Replaceable and inflatable type water stopping belt used for mining method tunnel

Abstract

The invention discloses a replaceable and inflatable type water stopping belt used for a mining method tunnel. The problem that an existing water stopping belt cannot effectively solve the problems of water seepage and water leakage of a tunnel in the prior art is effectively solved. The replaceable and inflatable type water stopping belt has the effects that construction is convenient, the waterproof capacity in tunnel expansion joints can be improved, and replacing can be convenient during tunnel operation period. According to the technical scheme, the replaceable and inflatable type water stopping belt comprises an airbag groove, the airbag groove and an airbag are arranged in a fitting mode, and the airbag groove comprises two arc-shaped tube pieces which are arranged oppositely; a set gap is formed between the end parts of the two arc-shaped tube pieces, and the positions between the inner sides of the arc-shaped tube pieces and the airbag are filled and coated with waterproof mineral grease; and a plurality of anchoring pieces are arranged on the outer sides of the arc-shaped tube pieces.

Description

technical field [0001] The invention relates to the technical field of tunnels and underground engineering, in particular to a replaceable inflatable waterstop used in mining tunnels. Background technique [0002] In recent years, my country's tunnel and underground engineering have achieved unprecedented rapid development, and there are a large number of tunnels under construction and proposed to be constructed. At present, my country has a relatively complete standard system for tunnel design and construction, but there are still major problems in later maintenance. During the operation of the tunnel, due to the influence of groundwater, water seepage and water leakage at the deformation joints are very common, and it is imperative to strengthen the waterproof measures of the tunnel during the operation stage. [0003] The current waterproofing of the tunnel during operation mainly has the following problems: [0004] (1) The construction of the tunnel waterproof system ...

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Problems solved by technology

[0004] (1) The construction of the tunnel waterproof system relies on waterproof boards, drainage pipes between the secondary lining and the primary lining, and waterstops at the expansion joints, all of which are located behind the secondary lining and do not have the conditions for replacement

[0005] (2) For the waterstop located at the expansion joint, the construction process of the mid-buried steel-edged rubber waterstop and steel bar clamps widely used at present is cumbersome, and the construction quality is not easy to guarantee; although the externally attached waterproof belt tunnel is easy to replace, it affects beautiful

[0006] (3) Affected by the force characteristics of the deformation joints of the tunnel, the tunnel structure is prone to deformation and dislocation at the deformation joints, and the rubber waterstop is prone to fracture and damage with the deformation of the concrete on both sides of the deformation joints, resulting in water leakage from the deformation joints

[0007] (4) Tunnel water leakage disaster is irreversible, and the commonly used expansion joint water sealing system is completed once during the secondary lining construction of the tunnel, which is not maintainable. Water leakage occurs during the operation period of the tunnel and can only be closed to traffic It is controlled by means of grouting, which has a great impact on tunnel operation

[0008] To sum up, in the prior art, the waterstop cannot effectively solve the problem of tunnel water seepage and leakage, and there is still no effective solution

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