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Waterproof construction of shield tunnel of suiting to bulk value of differential settlement or slippage of stratum

A shield tunnel and waterproof structure technology, applied in the field of tunnels, can solve problems such as no effective method, and achieve the effect of reliable quality, good waterproof and simple structure

Inactive Publication Date: 2007-02-21
SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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  • 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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  • Waterproof construction of shield tunnel of suiting to bulk value of differential settlement or slippage of stratum

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Embodiment

[0018] In this embodiment, 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 large deformation ring is assembled from steel pipe pieces 6 and 9, and the assembly surface of the second ring is provided with positioning installation holes. 4. The Ω-shaped rubber waterstop 3 is installed and fixed at the deformation joints through nuts 7 and fixing bolts 8 .

[0019] There is also an elastic rubber gasket 1 with a special section at the deformation joint. The gasket is mainly made of EPDM rubber, and the top is covered with water-swellable rubber in the form of a porous section structure. Compared with the seam trapezoidal gasket, it has the ability to adapt to a large amount of deformation under certain water pressure conditions.

[0020] A sponge rubber filling plate 2 is arranged in the deformation seam, so as to control the opening amount of the initial seam.

[002...

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Abstract

The present invention belongs to the field of tunnel technology, in the concrete, it relates to a water-proofing structure of shield-driven tunnel capable of adapting to large-magnitude stratigraphical non-uniform subsidence or disturbance. Said structure is characterized by that nearby stratigraphical crack position a lined large-deformation ring is set, sad deformation ring adopts an integrated water-proofing system with several protective lines so as to meet the requirements of that the lined joint does not leak water under the condition of large deformation.

Description

technical field [0001] The invention relates to tunnels, in particular to a waterproof structure of a shield tunnel adapted to the uneven settlement or dislocation 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. Ground fissures are the result of superposition of multiple factors. In the active system of ground fissures, the main cause of formation 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 differ...

Claims

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Application Information

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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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