计算力学学报2018，Vol.35Issue(3)：310-314,5.DOI:10.7511/jslx20170722001
考虑侧面摩擦的侧限压缩模型的数值解法
Numerical method of confined compression model with lateral friction
摘要
Abstract
When a box-type foundation is sunk in place,the deformation calculation of the soil in bulkhead can be regarded as the confined compression model problem.The relationship between the lateral friction caused by the upper load and the soil stress is quite complicated.The differential equations of the confined compression model are listed by simplifying the model,and the difficulties in analytic calculation of the equations are analyzed.According to the characteristics of the frictional stress boundary condition,an iteration method is used to solve the equation numerically.Subsequently,the convergence process is demonstrated,and the nonlinear distribution law of horizontal stress on contact surface and displacement on soil surface is obtained.In addition,these calculated values are compared with the numerical simulation results of ABAQUS.The results show that the iteration method has a high convergence speed and a stable calculation process.It has a certain reference value for the numerical solution of other differential equations with variable coupling boundary condition.关键词
侧限压缩模型/箱筒型基础/侧面摩擦/迭代法/数值分析Key words
confined compression model/box-type foundation/lateral friction/iterative method/numerical analysis分类
建筑与水利引用本文复制引用
李文轩,曹永勇,张文前,姜彦彬..考虑侧面摩擦的侧限压缩模型的数值解法[J].计算力学学报,2018,35(3):310-314,5.基金项目
国家自然科学基金(51609147) （51609147）
江苏省自然科学基金(BK20151071) （BK20151071）
江苏省交通运输科技项目(2017T12) （2017T12）
南京水利科学研究院基金(Y317010)资助项目. （Y317010）
