桩筏基础下地基土的荷载传递特性

桩筏基础由桩和筏组成一种联合基础，筏将大部分总荷载传递给桩，同时其本身也承担总荷载的一部分。因此，充分认识桩筏基础对上部荷载向地基土的传递特性是非常必要的。该文提出一个桩筏基础传递荷载的计算模型，模型考虑了桩的布置形式对地基接触压力的影响，同时还考虑了桩的受荷过程中的变化特性，并详细分析了桩与筏之间的荷载分配问题。

Loading Transfer Properties of Foundation Soil under Pile- raft Foundation

The use of the pile- raft foundations,a conbination of raft foundation with piles,to transfer the load of buildings to the supporting soil can be important. The raft has not only to distribute the load to the piles, but also to carry a good portion of the total loads. In this paper, an analytical model dealing with the influence of the pile configuration on the contact pressure and pile load development is presented and also the load division between raft and piles is considered.