软土地铁盾构法隧道工程风险识别与应对

Risk identification and handling in the shield tunneling of metro in soft soil

结合上海地铁7号线工程,提出以动态风险识别过程为主线、以静态风险识别为手段的风险识别方法,对地铁盾构法隧道工程建设的风险进行了识别。在风险识别的基础上,结合以往软土隧道工程建设的实践经验、数据资料以及隧道工程理论,重点研究了盾构法隧道工程实施过程中一些典型风险的应对措施。另外,对跨越黄浦江段隧道、联络通道等特殊工程的风险进行了详细的分析与研究。

Based on Shanghai metro M7 line project, a risk identification method is put forward which takes dynamic risk identification process as the mainstream and static risk identification as the tool. The method was applied to the risk identification for the above - mentioned project. On the basis of risk identification incorporating the practical experience in soft ground tunneling, available data and literatures as well as the tunnel engineering theories, risk handling measures for some typical risks in the process of shield tunneling are studied. In addition, the risks of Huangpu Rivercrossing tunnel and communication galleries between the up line tunnel and down line tunnel are analyzed in detail.