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MIC-based shield construction surface deformation influence factor determination method

A technology of influencing factors and surface deformation, applied in the direction of earthwork drilling, instruments, mining equipment, etc., can solve the problems of not being able to effectively consider the degree of importance, and not being able to directly obtain important influencing factors

Active Publication Date: 2021-02-19
CHINA RAILWAY 20 BUREAU GRP
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  • Description
  • Claims
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Problems solved by technology

At present, the process of surface deformation prediction cannot effectively consider the importance of each influencing factor, and in addition, the important influencing factors of each influencing factor cannot be directly obtained

Method used

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  • MIC-based shield construction surface deformation influence factor determination method
  • MIC-based shield construction surface deformation influence factor determination method

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Embodiment Construction

[0059] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and this embodiment. It should be pointed out that the following detailed descriptions are illustrative and intended to provide further descriptions of the present invention. Unless otherwise specified, the present invention All technical and scientific terms used in the invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0060] like figure 1 As shown, a method for determining the influencing factors of ground deformation in shield tunneling based on MIC is provided, which specifically includes the following steps:

[0061] Step 1. During the shield construction process, obtain the surface deformation and the surface deformation influencing factors of the construction area where one shield segment ring is located; wherein, the surface deformation influencing...

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Abstract

The invention discloses an MIC-based shield construction surface deformation influence factor determination method, which comprises the following steps of 1, in the shield construction process, obtaining the surface deformation amount and surface deformation influence factors of a construction region where I shield segment rings are located; 2, respectively preprocessing the ground surface deformation final values and the ground surface deformation influence factors of the construction areas where the I shield segment rings are located; 3, processing the L preprocessed influence factor sets and the preprocessed deformation set by adopting an MIC method to obtain weights of the surface deformation influence factors; and 4, determining important influence factors of shield construction surface deformation. The method is simple in step, the weight of each influence factor of the ground surface deformation is obtained to determine the important influence factor of the shield construction ground surface deformation, so that decision support is provided for ground surface deformation control in the shield construction process, and the safety of the shield construction is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of shield tunneling, and in particular relates to an MIC-based method for determining influencing factors of surface deformation of shield tunneling. Background technique [0002] Shield method construction is a kind of underground excavation construction technology that is widely used in the tunnel excavation process. During the construction process, the excavation of the ground may easily cause the surrounding soil to extrude or loosen, which will easily cause the loss of the ground and cause surface deformation. problem occurs. When the surface deformation exceeds a certain safety value, it is easy to cause uneven deformation of buildings along the line, damage to underground pipelines, and even lead to unsafe accidents such as tunnel collapse during excavation. Therefore, it is very important to know the surface deformation in real time during shield excavation, which makes the influencing factors of su...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01N3/00E21D9/06G06F17/10
CPCG01N33/24G01N3/00G06F17/10E21D9/0607G01N2203/0019G01N2203/0075G01N2203/0218G01N2203/0244G01N2203/0676G01N2203/0682
Inventor 于祥涛李增良岳琳辉仲维玲王存宝
Owner CHINA RAILWAY 20 BUREAU GRP
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