南京轨交机场线复合盾构掘进施工技术  

Composite Shield Tunneling Construction Technology in the Airport Line of Nanjing Metro

作　　者：顾春华[1] 

机构地区：[1]上海隧道工程股份有限公司

出　　处：《地下工程与隧道》2014年第2期22-25,60,共4页Underground Engineering and Tunnels

摘　　要：南京轨交机场线工程所处地层条件复杂,地质软硬不均,采用复合盾构进行施工。详细分析了盾构在全断面黏土、上软下硬地层及全断面岩层中掘进所存在的风险及应对措施。总结了复合盾构在安山岩及砂岩等地层中掘进的控制要求。其对今后类似地层盾构施工具有借鉴和参考的意义。Since the project of Airport Line of Nanjing Metro is characterized by complicated stratum conditions and irregular distribution of soft and hard soil,the composite shield construction is adopted.This article analyzes in detail the risks existing during shield excavation in full-section clay stratum,upper soft & lower hard stratum and full-section stratum and corresponding countermeasures.It also summarizes the controlling requirements for the excavation of composite shield tunneling machine in strata like andesitic rock and sandstone,which provides certain reference value for future use of shield construction in similar strata.

关 键 词：南京机场线 复合盾构 复杂地层 TBM模式 安山岩 砂岩 施工风险 施工技术 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]