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基于地基变形的概念对均质地基上扩底桩单桩在不同荷载大小、不同桩土模量比、不同头径比的临界桩长进行了有限元数值模拟 ,得出扩底桩单桩临界桩长与桩土模量比和头径比有关但在容许承载力范围内与荷载大小无关的结论。
Based on the concept of foundation deformation, the finite element numerical simulation of the critical length of pile under different load, different pile-soil modulus ratio and different ratio of head-diameter is carried out. Pile length and pile-soil modulus ratio and the ratio of head diameter but within the allowable bearing capacity has nothing to do with the size of the load conclusion.