大型桩-筏基础筏板竖向位移及位移差变化特征

Change characteristics of vertical displacement and its difference of raft in large pile-raft foundation

摘要: 采用桩筏土共同作用分析法对筏板竖向位移及位移差随板厚变化特征进行分析,并指出:随板厚变化,筏板位移具有分区性,板心位移及板边位移在各自的特征厚度附近较小的厚度范围内变化最快,荷载水平对特征厚度基本没有影响。

Abstract: This paper analyses the characteristics of vertical displacement and its difference changed with raft thick using analysis method of common affection of raft and soil,and points out that the displacement of raft can be separate in areas,the displacement changes of center and edge are quicker in small range nearby characteristic thick,volume of load is little effect on characteristic thick.