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T-shaped water tightness test device of shield tunnel elastic sealing gasket

An elastic gasket and shield tunnel technology, which is applied in the direction of using liquid/vacuum for liquid tightness measurement, etc., can solve the problems of unable to verify the waterproof ability of corners, unable to verify the waterproof ability of sealing belts, etc., and achieve the accurate evaluation system. Effect

Inactive Publication Date: 2012-02-29
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its design has obvious defects: it is impossible to verify the waterproof ability of the sealing tape in the case of staggered platform, and it is also impossible to verify the waterproof ability of the corners in the state of staggered seam assembly, etc.

Method used

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  • T-shaped water tightness test device of shield tunnel elastic sealing gasket
  • T-shaped water tightness test device of shield tunnel elastic sealing gasket
  • T-shaped water tightness test device of shield tunnel elastic sealing gasket

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Embodiment Construction

[0032] The features of the present invention and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments, so as to facilitate the understanding of those skilled in the art:

[0033] attached Figure 1-16 The middle marks 1-20 represent segment 1, elastic gasket 2, circular profile cover plate 3, rectangular profile cover plate 4, gasket 5, limit plate bolt hole 6, leg 7, lower cover plate 8, Gasket installation groove 9, bolt (hole) 10, water inlet hole 11, upper left plate 12, rib plate 13, upper right plate 14, limit plate 15, air outlet hole 16, water pressure gauge screw hole 17, central axis 18 , Cover fitting surface Ⅰ19, cover fitting surface Ⅱ20.

[0034] During the design process of the gasket, there is no suitable theoretical guidance. Therefore, it belongs to empirical design, and in the production process, its production quality can only be controlled by simple calipers and hardness tester...

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Abstract

The invention belongs to the field of a tunnel project, in particular to a T-shaped water tightness test device of a shield tunnel elastic sealing gasket, which comprises a rectangular cover plate provided with a water inlet, and two L-shaped cover plates with air outlets, wherein the rectangular cover plate and the L-shaped cover plates are respectively jointed on one surface of the rectangular cover plate to form a jointing surface; the two L-shaped cover plates are symmetrically distributed along the axis wire of the jointing surface of the rectangular cover plate, and are mutually jointedto form another jointing surface; the cover plates on both sides of the jointing surface are correspondingly provided with an installation groove of the sealing gasket; bolts distributed on the periphery of the cover plates are tightly jointed between the jointed cover plates; and the side part of the rectangular cover plate is provided with a limit board. The invention can be used for accuratelytesting the waterproofing ability of an elastic sealing belt on the condition of different openings and different slab staggering quantities of duct pieces, in particular the waterproofing ability ofthe sealing belt at the corner part during assembling staggered joints. Thus, the evaluation system of waterproofing ability is more accurate and in place.

Description

technical field [0001] The invention belongs to the field of tunnel engineering, and specifically refers to a "T-shaped" watertightness testing device for shield tunnel elastic gaskets for simulating and testing the waterproof ability of shield tunnel segment joint waterproof gaskets in the case of staggered seams. . Background technique [0002] At present, shield tunnels are mostly lined with reinforced concrete segments, and for waterproofing, grooves are usually arranged on the outside of the segments, and elastic gaskets are embedded in the grooves. During the segment assembly process, the bolts between the segments are used to compress the elastic gasket to resist the external water pressure. [0003] In the design process of the sealing tape, there is no suitable theoretical guidance. Therefore, it belongs to empirical design, and in the production process, its production quality can only be controlled by simple calipers and hardness testers for shape and hardness....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/02
Inventor 余儿忠刘建国周顺华肖飞知
Owner TONGJI UNIV
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