Adaptive waterproofing structure for T-joint part of mechanical method contact passage

Abstract

The invention relates to an adaptive waterproofing structure for a T-joint part of a mechanical method contact passage. The adaptive waterproofing structure comprises an external-wrapping waterproofing system, a shield tunnel composite segment waterproofing structure, a backfill water-stopping grouting body of a shield tunnel, a contact passage segment waterproofing structure and a backfill water-stopping grouting body of the contact passage. The external-wrapping waterproofing system comprises blocking steel plates arranged at a bottom plate and a top plate of a tunnel body structure, and side wall blocking steel plates arranged on the two sides of the tunnel body structure. Blocking steel plate subunits are modularly welded to contact passage steel segments. The shield tunnel composite segment waterproofing structure comprises shield tunnel composite segments, shield tunnel concrete segments, water swelling rubber strips for longitudinal seams, water swelling rubber sheets, cement-based permeated crystal type coating and water swelling sealing pads for circumferential seams. The adaptive waterproofing structure for the T-joint part of the mechanical method contact passage has thebeneficial effects that the blocking steel plates adopted in the adaptive waterproofing structure are machined and produced industrially and modularly, mounting is convenient, the number of abutted seams is small, the waterproofing effect is good, and the construction progress can be ensured.

Description

technical field [0001] The invention relates to a waterproof structure of a tunnel structure, in particular to a waterproof structure of a T-junction between a mechanical communication channel and a shield tunnel. Background technique [0002] With the rapid economic development, my country's transportation industry is advancing at a rapid pace, and subways are being built in more and more cities. At present, my country's subway tunnel projects mainly adopt the construction method of shallow burial and underground excavation. In order to ensure construction quality and construction safety, waterproofing during construction is the top priority of the entire construction process, and the waterproofing of the main body of the subway needs to be done well. In the process of subway operation, water leakage in tunnels is also very common, and its hazards are relatively serious. If the water leakage problem cannot be effectively solved, it will have a great impact on the overall qu...

AI Technical Summary

Problems solved by technology

[0006] The construction method of the tunnel waterproof system disclosed in the prior art is used for large-scale tunnel construction in areas with high water content. There are generally many construction steps, complicated methods, difficult to implement, low construction efficiency, long construction period and considerable safety. problem flaw

In some cases, even after the tunnel waterproofing system is completed, it is difficult to ensure the safety of tunnel construction and subsequent use

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