湖南大学学报（自然科学版）2025，Vol.52Issue(5)：17-27,11.DOI:10.16339/j.cnki.hdxbzkb.2025044
抗滑桩加固边坡大变形破坏三维物质点模拟
Three-dimensional Simulation of Large Deformation Failure for Slope Reinforced with Anti-slide Piles Based on Material Point Method
摘要
Abstract
Current studies on the three-dimensional(3D)large deformation analysis of slopes with reinforcement structures remain limited.In this study,a 3D numerical model for a slope reinforced with anti-slide piles is constructed using the material point method.The failure modes of the slope with anti-slide piles are analyzed,and the effects of the pile length,location,and spacing on slope failure are also discussed.The results show that,when the anti-slide piles are located at the slope toe,the soil above the anti-slide piles is prone to local failure,inducing overtopping and sliding.Increasing the pile length reduces the area of the plastic zone,but exacerbates shallow sliding and increases runout.When the anti-slide piles are located in the middle of the slope,the displacement of the slope after failure is the smallest,and the reinforcement effect is the best;however,when the pile length is roughly the same as the depth of the potential slip surface,the presence of piles may lead to a longer runout distance after failure.The increase of the pile spacing causes the plastic flow of the soil between the piles.When the anti-slide piles are located at the slope crest,the soil beneath them is easily dislodged and slides and the reinforcement effect is poor.关键词
抗滑桩/加固/大变形/物质点法/边坡稳定性Key words
anti-slide pile/reinforcement/large deformation/material point method/slope stabitity分类
土木建筑引用本文复制引用
马翔宇,汪华安,陆盟,周鸣亮,张洁..抗滑桩加固边坡大变形破坏三维物质点模拟[J].湖南大学学报（自然科学版）,2025,52(5):17-27,11.基金项目
国家自然科学基金资助项目(42072302),National Natural Science Foundation of China(42072302) （42072302）
国家重点研发计划项目(2021YFB2600504),National Key Research and Development Program of China(2021YFB2600504) （2021YFB2600504）
国家资助博士后研究人员计划(GZB20240533),Postdoctoral Fellowship Program of CPSF(GZB20240533) （GZB20240533）
