基于改进DEMATEL-ISM的钢桁梁桥施工风险影响因素研究  

Research on risk factors of steel truss bridge jacking construction based on improved DEMATEL-ISM

作　　者：胡长明[1] 王旭东[2] 王妍蒙 范雪原 HU Changming;WANG Xudong;WANG Yanmeng;FAN Xueyuan(College of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an Shaanxi 710055,China)

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055 [2]西安建筑科技大学资源工程学院,陕西西安710055

出　　处：《工业安全与环保》2024年第7期67-73,共7页Industrial Safety and Environmental Protection

摘　　要：为提高钢桁梁桥施工过程中的安全管理,对钢桁梁桥施工中的风险因素进行分析,提出了一种基于改进DEMATEL-ISM的评价方法,首先引入三角模糊数对DEMATEL法中的直接影响矩阵进行改进,从而去模糊化以减少专家评价的主观性,再通过DEMATEL法分析各影响因素的影响度、被影响度、中心度与原因度并加以排序,对得到的主要影响因素进行初步分析,利用ISM法对筛选出的影响因素进行层次划分,得到直接层影响因素、过渡层影响因素与本质影响因素,并针对分析得到的5个本质影响因素提出深入的预防预警措施,可为钢桁梁桥施工方向的安全管理提供针对性措施,为事故预防提供一定的参考依据。In order to improve the safety management of steel truss bridge jacking construction,an improved evaluation method based on DEMATEL-ISM was proposed to analyze the risk factors of steel truss bridge jacking.Firstly,triangular fuzzy number was introduced to improve and defuzzify the direct influence matrix in DEMATEL method to reduce the subjectivity of expert evaluation.Then,DEMATEL method was used to analyze the influence degree,influenced degree,centrality degree and cause degree of each influencing factor,and sorted them to get the main influencing factors.ISM method was used to divide the selected influencing factors at different levels to get the direct influencing factors.The influencing factors and essential influencing factors of the transition layer and corresponding prevention and early warning measures were proposed based on the analysis of five essential influencing factors.The research results can provide targeted measures for the safety management of bridge jacking construction direction and provide certain reference basis for preventing accidents.

关 键 词：钢桁梁桥施工 决策试验和评价实验室 解释结构模型法 层次递阶级位模型 三角模糊数 

分 类 号：U445.1[建筑科学—桥梁与隧道工程]