A comprehensive evaluation method and application of shield tunnel structure health based on variable weight theory

IF 3.5 Q1 ENGINEERING, MULTIDISCIPLINARY

International Journal of Structural Integrity Pub Date : 2022-04-19 DOI:10.1108/ijsi-12-2021-0128

Fei Sun, Changjun Li

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引用次数: 0

Abstract

PurposeIn order to improve the comprehensive evaluation level of shield tunnel structure health, taking a subway tunnel section as an example, and combined with the onsite measured data, such as regular inspection, health monitoring and disease remediation, this paper introduces the variable weight theory to improve the traditional fixed-weight evaluation method from structural deformation, current durability and disease status.Design/methodology/approachConsidering the influence of the fluctuation of each index value on the index weight, a comprehensive structural health evaluation model of shield tunnel based on an improved variable weight matter-element extension model is proposed.FindingsCompared with the traditional fixed-weight evaluation method, this model can correct the evaluation distortion caused by the fluctuation of index value and has optimal effect.Originality/valueThe sensitive analysis shows that several key indicators of the main threats to tunnel structure are obtained to improve the efficiency of operation, maintenance and management of shield tunnel structure.

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基于变权理论的盾构隧道结构健康综合评价方法及应用

目的为了提高盾构隧道结构健康综合评价水平，以某地铁隧道段为例，结合定期检查、健康监测、疾病修复等现场实测数据，引入变权理论，从结构变形、，目前的耐用性和疾病状况。设计/方法/方法考虑到各指标值的波动对指标权重的影响，提出了一种基于改进变权物元可拓模型的盾构隧道结构健康综合评价模型。结果与传统的固定权重评价方法相比，该模型能够纠正指标值波动引起的评价失真，具有最优的评价效果。原创性/价值敏感性分析表明，获得了隧道结构主要威胁的几个关键指标，以提高盾构隧道结构的运营、维护和管理效率。

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来源期刊

International Journal of Structural Integrity ENGINEERING, MULTIDISCIPLINARY-

CiteScore

5.40

自引率

14.80%

发文量