埋入式双排桩—土体系桩间内力分配的模拟

Simulation of internal force distribution of embedded double-row anti-slide piles using FEM

采用有限元法研究了考虑桩土相互作用的双排桩的内力分配。计算了滑坡推力在两排桩之间的分布,通过桩—土共同作用模型得到了两排桩的弯矩和剪力,并分析了双排桩排距对桩身内力的影响。由此得到双排桩设计的一些有益结论。工程算例表明,采用有限元法计算双排抗滑桩的内力是可行的,增大了设计的合理性。

The internal force distribution of double-row anti-slide piles is studied by using plane strain finite dement method （FEM）. The thrust force distribution between double-row anti-slide pries are calculated by using FEM. The bending moment and sheafing force,as well as the influence of space variation between the double-row pries to internal force distribution are also analyzed, and some useful conclusions for design of double-vow piles are gained. The finding of a study indicated that the applicability of FEM is clearly exhibited.