Shield steel sleeve sealing device and installation method thereof

A sleeve sealing and sealing device technology, which is applied in engine sealing, earthwork drilling, engine components, etc., can solve problems affecting the receiving progress and the airtightness of steel sleeves, so as to avoid secondary rework and speed up construction Progress, the effect of ensuring sealing

Active Publication Date: 2020-09-29
北京城建中南土木工程集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, most of the steel sleeves are spliced, and the joints are fixed by flanges and bolts. There are often gaps in the joints due to construction errors, resulting in problems with the air tightness of the steel sleeves, requiring rework, inspection and maintenance, and affecting Subsequent receiving progress

Method used

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  • Shield steel sleeve sealing device and installation method thereof
  • Shield steel sleeve sealing device and installation method thereof
  • Shield steel sleeve sealing device and installation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: A shield steel sleeve sealing device, including a steel sleeve main body and a sealing structure, such as figure 1 As shown, the main body of the steel sleeve is formed by connecting multiple support cylinders 1 in series, and a single support cylinder 1 is welded by upper cylinder and lower cylinder, and the sealing structure is arranged between adjacent support cylinders 1 for The sealing performance between adjacent support cylinders 1 is improved.

[0040] like figure 2 As shown, the sealing structure includes a sealing ring 2 and an adjusting frame 3, wherein the sealing ring 2 is a rubber ring whose diameter matches the diameter of the support cylinder 1, and the cross section of the sealing ring 2 is rectangular or wide in the middle and thin at both ends. Shuttle-shaped, the opposite end surfaces of two adjacent supporting cylinders 1 are symmetrically provided with relief grooves 11 matching with the sealing ring 2 , so that the sealing ring 2 i...

Embodiment 2

[0045] Embodiment 2: The difference between this embodiment and Embodiment 1 is that, as image 3 As shown, the sealing structure also includes adjusting bolts 4, and the relief grooves 11 symmetrically opened on the opposite end surfaces of the two adjacent supporting cylinders 1 can accommodate the sealing ring 2 and the adjusting frame 3, that is, the adjusting end of the adjusting frame 3 will not be supported. Extrusion at the end of barrel 1.

[0046] The ends of two adjacent supporting cylinders 1 are all provided with threaded holes communicating with the relief groove 11, and each group of adjusting bolts 4 is set as two, which are threadedly connected with one supporting cylinder 1 respectively, and the ends of the adjusting bolts 4 can Penetrate into the relief groove 11, press against the opposite side of the adjustment end of the main connecting piece 31 or the auxiliary connecting piece 32, increase the distance between the adjusting end of the adjusting frame 3 ...

Embodiment 3

[0048] Embodiment 3: a kind of installation method of shield steel sleeve sealing device, comprises the following steps:

[0049] Step 1. Determine the center line of the line in the foundation pit. When positioning the steel sleeve, it is required that the center line of the steel sleeve frame and the center line of the line coincide with each other.

[0050] Step 2: Assemble the first support cylinder 1 on the ground, and then lower it into the foundation pit as a whole, so that the center of the support cylinder 1 coincides with the pre-determined center line of the line, and fix it after reaching the predetermined position.

[0051] Step 3: Assembling the sealing structure, connecting the adjustment frame 3 and the sealing ring 2 into one body by hot-melting, and embed the sealing ring 2 on the end of the first section of the steel sleeve to be connected.

[0052] Step 4, repeat step 2, lower the second support cylinder 1 into the foundation pit, splice with the first supp...

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PUM

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Abstract

The invention discloses a shield steel sleeve sealing device and an installation method thereof. The device comprises a steel sleeve main body, the steel sleeve main body is formed by splicing a plurality of supporting cylinders, a sealing structure is arranged between every two adjacent supporting cylinders, each sealing structure comprises a sealing ring and an adjusting frame, each sealing ringis embedded between the two corresponding supporting cylinders, and each adjusting frame comprises a main connecting piece and an auxiliary connecting piece which are rotatably connected; one ends ofthe main connecting pieces and one ends of the auxiliary connecting pieces are fixedly connected with the sealing rings, and distances exist between the other ends of the main connecting pieces and the other ends of the auxiliary connecting pieces. When the distances are changed, the radial expansion and contraction amount of the sealing rings is synchronously changed. The shield steel sleeve sealing device and the installation method thereof can improve the sealing property of the steel sleeve main body and reduce the possibility of rework of a steel sleeve.

Description

technical field [0001] The invention relates to the field of shield construction, in particular to a shield steel sleeve sealing device and an installation method thereof. Background technique [0002] With the rapid development of our country's economy and the continuous acceleration of urbanization, the urban population is increasing, the available space on the ground is getting less and less, and the urban traffic is becoming more and more congested. The development and utilization of urban underground space has become the focus of urban development today. Inevitably required. Due to its small impact on ground traffic, high construction safety, and low noise, the shield method has become the preferred construction method for constructing subway interval tunnels and cross-street tunnels. [0003] The existing shield tunneling method construction shield machine can directly enter the hole receiving frame. The use of a steel sleeve to receive is to put a steel sleeve on th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06F16J15/10
CPCE21D9/06F16J15/104
Inventor 于海亮娄志会刘智磊王聪王天驰曹广勤李玲袁宏光王勋季士喆杨枫
Owner 北京城建中南土木工程集团有限公司
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