土木工程与管理学报2017，Vol.34Issue(5)：32-38,7.
地铁车站深基坑施工风险识别与评价
Risk Identification and Evaluation for Foundation Pit Construction of Subway Station
摘要
Abstract
Due to the complex construction environment,the deep excavation of station foundation pits would inevitably cause the high risk in soft soil. It was difficult to determine the risk probability because of the coupling of risk factors,and the accidents were broken in foundation pit construction. In this paper,the risk factors were given based on in-situ experiences of similar engineering both in China and abroad. The risk list was established by identifying risk events or factors based on work breakdown structure (WBS). Expert investigation method and analytic hierarchy process (AHP ) were employed to study the correlation of each one of the risk factors and the calculation of the risk weight. And then we established the risk occurrence probability,losses and level. The membership degree of the risk is calculated by trapezoidal membership function. The fuzzy comprehensive evaluation was used to identification the construction risk of station foundation pit. In the foundation pit construction of Xiamen subway station,the case study shows that the total risk is assessed as level 3,which is acceptable. The consequence is coincidence with the reality. And the risk reaction measures were presented by the risk level in this paper. These methods could provide decision-making basis for the risk control of deep foundation pit construction.关键词
基坑工程/施工风险/模糊评价/风险等级/风险损失Key words
foundation pit/construction risk/fuzzy evaluation/risk level/risk loss分类
交通工程引用本文复制引用
郭健,钱劲斗,陈健,殷俊,柯晓峰..地铁车站深基坑施工风险识别与评价[J].土木工程与管理学报,2017,34(5):32-38,7.基金项目
住建部科学技术项目计划(2015-K3-04) （2015-K3-04）
武汉轻工大学研究生教育教学改革研究与实践项目(YY2015006) （YY2015006）
