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Research on Construction Safety Risk Assessment of New Subway Station Close-Attached Undercrossing the Existing Operating Station

机译：新地铁站施工安全风险评估研究现有车站欠附近

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摘要

With the large-scale construction of urban rail transit, it will lead to the intersection and transfer of various lines, resulting in more transfer stations. The transfer station is a collection point for multiple subway lines, which is difficult to construct and has a high construction risk. The construction of the new subway station and the operation of the existing subway station are mutually influenced during the close-attached undercrossing construction. Considering the two objectives of ensuring the smooth operation of the existing subway station and the safe construction of the new subway station, this paper comprehensively analyzes the possible safety risk factors during the construction of the new subway station close-attached undercrossing the existing operating station and identifies 75 preliminary risk factors by means of literature review and on-site investigation. Then the Delphi Method and Entropy Weight Method are used to screen the preliminary risk factors, and the main risk factors with greater influence are retained, so that 49 key risk factors are obtained. According to the list of key risk factors, a safety risk assessment index system including 2 first-level indexes, 12 second-level indexes, and 49 third-level indexes is established. Based on the index system, this paper establishes a safety risk assessment model by using Analytic Hierarchy Process (AHP) and Fuzzy Matter Element Method (FMEM). The model first calculates the weight of each index by using AHP, calculates the comprehensive correlation degree of each index by using FMEM, classifies the risk grade of each index according to the comprehensive correlation degree, and determines the risk grade of the project. Finally, the safety risk assessment model is applied to the Dongdalu Station project of Chengdu Rail Transit Line 8. The result shows that the risk grade of this project is moderate risk, which is basically consistent with the actual situation, indicating that the model has good practicability. In this paper, a new safety risk assessment model for subway close-attached undercrossing construction is proposed, which fills the gap in the field of safety risk assessment for the construction of the new subway station close-attached undercrossing the existing operating station.
机译：随着城市轨道交通的大规模建设，它将导致各种线路的交叉路口和转移，导致更多的转移站。转移站是多个地铁线的收集点，这难以构建并具有高建施工风险。新地铁站的构造和现有地铁站的操作在紧密的欠载施工期间相互影响。考虑到确保现有地铁站顺利运行的两个目标和新地铁站的安全建设，本文全面分析了在建造现有操作站的新地铁站建设中的可能安全危险因素。通过文献综述和现场调查来确定75个初步风险因素。然后，Delphi方法和熵权法用于筛选初步风险因素，保留具有更大影响的主要风险因素，从而获得49个关键的危险因素。根据关键危险因素的清单，建立了一个安全风险评估指标系统，包括2个第一级指标，12个第二级指标和49个三级指标。基于指标体系，本文采用分析层次处理（AHP）和模糊物元素方法（FMEM）建立了安全风险评估模型。该模型首先通过使用AHP来计算每个索引的重量，通过使用FMEM来计算每个索引的综合相关程度，根据综合相关程度对每个指数的风险等级进行分类，并确定项目的风险等级。最后，安全风险评估模型应用于成都轨道交通线的东大陆站项目。结果表明，该项目的风险等级是适中的风险，这与实际情况基本一致，表明该模型具有良好状态实用性。本文提出了一种新的地铁安全风险评估模型，填补了安全风险评估领域的差距，为现有运营站的新地铁站建设。

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  • 来源
    《Mathematical Problems in Engineering》 |2019年第16期|3215219.1-3215219.20|共20页
  • 作者

    Luo Zhenhua; Zeng Li; Pan Haize; Hu Qijun; Liang Bo; Han Jianqiang;

  • 作者单位

    Southwest Petr Univ Sch Civil Engn & Architecture Chengdu 610500 Sichuan Peoples R China;

    Southwest Petr Univ Sch Civil Engn & Architecture Chengdu 610500 Sichuan Peoples R China;

    Southwest Petr Univ Sch Civil Engn & Architecture Chengdu 610500 Sichuan Peoples R China;

    Southwest Petr Univ Sch Civil Engn & Architecture Chengdu 610500 Sichuan Peoples R China;

    Sichuan ChuanJiao Cross Rd & Bridge Co Ltd Deyang 618399 Peoples R China;

    China Railway Acad Co Ltd Chengdu 611731 Sichuan Peoples R China;

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