试述地下连续墙塌孔断桩及接缝涌水处理措施

Discussion on the Treatment Measures of Collapse Hole and Broken Pile of Underground Continuous Wall and Seam Water Inrush

我国城市轨道交通的深基坑工程有很多,地下连续墙非常硬且完整,能够有效应对渗透,还很安全,因此,经常用于情况较差的地层深基坑。论文通过轨道交通线风井围护的结构工程,不间断灌筑混凝土,槽壁塌孔断桩,提出接缝处涌水涌砂险情的治理对策。

There are many deep foundation pit projects of urban rail transit in China.The underground continuous wall is very hard and complete,which can effectively cope with infiltration and is very safe.Therefore,it is often used for deep foundation pit of stratum with poor condition.Through the structural engineering of the air shaft enclosure of the rail transit line,the paper puts forward the control measures of water and sand gushing at the joints by continuously pouring concrete and collapsing holes and broken piles.