Waterproof elastic sealing cushion for shield tunnel lining joint

A technology of elastic gaskets and gaskets, which can be used in tunnel lining, tunnel lining, shaft lining, etc., and can solve the problems of large number of joints and water leakage

Inactive Publication Date: 2012-10-17
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the number of joints in the overall waterproof area of ​​the shield tunnel is large, and the p

Method used

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  • Waterproof elastic sealing cushion for shield tunnel lining joint
  • Waterproof elastic sealing cushion for shield tunnel lining joint

Examples

Experimental program
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Effect test

Embodiment 1

[0015] Such as Figure 1~2 As shown, a shield method tunnel lining seam waterproof elastic gasket, the elastic gasket includes mirror-symmetrical left gasket 1 and right gasket 2, left gasket 1 and right gasket 2 are respectively provided with eight One through hole 3 and two grooves 4, one side of the left gasket 1 is in the shape of a boss, and it is pressed against the right gasket 2, and the other side is pasted on the left segment. Similarly, the right gasket 2 same. The left gasket is arranged on the left segment of the tunnel lining segment, and the right gasket is arranged on the right segment of the tunnel lining segment. Recesses in holes and grooves for better sealing. The elastic rubber gasket is made of EPDM rubber.

[0016] According to actual needs, 2 to 10 through holes can be arranged on the elastic sealing pad.

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Abstract

The invention relates to a waterproof elastic sealing cushion for a shield tunnel lining joint. The elastic sealing cushion comprises a left sealing cushion and a right sealing cushion, which form a mirror symmetry; a plurality of through holes and grooves are arranged on the left sealing cushion and the right sealing cushion; the left sealing cushion is arranged on a left pipe sheet of a tunnel lining pipe sheet; the right sealing cushion is arranged on a right pipe sheet of the tunnel lining pipe sheet; and the left pipe sheet and the right pipe sheet squeeze the left sealing cushion and the right sealing cushion to seal in a splicing process. Compared with the prior art, the waterproof elastic sealing cushion provided by the invention has the advantages of good elasticity, reduction of water sewage rate and the like.

Description

technical field [0001] The invention relates to a waterproof sealing pad for laying cable ducts, in particular to a waterproof elastic sealing pad for tunnel lining joints by a shield method. Background technique [0002] Since various municipal pipelines are criss-crossing underground and densely stacked, and there are more and more municipal buildings on the ground, the excavation construction will damage the road structure and the environment, and at the same time bring a lot of inconvenience to people's life and work, and the construction cost is increasing. higher. In order to solve the contradiction between existing municipal facilities and construction, a new construction technology - trenchless technology - was born. The most common technology used for long-distance pipeline laying in non-excavation technology is the shield construction method. [0003] The shield method is to keep the excavation surface stable within the steel shell called the shield, and at the s...

Claims

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Application Information

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IPC IPC(8): E21D11/38F16J15/10
Inventor 朱玉林杨文威陆小龙何真珍
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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