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Test device and test method for testing waterproof performance of pipe segment joint sealing gaskets

A sealing pad waterproof and test device technology, which is applied in fluid tightness testing, measuring devices, liquid tightness measurement using liquid/vacuum degree, etc., can solve problems such as inconsistencies in actual engineering, achieve reliable design basis, and facilitate observation and record the effect

Inactive Publication Date: 2018-03-20
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to: when the device used to detect the waterproof performance of the segment seam gasket in the prior art is in use, only one type of seam can be tested, which leads to a discrepancy with the actual project, The accuracy of the test data has relatively large limitations. A test device and test method for the waterproof performance of the segment joint gasket are provided. The test device integrates two different types of joints to simulate the actual engineering. The actual working conditions of different joint types exist at the same time after the segments are assembled, so that the obtained experimental data of the waterproof performance of the gasket is consistent with the actual situation, providing reliable reference and data support for the construction of the actual project, and ensuring the construction quality and waterproof safety

Method used

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  • Test device and test method for testing waterproof performance of pipe segment joint sealing gaskets
  • Test device and test method for testing waterproof performance of pipe segment joint sealing gaskets
  • Test device and test method for testing waterproof performance of pipe segment joint sealing gaskets

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] The device for testing the waterproof performance of the segment seam gasket in this embodiment can simulate various types of seams formed by staggered splicing of tunnels.

[0096] Such as Figure 3-Figure 22 As shown, the segment joint gasket waterproof performance test device includes a sleeve 3 with openings at both ends, and sealing covers installed at both ends of the sleeve 3, including a first sealing cover 1 and a second sealing cover 2, wherein,

[0097] The sleeve 3 includes a plurality of sleeve blocks. In this embodiment, the sleeve 3 includes two sleeve blocks, the first sleeve block 3A arranged on the left side and the second sleeve block 3B arranged on the right side , the two sleeve blocks are spliced ​​to form the overall structure of the sleeve;

[0098] Such as Figure 16-Figure 22 As shown, the splicing surface of each sleeve block is provided with a splicing groove 7 for installing a gasket, and the end of the sleeve 3 is provided with an end gro...

Embodiment 2

[0142] The segment seam gasket waterproof performance test device of this embodiment is basically the same as that in Embodiment 1, and the cross section of the sleeve is also circular. The difference is that the sleeve 3 includes a first sleeve 31 and a second sleeve 31. The sleeve 32, the first sleeve 31 and the second sleeve 32 are respectively spliced ​​by sleeve blocks, and the two have part or all of the seams aligned, such as Figure 23 and 24 shown.

[0143] The sleeve 3 includes a first sleeve 31 and a second sleeve 32 with butted ends, and the first sleeve 31 and the second sleeve 32 are all made of two identical semicircle sleeve blocks (as in embodiment 1 The first sleeve block 3A and the second sleeve block 3B) are spliced ​​along the axial direction, the seam of the first sleeve 31 is aligned with the splicing of the second sleeve 32, and the first sleeve 31 and The relative position between the second sleeves 32 is adjustable.

[0144] In actual engineering, ...

Embodiment 3

[0148] This embodiment provides an experimental method for the waterproof performance of the segment seam gasket, which is used to test the test device in embodiment 1 or embodiment 2, such as Figure 3-Figure 24 shown, including the following steps:

[0149] a. Install the gasket 13 of the sleeve block and assemble the sleeve block, respectively install the gasket 13 in the splicing groove 7 and the end groove 5 of each sleeve block, and keep the gasket 13 and the sleeve block Relatively fixed, each sleeve block is assembled to form an overall sleeve structure. In embodiment 1, it is enough to assemble the first sleeve block 3A and the second sleeve block 3B. In embodiment 2, the first sleeve 31 should be assembled respectively. The first sleeve block 3A and the second sleeve block 3B, and the first sleeve block 3A and the second sleeve block 3B assembling the second sleeve 32, and then the first sleeve 31 and the second sleeve 32 to assemble;

[0150] b. Install the sealin...

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Abstract

The invention relates to the technical field of tunnel engineering, and particularly relates to a test device and a test method for testing the waterproof performance of pipe segment joint sealing gaskets. The test device of the invention includes a sleeve with openings at both ends, and sealing covers installed at the two ends of the sleeve. The sleeve includes a plurality of sleeve blocks, and the sleeve blocks are spliced into an overall sleeve structure. Sealing gaskets are installed on the sleeve blocks on the two sides of a joint, and sealing gaskets are also arranged in the positions ofthe sleeve where the sealing covers are installed. The test device can simulate the actual condition that there are various types of joints after pipe segment splicing in actual projects. The experimental data of the waterproof performance of sealing gaskets is consistent with reality. Reliable reference and data support are provided for the construction of actual projects. The construction quality and the waterproof safety are ensured.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering, in particular to a waterproof performance test device and test method for segment joint sealing pads. Background technique [0002] At present, the shield method is widely used in the construction of tunnels in our country. The lining of shield tunnels is mostly spliced ​​by prefabricated reinforced concrete segment lining, and the spliced ​​segments need to take strict waterproof measures at the joints. Under the existing technical conditions, the waterproofing of segment joints is mainly achieved by sealing gaskets. Usually, a groove is provided at the fitting part of the segment joint, and a gasket is installed in the groove. During the assembly process of the segment, the gasket between the segments is pressed tightly by the jacking force, and then fixed by the fastener. The two sides of the tubes are combined, so that the gasket remains in a compact state, so as to achieve the fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/28
CPCG01M3/2884
Inventor 张军伟陈云尧李雪
Owner SOUTHWEST PETROLEUM UNIV
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