人民长江2024，Vol.55Issue(6)：204-210,7.DOI:10.16232/j.cnki.1001-4179.2024.06.028
考虑土拱效应的多层土体墙后主动土压力模式研究
Study on active earth pressure mode behind multi-layer soil considering soil arching effect
摘要
Abstract
The soil arching effect is widely proven to be in geotechnical engineering.However,research on the soil pressure caused by the soil arching effect is currently limited to single-layer soil,and the distribution of active soil pressure behind multi-layer soil is still unclear.Therefore,based on the soil arching effect theory,this article proposed a solution for nonlinear active earth pressure behind retaining walls of multi-layer soil,and studied the influence of internal friction angle and friction angle be-tween wall and soil on the distribution pattern of active earth pressure based on two typical strata.The results show that the pro-posed solution can effectively describe the distribution of active earth pressure behind multi-layer soil.The calculation results are basically consistent with the numerical simulation results.When the parameters of the upper and lower soil layers are consistent,the proposed solution can degenerate into a soil pressure calculation model of single soil layer.When the friction angle between wall and soil is fully utilized,the soil pressure behind the upper soil wall is significantly affected by the internal friction angle of the soil,while the friction angle between wall and soil is partially utilized,the soil pressure behind the lower soil wall is more af-fected by the wall soil friction angle.关键词
土拱效应/挡土墙/多层土体/主动土压力Key words
soil arching effect/retaining wall/multi-layer soil/active earth pressure分类
建筑与水利引用本文复制引用
李文彪,吕延豪,游龙飞..考虑土拱效应的多层土体墙后主动土压力模式研究[J].人民长江,2024,55(6):204-210,7.基金项目
中铁第四勘察设计院集团有限公司科技研究开发计划项目(2021K027) （2021K027）
