汾河新二坝基础处理设计

Foundation Treatment Design of the New Fenhe Second Dam

新二坝工程建在汾河干流河道上,闸坝基础为含细粒土砂的粉土质砂,基础存在地震液化,同时地基承载力要求不小于最大基底应力,根据上述情况选择复合地基中碎石桩方案、进行地基承载力、变形计算,达到地基处理的目的。

The new second dam project is built on the main stream channel of Fen River.The foundation of the gate dams is silty earth sand containing fine grains of earth sand.There is seismic liquefaction on the foundation,and the bearing capacity of the foundation must be not less than the maximum base stress.According to the above situation,the scheme of gravel pile in the composite foundation is selected,and the foundation bearing capacity and deformation are calculated to achieve the purpose of ground treatment.