Adjacent building safety quantitative evaluation method in tunnel construction

A quantitative evaluation and tunnel construction technology, applied in data processing applications, instruments, calculations, etc., can solve problems such as reducing the credibility of evaluation results, achieve great reference significance and promotion value, eliminate random uncertainty, and avoid information loss The effect of interfering with subjective factors

Active Publication Date: 2013-05-08
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

However, due to factors such as the incompleteness of historical comprehensive data, the limitations of expert knowledge, and the uncertainty of empirical judgment and expression, the classification of evaluation ind

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  • Adjacent building safety quantitative evaluation method in tunnel construction
  • Adjacent building safety quantitative evaluation method in tunnel construction
  • Adjacent building safety quantitative evaluation method in tunnel construction

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] This embodiment provides a quantitative evaluation method for the safety of adjacent buildings in tunnel construction, taking the safety evaluation of adjacent buildings along the cross-river tunnel of Wuhan Metro as an example, as follows figure 1 and figure 2 shown, including the following steps.

[0020] Step 1: Build an evaluation index system. Combining prior knowledge and engineering practice experience such as subway tunnel construction standards and specifications, design and construction manuals, and scientific and technological literature, it summarizes the law of safety impacts of tunnel construction on the surrounding environment (especially adjacent buildings), such as figure 1 As shown, a comprehensive evaluation index system including four criterion layers representing tunnel related parameters, hydrogeological factors, building...

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Abstract

The invention belongs to the field of engineering risk evaluation, and particularly relates to an adjacent building safety quantitative evaluation method in tunnel construction. The adjacent building safety quantitative evaluation method in the tunnel construction mainly comprises the following steps of step 1, building an evaluation index system, step 2, building a standard extensible cloud model of evaluation indexes, step 3, computing and obtaining a weight matrix of the evaluation indexes through a subjective and objective weighting method, step 4, computing a relevancy matrix of a to-be-evaluated object through cloud relevancy computing, and obtaining a safety evaluation grade of the to-be-evaluated object through a weighted average method and combination of an evaluation index weighted value and the relevancy matrix, and step 5, measuring the reliability of safety evaluation grade. The adjacent building safety quantitative evaluation method in the tunnel construction combines advantages of a cloud model and an extensible theory, and provides effective decision support advices for protection and control of an adjacent building of different safety grades.

Description

technical field [0001] The invention belongs to the field of engineering risk evaluation, in particular to a method for quantitatively evaluating the safety of adjacent buildings during tunnel construction. Background technique [0002] Tunnel construction will inevitably cause certain disturbances to the surrounding soil, which will cause soil deformation and surface settlement, especially the safety impact on adjacent buildings is more obvious. When the ground movement and surface deformation exceed a certain limit, it will cause accidents such as ground subsidence and damage to surrounding buildings, resulting in serious economic losses and adverse social impacts. Especially for urban underground tunnel projects, they generally pass through the central area of ​​the city. Due to dense buildings, narrow construction sites, complex geological conditions, dense underground pipe network, and limited traffic, it is necessary to strictly control the damage of tunnel constructio...

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Application Information

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IPC IPC(8): G06Q50/08
Inventor 吴贤国张立茂曹靖瞿海周蒋雪李树琴周格迁
Owner HUAZHONG UNIV OF SCI & TECH
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