Construction method for downwards penetrating freight railway special line by using shield tunneling machine

A technology for shield machines and railways, applied in underground chambers, shaft equipment, shaft linings, etc., can solve problems such as operating line risks, promote construction technology progress, ensure shield construction quality and safety, social benefits and the environment Obvious effect

Pending Publication Date: 2021-06-08
CHINA RAILWAY SIXTH GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method using a shield machine to pass through a freight railway line to solve the existing problem: the tunnel passes through the operation line at a short distance, causing certain risks to the operation line

Method used

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  • Construction method for downwards penetrating freight railway special line by using shield tunneling machine
  • Construction method for downwards penetrating freight railway special line by using shield tunneling machine

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Embodiment Construction

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] see figure 1 As shown, the present invention is a construction method of using a shield machine to pass through a freight railway dedicated line.

[0028] Specifically, this method is as follows:

[0029] First, conduct safety assessment on the operation of the existing railway, and formulate corresponding settlement indicators. The project department concluded that the most suitable construction parameters for this stratum a...

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Abstract

The invention discloses a construction method for downwards penetrating a freight railway special line by using a shield tunneling machine, and relates to the technical field of line construction. The method comprises the following steps that safety assessment is carried out on existing railway operation, corresponding settlement indexes are formulated, a downward penetrating construction scheme is determined, and a basic route scheme is formulated according to geological conditions. According to the construction method, serious influence on normal operation of a railway is avoided, the upheaval and subsidence of the railway and the earth surface are within an allowable range in construction, the safety of the railway, roads, pipelines and buildings is ensured, and environmental harm is avoided. The success of safely penetrating the trunk railway in a short distance provides specific guidance and reference for various projects of shield downward penetrating railways and important buildings, and provides reliable decision basis and technical indexes for planning and construction of urban underground projects under similar conditions in the future, the novel construction method technology promotes the progress of the underground project construction technology, and social benefits and environmental benefits are obvious.

Description

technical field [0001] The invention belongs to the technical field of line construction, and in particular relates to a construction method of using a shield machine to penetrate a freight railway special line. Background technique [0002] With the increasing development and improvement of domestic urban rail transit, many urban subway networks are becoming more and more dense and criss-crossed. Newly built subway lines inevitably overlap with existing railway lines with large passenger flow. More and more tunnel construction needs to pass under or laterally through existing subway lines at a short distance. When constructing new tunnels, it is necessary to select appropriate construction methods according to different geology and actual spatial relationship, and cooperate with appropriate stratum reinforcement and monitoring measures to ensure the safe construction of new tunnels without affecting the operation of existing subway lines. SUMMARY OF THE INVENTION [0003...

Claims

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Application Information

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IPC IPC(8): E21D9/06E21D9/12E21D11/10
CPCE21D9/06E21D9/124E21D11/105E21D11/10
Inventor 刘伯韬刘冰江鹏冯建龙姜佳庆李凯军黄威张春辉卜易宙郝一楠
Owner CHINA RAILWAY SIXTH GROUP
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