富水砂层盾构始发井防涌水检测与加固

基于广州地铁6号线大坦沙站盾构始发井的实践,研究富水砂层中破除盾构井端头门时防涌水的施工监测和工程检测方法,根据检测和监测结果,基于朗金土压力理论进行计算分析,提出相应的加固措施和方法。介绍了具体的防水加固措施和效果。

Monitoring and Reinforcement of Water Gushing Prevention in Shield Launching Shaft in Water-rich Sand Layer

The article based on the construction of the shield launching shafts in Guangzhou Subway No.6 Datansha Station,studies the construction monitoring method and project testing method for water gushing prevention when the shield shaft terminal doors are demolished in the water-rich sand layer.According to the testing and monitoring results,and based on the computing analysis with Rankine's earth pressure theory,it puts forward relevant reinforcing measures and methods.Concrete waterproofing and reinforcing mea...