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Tunnel connection channel rapid construction method based on telescopic steel pipe piece

A communication channel and construction method technology, which is applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve the problems of high cost of steel pipe sheets, waste of materials, and inability to reuse steel pipe sheets, so as to reduce project cost, reduce disturbance, avoid The effect of surrounding rock instability

Active Publication Date: 2021-02-05
CHINA RAILWAY SHISIJU GROUP CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the construction speed of steel pipe cutting is better than that of concrete pipes, the cost of steel pipes is high, and the cut steel pipes cannot be reused, resulting in serious waste of materials

Method used

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  • Tunnel connection channel rapid construction method based on telescopic steel pipe piece
  • Tunnel connection channel rapid construction method based on telescopic steel pipe piece
  • Tunnel connection channel rapid construction method based on telescopic steel pipe piece

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Embodiment Construction

[0035] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present disclosure. Unless defined otherwise, all technical and scientific terms used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0036] Such as figure 1 As shown, the implementation of the present disclosure provides a telescopic steel pipe sheet, which is mainly composed of a bearing plate, a hydraulic system 8 , a jack 3 , a hydraulic system 8 , and a lifting rod 7 .

[0037] The carrying plate includes a bottom carrying plate 5 with an arc-shaped surface, the bottom carrying plate is in the shape of a strip, the bottom carrying plate can be stretched in the width direction, and the arc is fixed in the width direction of the bottom carrying plate shaped bearing plate 4, the arc-shaped bearing plate 4 is perpendicular to the bottom bearing plate 5, and the...

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Abstract

The invention relates to a tunnel connection channel rapid construction method based on a telescopic steel pipe piece, and belongs to the technical field of computer image processing. The tunnel connection channel rapid construction method comprises the following steps that the telescopic steel pipe piece is installed, a bottom bearing plate of the telescopic steel pipe piece extends outwards until the external size of the pipe piece is consistent with that of a concrete pipe piece, and the bottom bearing plate is hoisted to a preset position and connected with prefabricated concrete pipe pieces on the periphery in a through seam splicing mode; before a transverse channel is excavated, glass fiber grouting anchor rods are punched through grouting holes in the bottom bearing plate, and surrounding rock at a rear connecting channel of a steel pipe piece wall is grouted and reinforced; after the surrounding rock reinforcement is completed, the telescopic steel pipe piece is dismantled, and an initial stage of the connection channel is excavated; and finally, the middle stage of the connection channel is excavated until the connection channel is conducted. According to the tunnel connection channel rapid construction method based on the telescopic steel pipe piece, the pipe piece is safely and rapidly disassembled through automatic contraction of the steel pipe piece, and the construction time of the shield connection channel is shortened; and meanwhile, the steel pipe piece can be repeatedly used, and the construction cost is reduced.

Description

technical field [0001] The disclosure belongs to the technical field of rail transit engineering, and in particular relates to a rapid construction method for tunnel communication passages based on telescopic steel pipe sheets. Background technique [0002] The statements herein merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Shield or TBM tunnels are mostly supported by prefabricated concrete segments, and the installed segments need to be removed first during the construction of the tunnel connecting passage. At present, the demolition of presupported concrete segments at the communication channel is mostly done by pneumatic picks. The vibration generated by the pneumatic picks will affect the stability of the existing structure, and the workload of the pneumatic picks is large, the construction speed is slow, and the construction safety is poor. In order to facilitate the construction of the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/18E21D11/00E21D11/38E21D20/02E21D11/10E21D9/00
CPCE21D9/00E21D11/00E21D11/10E21D11/105E21D11/18E21D11/38E21D11/385E21D20/02
Inventor 李秀东王志康吴圣智李克金梁而斌王军韩健勇
Owner CHINA RAILWAY SHISIJU GROUP CORP
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