Shield steel sleeve sealing device and installation method thereof

A sleeve sealing and sealing device technology, applied in the direction of engine sealing, earth-moving drilling, mining equipment, etc., can solve the problems affecting the receiving progress, the air tightness of the steel sleeve, etc., to avoid secondary rework and speed up construction progress, the effect of ensuring the sealing

Active Publication Date: 2021-09-03
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] Such as 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 ...

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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Abstract

The invention discloses a shield steel sleeve sealing device and an installation method thereof. A sealing structure, the sealing structure includes a sealing ring and an adjusting frame, the sealing ring is embedded between two supporting cylinders, the adjusting frame includes a main connecting piece and a secondary connecting piece that are rotatably connected, and the main connecting piece and One end of the secondary connecting piece is fixedly connected to the sealing ring, and there is a gap between the main connecting piece and the other end of the secondary connecting piece. When the spacing changes, the radial expansion and contraction of the sealing ring changes synchronously. The sealing device of the shield steel sleeve and the installation method thereof of the invention can improve the sealing performance of the main body of the steel sleeve and reduce the possibility of rework of the 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 Patents(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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