woven fabric on the tunnel wall;

[0028] 4. At the same time, weld the hanging points of the waterproof board in the tunnel processing factory;

[0029] (1) Check the qu...

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PUM

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Abstract

A separating type water-proof board nail-free hanging method is used for secondary lining in a tunnel construction process. The method is mainly used for solving the problem that the existing separating type water-proof board hanging construction quality is not easy to control and the like. The method includes that a steel cushion block is machined, and a base plane is cleaned; a steel plate is arranged on the outer side of non-woven fabric, iron nails are shot at the steel plate position by a nail gun, and the non-woven fabric is fixed on a tunnel wall; water-proof board hanging points are welded in a machining factory outside a tunnel; a water-proof batten is machined and welded through a hot wind welding gun according to water-proof board design hanging point requirements, one end of the water-proof batten is welded onto one water-proof board, cloth belts or cotton ropes are tied to the water-proof batten, and the other end of the water-proof batten is welded onto the other water-proof board. The steel plate is arranged on the outer sides of the cloth belts or the cotton ropes on the water-proof board hanging points, the iron nails are shot on the steel plate through the high-pressure nail gun, and the cloth belts or the cotton ropes are fixed on the non-woven fabric. Finally, the two water-proof boards are welded in a hot melting mode. The method has the advantage of being capable of guaranteeing the construction quality.

Description

[0001] Technical field: [0002] The invention relates to a method for hanging a separate waterproof board used for secondary lining in the tunnel construction process. [0003] Background technique: [0004] The current separate waterproof board is hung by spot welding and pasting the waterproof board and the hot-melt plastic pad with a hot air welding torch. A large number of thermoplastic gaskets increase the construction cost; 3. All operations must be completed on the working surface, the hanging time is long, and the work efficiency is low. [0005] Invention content: [0006] The technical problem to be solved by the present invention is to provide a nail-free hanging method for separate waterproof boards with low construction cost, good quality and short hanging time. [0007] The above purpose is achieved in this way: [0008] 1. Use iron pliers or cutting equipment to process a 2.5cm*2.5cm square steel gasket as a spare steel plate; [0009] Second, base surface c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/38
Inventor 王志科秦殿明张玉王孝平曹树强张洪杰刘玲
Owner 中铁十九局集团华东工程有限公司
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