提升泵站采用钻孔灌注桩作为基础承压桩及抗拔桩;沉井深度范围内为软弱土层,旋喷桩对井壁下土层进行地基处理,以防止沉井突沉;旋喷桩对井壁内桩间土进行地基加固,减少基底出现流砂、突涌等现象;文中详细介绍了软基处理及沉井设计计算分析过程。 Ascension pumping stations are used as foundation pressure-bearing piles and uplift piles. As for the depth of caisson, they are soft soil layers. The pile is used to reinforce the ground between the piles in the lining of the shaft so as to reduce the occurrence of runoff and inrush phenomena in the foundation. The calculation and analysis process of the soft foundation treatment and the caisson design are described in detail.