软土地层地铁车站端头盾构接收井突涌水原因分析与治理研究

Cause Analysis and Control Research of Sudden Water Inrush in Shield Receiving Well of Metro Station in Soft Soil Layer

根据南京地铁某软土地层地铁车站盾构接收井混凝土套箱发生突涌水险情的现场调查资料,分析了险情事件发生的原因,采用了套箱加固、地面注浆、环境监控、洞内注浆、管片加固等综合治理措施,解决了盾构接收井混凝土套箱突涌水险情,取得了良好的治理效果。

The causes of the water inrush are analyzed according to the field investigation data of the water inrush in the concrete box of shield receiving well of a soft ground subway station in Nanjing.The comprehensive treatment measures such as casing reinforcement,ground grouting,environmental monitoring,grouting in tunnel and segment reinforcement have been adopted to solve the water risk of concrete casing surge in shield receiving well,with good treatment effect.