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Water proof method of shield tunnel adaptable for large value stratum ununiform settling or diastrophism

A technology of shield tunneling and ground formation, which is applied in the field of tunnels, can solve problems such as no effective methods, and achieve the effects of reliable quality, good waterproof, and simple structure

Inactive Publication Date: 2007-01-31
SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In the tunnel engineering of the prior art, for the ground fissures caused by the uneven settlement or dislocation of a large number of values, for example, for the displacement of more than 10mm, there is no effective method related to lines, structures, tracks and waterproofing.

Method used

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  • Water proof method of shield tunnel adaptable for large value stratum ununiform settling or diastrophism

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Embodiment

[0019] The shield tunnel of this embodiment is composed of several lining ring sections connected, and at least one large deformation lining ring section is set in the several lining ring sections to adapt to the uneven settlement or displacement of a large number of strata. The lining ring section structure adopts two-ring steel pipes Assembled from pieces, the waterproof method adopted is:

[0020] According to the geological subsidence curve of the location, a large deformation ring is arranged at a certain distance among several lining ring sections. The shape of the assembled surface is convex and concave matching, and positioning installation holes 4 are provided on the assembled surface. During the advancing stage of tunnel construction, bolts are used to connect and fix the two rings of steel pipe sheets 6 and steel pipe sheets 9; after the entire tunnel is advanced and stabilized, loosen the bolts The nut on the top is installed and fixed with the Ω-shaped rubber wate...

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Abstract

This invention relates to the tunnel, it is concretely relate to a kind of waterproof method which is fit for the shield structure tunnel that large amount of stratum subside unevenly or a move alternatively, the shield structure tunnel of this method set up liner big deformation ring in the location around the fissure, using synthetic waterproof system which has multiple line of defence to satisfy the request that the seam doesn't leak under the working condition of the big deformation.

Description

technical field [0001] The invention relates to tunnels, in particular to a waterproof method for shield tunnels adapted to the uneven settlement or displacement of a large number of strata. Background technique [0002] Ground fissure is a phenomenon that the surface rock and soil layer cracks under the action of natural factors and human factors and forms cracks of a certain length and width on the ground. The ground fissures in Xi'an are the result of superposition of multiple factors. In the active system of ground fissures, the main cause is natural geological processes, supplemented by human factors. The activities of ground fissures have the characteristics of deformation in three-dimensional space, manifested as vertical settlement, horizontal tension and twisting. [0003] Because the activity of ground fissures is a dynamic change process, the causes, mechanisms and types are very complex, and it has obvious segmental activity characteristics according to differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/38
Inventor 曹文宏乔宗昭曹伟飚管攀峰沈张勇朱祖熹陆明
Owner SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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