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采用三维有限元方法,就工程中常见的桩筏基础在竖向荷载作用下桩—地基土—筏板共同作用时的特性进行探讨,重点分析筏板分块面积大小对桩土分担比、筏板内力(特指弯矩和扭矩)、最大沉降量和最大沉降差的影响,从而得出有益的结论并提出了设计建议。
The three-dimensional finite element method is used to discuss the characteristics of common pile-raft foundations under the action of vertical loads, and the effect of sub-block size of raft on pile-soil ratio, raft Plate internal forces (especially bending moment and torque), the maximum settlement and the maximum settlement difference, and thus draw useful conclusions and proposed design recommendations.