紧邻既有铁路高水位深基坑多重围护施工技术

Multiple exclosure construction technology of high water level deep foundation pit close to existing railway

结合太焦铁路晋中特大桥405号~406号墩深基坑施工,介绍了一种新型的临近既有铁路深基坑围护结构,该结构综合采用钻孔防护桩+钢板桩+混凝土挡墙三种防护形式,可有效确保基坑安全快速施工。

Combined with the deep foundation pit construction of Taijiao railway Jinzhong grand bridge 405# ~ 406# piers,this paper introduces a new type deep foundation pit exclosure structure,which is adjacent to two existing railway. The structure is comprehensive protective forms including bored protective pile,steel sheet pile and concrete guard wall. It effectively ensures safe and rapid construction of foundation pit.