Zipper type connecting system of waterproof plates of tunnel and construction method thereof

Abstract

The invention provides a zipper type connecting system of waterproof plates of a tunnel and a construction method thereof. The connecting system comprises a plurality of waterproof plates same in structure. Each waterproof plate comprises a plate body, a broached groove is formed in the edge of the plate body, chain teeth are arranged on the broached groove, insertion seats and sliding part pullers are arranged on at least two edges, insertion parts matched with the insertion seats are arranged on other edges, and adjacent two waterproof plates are detachably connected together in a zipper manner. The zipper type connecting structure improves the tensile strength of the connections of the waterproof plates, and the waterproof plates are not overlapped, the connecting speed is accelerated,the waterproof measure among the chain tooth gaps is effective, and the zipper type connecting system has the advantages of being firm in structure, efficient to construct, excellent in waterproof performance, economic in material and the like.

Description

technical field [0001] The disclosure belongs to the field of tunnel waterproof board connection structure and construction technology, and in particular relates to a tunnel waterproof board zipper type connection system and a construction method thereof. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Waterproof board is a kind of anti-seepage material made of polymer as the basic raw material, which can prevent liquid leakage and gas volatilization. As a waterproof structure between the primary support and the secondary lining of the tunnel, the waterproof board is widely used in tunnel engineering construction. Its existing construction technology is mainly as follows: the lap width of the two waterproof boards should not be less than 10cm, and the lap seam between the waterproof boards adopts an automatic crawling heat sealing machin...

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Problems solved by technology

[0004] The above construction methods have many steps, complicated procedures and difficult to control the construction quality. It is concluded that there are many problems as follows:

[0006] The quality inspection of weld air tightness after welding and the repair welding of unqualified parts make the process complicated and time-consuming, which is not convenient for rapid construction in complex environments, and the construction efficiency is low;

[0007] The welding place needs to meet the overlapping of 10-15cm of the waterproof board, and the lap length of the full section will be generated once when the waterproof board is laid in one cycle, resulting in waste of waterproof boards;

[0008] The mechanical properties of the welded joints are uneven, and the working stress at the welded joints is uneven, which is prone to stress concentration and affects the joint strength, especially the fatigue strength. Due to the uneven heating of welding, welding residual stress and deformation are caused;

[0009] Welded joints have greater rigidity, and their elongation performance is worse than that of waterproof sheets. Under tension, it is easy to damage the tightness of welded joints, and the waterproof performance will fail.

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