长江科学院院报2017，Vol.34Issue(2)：80-83,4.DOI:10.11988/ckyyb.20161020
加筋边坡筋材内力的非线性弹性增量分析
Nonlinear Elastic Incremental Analysis for the Reinforcement Loads of Reinforced Slopes
摘要
Abstract
A non-linear elastic incremental analysis method for reinforcement loads is introduced in view of the fact that most available methods are not suitable for reinforced soil slopes under working stress conditions.The method is based on the generalized Hooke’s law in the light of the soil-reinforcement compatible deformation at the potential failure surface and the nonlinear elastic constitutive relation of soil with Duncan-Chang model.The analytical results of three slope examples with different inclination angles by incremental analysis method are compared with those by finite element method.The comparison results reveal a very high accordance between the two methods for vertical slopes,which indicates that the incremental analysis method is very suitable for reinforced vertical slopes;but when the angle between slope surface and vertical direction increases,the difference of the results increases,which could be modified by reduction factor.Incremental analysis method has a broad application range with advantages of being simple,practical and efficient.This research is expected to promote understandings of the mechanism of the interac-tion between soil and reinforcement,and shed some light on the design of geosynthetic-reinforced slopes.关键词
加筋边坡/非线性弹性/筋材内力/有限元法/增量分析/变形协调Key words
geosynthetic-reinforced slope/nonlinear elasticity/reinforcement load/finite element method/incre-mental analysis/compatible deformation分类
建筑与水利引用本文复制引用
王春海,刘华北..加筋边坡筋材内力的非线性弹性增量分析[J].长江科学院院报,2017,34(2):80-83,4.基金项目
国家自然科学基金项目 （）
