富水砂层中盾构下穿建筑物施工技术

Construction Technique on Passing underneath through Construction with Shield Method in Water-rich Sand Layer

盾构法穿越富水砂层过程中,如何控制施工沉降、确保周边建(构)筑物的安全是地铁建设的关键技术之一。结合北京地铁7号线大郊亭站至百子湾站区间在富水砂层内下穿楼房的工程实例,为类似工程提供参考。

During passing through water - rich sand layer with shield method, how to control construction settlement and guarantee the safety of surrounding constructions is one of the key technologies in subway construction. References are provided for similar projects combining with the project case of passing underneath through buildings in water - rich sand layer between Dajiaoting station and Baiziwan station of No. 7 subway line in Beijing.