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The construction method of synchronous transfer of the starting pipeline of shield tunneling

A technology of separate origination and construction method, which is applied in the direction of earthwork drilling, mining equipment, tunnels, etc., can solve the problems of pipeline damage, prolong the construction period of tunnels, etc., and achieve the effect of saving construction period and simple processing

Active Publication Date: 2021-04-30
CCCC SECOND HARBOR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the traditional shield machine splits the initial operation, the pipeline (thin cable, thick cable and hydraulic pipe) is directly thrown from the ground to the initial operation well. When the shield machine is excavating, the pipeline will often be straightened. At this time Operators need to extend the pipeline by manual pulling, which greatly prolongs the construction period of the tunnel, and the pipeline directly rubs against the bottom surface, which is easy to cause damage to the pipeline

Method used

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  • The construction method of synchronous transfer of the starting pipeline of shield tunneling
  • The construction method of synchronous transfer of the starting pipeline of shield tunneling
  • The construction method of synchronous transfer of the starting pipeline of shield tunneling

Examples

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Embodiment 1

[0046] The mileage from 1# Fengjing to 2# Fengjing section of a certain line of Chengdu Metro is ZDK66+876.111~ZDK68+772.569, the total length of the section is 1896.458m; the mileage from the right line is YDK66+876.111~YDK68+790.601, the total length of the section 1914.49m; the line spacing is 7.9-19 meters, the buried depth of the tunnel is 6-13 meters, the minimum curve radius is 600m, and the maximum longitudinal slope is 11‰. The interval tunnel is excavated by two CCTC and Φ8580 earth pressure balance shield machines, both of which originate from the large mileage end of the 1# wind shaft and receive at the short mileage end of the 2# wind shaft.

[0047] Since the length of the originating shaft of No. 1 wind shaft in the Ming-Jiu interval is only 66.6m, while the length of the shield machine is 105.5m, the originating shaft cannot satisfy the overall origination of the shield machine. To synchronize the amount of grouting, 6 soil buckets and 2 mortar trucks are requi...

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Abstract

The invention discloses a construction method for the synchronous transfer of the starting pipeline of the shield split body. The middle plate in the starting section of the air shaft is wired through a pipeline support group, and the pipeline support group includes a first pipeline support and a second pipeline support. The first pipeline supports on the middle plate are all arranged in a matrix. The pipelines are erected on the first pipeline supports. A second pipeline support is arranged between the first pipeline support at one end of the erected pipeline and the working well. One end of the pipeline The head enters the working well through the second pipeline support to reach the bottom plate. The invention can shorten the construction period, has a simple construction method, and can also protect pipelines.

Description

technical field [0001] The invention relates to the field of separate starting construction of shield tunneling. More specifically, the present invention relates to a construction method for the synchronous transfer of the originating pipeline of the shield tunneling body. Background technique [0002] At present, shield construction technology has been widely used in transportation, hydropower and other engineering fields. The shield construction section is generally divided into three parts: the starting operation well of the shield machine, the shield section and the shield receiving operation. When the traditional shield machine splits the initial operation, the pipeline (thin cable, thick cable and hydraulic pipe) is directly thrown from the ground to the initial operation well. When the shield machine is excavating, the pipeline will often be straightened. At this time Operators need to extend the pipeline by manual pulling, which greatly prolongs the construction pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/06E21F17/00E21F17/06E21F17/08
CPCE21D9/06E21F17/00E21F17/06E21F17/08
Inventor 崔洪谱刘国栋鞠义成张云龙何普鑫
Owner CCCC SECOND HARBOR ENG