摘要
在深入研究陡坡桩承载特性基础上,考虑桩顶及桩身复杂受荷条件根据受力特性将陡坡桩分为自由段、滑坡段和嵌固段,并针对各分段建立单元受力模型。在此基础上引入平面杆系有限单元法,通过对桩体结构离散、计算单元刚度矩阵以及合成总体刚度矩阵,提出了一种可以考虑桩-土相互作用的陡坡桩内力及位移计算分析方法。算例分析结果表明,方法计算准确,能较好的揭示陡坡桩桩土相互作用机理,可为同类工程提供参考。
By analyzing the bearing capacity of pile in steep slope and considering the complex load,the pile was divided into three separations： free separation,loading separation and embedded separation,and the analyze model for each separations was established. Finite bar elements were used,by discretizing the pile structure,calculating elemental stiffness matrix and global stiffness matrix,to propose a method to analyze the internal force of pile in steep slope which can consider the pile-soil interaction. The example analysis shows that the proposed method is correct and revealing the mechanism of pile-soil interaction well. Therefore,it can provide a reference for engineering practice.
出处
《公路工程》
北大核心
2016年第2期140-143,156,共5页
Highway Engineering
