基于网络层次分析法的盾构隧道管片渗漏水风险评估

Water Leakage Risk Assessment of Shield Tunnel Sheet Based on Network Hierarchical Analysis

为充分探究盾构隧道管片渗漏水形成机理,科学评估以此所造成的各类风险并在此基础上进行有效防控,以风险辨识理论结合网络层次分析法构建地铁盾构隧道管片渗漏水网络层次模型,并以某城市地铁隧道区间管片渗漏水为例,分析管片渗漏水的原因和特点,搭建管片渗漏水风险指标体系,同时运用此模型对该区间管片渗漏水进行综合评价。结果表明:通过网络层次分析法搭建的管片渗漏水风险评估模型可在工程实际应用中有效提高准确率,为管片防水质量控制提供参考依据。

In order to fully investigate the formation mechanism of water leakage from pipe sheet,and assess the various risks caused by it and carry out effective prevention and control,this work constructed a network hierarchy model of water leakage from pipe sheet in shield tunnel of subway based on risk identification theory combined with network hierarchy analysis,and analyzed the causes and characteristics of water leakage from pipe sheet and builds a risk index system of water leakage from pipe sheet taking water leakage from pipe sheet in a city underpass tunnel interval as an example.At the same time,a comprehensive evaluation of the water leakage of the pipe sheet in the interval was also carried out.The results show that the network hierarchical analysis of the risk assessment model can be built through the network of water leakage in the actual application of the project to effectively improve the accuracy of waterproofing quality control for the pipe sheet to provide a good reference basis.