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Subway shield interval short-distance underneath pass pipe-jacking tunnel settlement control standard setting method

A technology of subway shield and control standards, used in tunnels, earth-moving drilling, instruments, etc.

Active Publication Date: 2020-08-14
ERCHU CO LTD OF CHINA RAILWAY TUNNEL GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, the above scheme only involves settlement control or settlement prediction under the subway tunnel, and does not involve the establishment of settlement standards.

Method used

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  • Subway shield interval short-distance underneath pass pipe-jacking tunnel settlement control standard setting method
  • Subway shield interval short-distance underneath pass pipe-jacking tunnel settlement control standard setting method
  • Subway shield interval short-distance underneath pass pipe-jacking tunnel settlement control standard setting method

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Embodiment Construction

[0042] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0043] Such as figure 1 As shown, this embodiment provides a method for formulating the settlement control standard of the subway shield section under the short-distance pipe-jacking tunnel, which is carried out according to the following steps:

[0044] (1) First, carefully study the engineering survey and design data, select the key mileage section of the project to establish a numerical simulation calculation model, and select stratum and structural parameters according to the survey data.

[0045] In this embodiment, the existing pipe-jacking tunnel is a municipal road pipe-jacking tunnel, which consists of 4 pipe-jacking tunnels, including 2 non-motor vehi...

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Abstract

The invention discloses a subway shield interval short-distance underneath pass pipe-jacking tunnel settlement control standard setting method. Three-dimensional numerical simulation is carried out onunderneath pass construction by adopting large numerical simulation calculation software; the influence rule of the underneath pass construction on the deformation of the existing jacking pipe tunnelstructure is revealed; and an existing tunnel settlement control standard which takes numerical simulation as a basis and takes the allowable opening amount of a tunnel pipe joint seam and the allowable minimum additional curvature radius of a structural line type as control targets is established, and the method has the correctness of a numerical calculation prediction rule and the feasibility of a settlement control standard making method.

Description

technical field [0001] The invention relates to the technical field of construction control of a newly-built tunnel passing directly under an existing underground structure, in particular to a settlement control standard formulation method of a subway shield section passing directly under an existing pipe-jacking tunnel. Background technique [0002] With the continuous development of urban rail transit, the construction control of newly built tunnels close to and under the existing underground structures has gradually become one of the increasingly prominent hot engineering issues in the process of subway construction. Research reveals the deformation rules of existing structures caused by subway underpass construction, and scientifically formulates displacement control standards during underpass construction, which is of great significance for rationally formulating construction plans and realizing safety management for underpass construction. [0003] At present, in terms...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F30/23G06T17/20G06F111/10E21D9/00
CPCG06F30/13G06F30/23G06T17/20G06T2210/04G06F2111/10E21D9/00
Inventor 杨建礼韩现民杨娟黄章君董书滨冯飞李其宾李志军汪建卫王坤郑红军董武斌刘智华杨艳玲谭建兵林兵张随涛马晶晶王新城张青
Owner ERCHU CO LTD OF CHINA RAILWAY TUNNEL GRP
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