深圳大学学报（理工版）2026，Vol.43Issue(5)：582-590,9.DOI:10.3724/SP.J.1249.2026.05582
有限土体被动土压力的强度准则适应性分析
Evaluation of strength criteria for passive earth pressure in finite soil masses
摘要
Abstract
To evaluate the applicability of different strength criteria for calculating the passive earth pressure of finite-width soil masses,a calculation model for the passive earth pressure of finite-width cohesionless soil is developed using the horizontal differential element method.Based on this model,passive earth pressure is analyzed using four strength criteria:the Mohr-Coulomb criterion,the spatially mobilized plane(SMP)criterion,the Lade-Duncan criterion,and the generalized Mises criterion.The accuracy of the proposed model is validated through comparison with laboratory test results.Results show that the passive earth pressure in finite soil masses exhibits a typical nonlinear distribution with depth.At a given depth,the passive earth pressure increases with the increase of the internal friction angle and the decrease in the width-to-height ratio of the soil mass.The Mohr-Coulomb strength criterion yields conservative predictions because the effect of the intermediate principal stress is neglected.In contrast,the SMP and Lade-Duncan strength criteria,which account for the intermediate principal stress,produce predictions that agree more closely with the experimental results.The generalized Mises strength criterion performs well for soils with small internal friction angles,but it is not suitable when the internal friction angle exceeds 30°.This study provides theoretical basis for the rational selection of strength criteria in the design of retaining structures involving finite soil masses for practical geotechnical engineering.关键词
岩土工程/被动土压力/强度准则/有限土体/中主应力/水平微分单元法Key words
geotechnical engineering/passive earth pressure/strength criterion/finite soil mass/intermediate princi-pal stress/horizontal differential element method分类
建筑与水利引用本文复制引用
董雅丞,陕耀,周彤,陈世挺,刘明,韩立勇,黄淼,金鑫..有限土体被动土压力的强度准则适应性分析[J].深圳大学学报（理工版）,2026,43(5):582-590,9.基金项目
National Natural Science Foundation of China(52378458) 国家自然科学基金资助项目(52378458) （52378458）
