隧道盾构施工关键风险因素辨识研究  

Identification of key safety risk factors for tunnel shield construction

作　　者：李蒙[1,2] 龚雨洁 余宏亮 LI Meng;GONG Yujie;YU Hongliang(School of Management,Wuhan University of Science and Technology,Wuhan Hubei 430081,China;Center for Hubei Industrial Policy and Management Research,Wuhan Hubei 430081,China;School of Civil Engineering and Mechanics,Huazhong University of Science and Technology,Wuhan Hubei 430074,China)

机构地区：[1]武汉科技大学管理学院,湖北武汉430081 [2]湖北省普通高等学校人文社会科学重点研究基地产业政策与管理研究中心,湖北武汉430081 [3]华中科技大学土木工程与力学学院,湖北武汉430074

出　　处：《中国安全科学学报》2018年第6期141-146,共6页China Safety Science Journal

基　　金：国家自然科学基金资助(71701155);湖北省教育厅科研计划项目(Q20141109);武汉科技大学服务科学与工程研究中心开放基金资助(CSSE2017GB15)

摘　　要：为准确辨识隧道盾构施工的关键风险因素,提出一种结合探索性因子分析（EFA）和结构方程模型（SEM）的分析方法。向4个城市隧道盾构施工项目发放共378份问卷,收集受访者对隧道安全风险总体分布的看法;基于EFA从36个风险因素中提取7个公共风险因素,并运用SEM检验隧道盾构施工安全性与7个公共风险因素间的关系;通过假设检验和拟合优度检验对所建立的SEM模型进行验证;运用路径系数描述各个风险因素对安全性的影响。研究发现：盾构机（TBM）的进洞和出洞的风险对地铁施工安全的影响最大;用该方法可确定隧道盾构施工中主要的风险因素,为改善地铁施工安全管理提供指导。In order to examine the key safety risk factors in tunnel shiled construction in China,a systematic method by integrating EFA and SEM was proposed. 7 common risk factors were extracted by EFA from 36 questionnaire items,relationships between the safety of tunnel shield construction the 7 public factors were examined by SEM. The established model was validated through hypothesis tests and goodness-of-lit tests. The inuences of public factors on safety in metro construction were characterized by the path coefficients in the model. It was found that the safety is profoundly influenced by risks associated with the launching and arrival of tunnel boring machine（ TBM）. Provide guidance for improving the safety management of subway construction.

关 键 词：安全风险 盾构施工 探索性因子分析(EFA) 结构方程模型(SEM) 问卷调查 

分 类 号：X948[环境科学与工程—安全科学]