河南城建学院学报2024，Vol.33Issue(4)：72-79,8.DOI:10.14140/j.cnki.hncjxb.2024.04.010
平动模式下墙后有限黏性填土破坏模型试验研究
Model test study on failure of finite cohesive backfill behind retaining wall under translational mode
摘要
Abstract
Based on the model test of transparent soil and the image analysis of PIVlab,the deformation charac-teristics and failure rules of soil behind the retaining wall under the translational mode are studied by taking the finite cohesive fill between the back of the retaining wall and adjacent buildings as the research object.The re-sults show that in the process of the retaining wall moving away from the backfill,the shear sliding surface gradually forms and produces secondary sliding,and finally evolves into a quadratic curved sliding surface run-ning from the wall heel to the fill surface,with an angle of 57° to the horizontal,and the limit between finite and semi-infinite fill is b/h=0.7.The failure mode of the backfill under the finite width is different from that under the semi-infinite condition.The sliding surface has an intersection point on the wall of the adjacent buid-ing,with an angle of about 55° to the horizontal,and there is no multiple reflection like sand.关键词
平动模式/有限黏性填土/土体破坏模式/滑动面特征Key words
translational mode/finite cohesive backfill/soil failure mode/sliding surface characteristics分类
建筑与水利引用本文复制引用
王润北,吴能森..平动模式下墙后有限黏性填土破坏模型试验研究[J].河南城建学院学报,2024,33(4):72-79,8.基金项目
福建农林大学产学合作项目(KH1500590) （KH1500590）
