Cross waterproof test device for shield tunnel segment joints

A shield tunnel segment and waterproof test technology, which is applied in the direction of measuring the rate of increase and deceleration of the fluid, and using liquid/vacuum to measure the liquid tightness, can solve the problem of waterproof performance without joints, and achieve waterproof test The effect of accurate results, accurate performance evolution rules, and convenient assembly

Pending Publication Date: 2018-07-13
SOUTHWEST JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing joint waterproofing of shield tunnel segments is mostly aimed at straight seams and T-shaped seams, and there is no seam waterproof performance test device for cross seam defense line watertight sealing at home and abroad.

Method used

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  • Cross waterproof test device for shield tunnel segment joints
  • Cross waterproof test device for shield tunnel segment joints
  • Cross waterproof test device for shield tunnel segment joints

Examples

Experimental program
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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing:

[0023] combine figure 1 , figure 2 and image 3 As shown, the present invention includes a unit substrate 1, and the unit substrate 1 is provided with a gasket groove 7 of a rectangular frame structure;

[0024] The unit substrate 1 is a right-angle plate, and the gasket groove 7 is folded from the middle position into two vertical and horizontal parts. The folded vertical part and the folded transverse part of the gasket groove 7 are respectively located on the two outer right-angle surfaces of the right-angle plate;

[0025] There are four unit substrates 1, and the four unit substrates 1 are abutted to form a cross-shaped structure. Between two adjacent unit substrates 1 is a detachable structure connected by bolts 2. Between two adjacent unit substrates 1 The gasket groove 7 corresponds to the opposite layout,

[0026] The connecting bolt holes between two adjacent...

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Abstract

The invention discloses a cross waterproof test device for shield tunnel segment joints and belongs to the technical field of shield tunnel projects. The cross waterproof test device has the advantages that the cross waterproof test device can perform a cross waterproof test; when two right-angle plates are demounted and reassembled into a flat-plate-shaped unit substrate in the prior art, a T-shaped water test can be performed; the device is quite convenient to assemble and capable of performing tests of various technical schemes; the device can truly and comprehensively simulate the waterproof environments of the shield tunnel segment joints so as to achieve accurate waterproof test results and accurately reflect the performance development law of a real shield tunnel segment joint waterproof sealing pad, and accordingly a reliable test basis is provided for the design and maintenance of shield tunnel segment joint waterproofing.

Description

technical field [0001] The invention belongs to the technical field of shield tunnel engineering, and in particular relates to a cross-shaped shield tunnel segment seam waterproof test device, which can realize the simulation of shield tunnel segment seam waterproof gaskets in the state of joint joints and staggered joints. Cross-shaped" waterproof and watertight test device test. Background technique [0002] With the rapid development of my country's urbanization process, there is a huge demand for the construction of tunnels such as subways and river passages. Shield tunnels, as the main form of tunnels, play an important role. The waterproof problem of underground engineering has always been concerned by the majority of technical personnel, and for shield tunnels, due to long-term immersion and corrosion by groundwater, waterproof performance is very important. The waterproofing of the shield tunnel is not only related to the normal function of the tunnel, but also rela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 封坤何川谢宏明李策
Owner SOUTHWEST JIAOTONG UNIV
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