化工矿产地质2024，Vol.46Issue(1)：82-88,7.
返包式加筋土挡墙侧向位移影响因素分析
Analysis of influencing factors on lateral displacement of wrap reinforced soil retaining wall
摘要
Abstract
In the current design codes,only some codes give the ratio range or empirical formula of the maximum panel displacement and wall height,and do not clearly point out the influencing factors of panel displacement.Through numerical simulation,this paper analyzes the influence of wrap reinforced soil retaining wall on the lateral displacement of the retaining wall under different design factors.The analysis results show that the designed reinforcement stiffness,length and spacing all have a significant impact on the lateral displacement of the reinforced soil retaining wall,and the parameters of the foundation soil and the backfill soil also have a significant contribution to the lateral displacement.The appropriate design value and the backfill soil should be selected according to the specific construction situation;In addition,the internal force of the reinforcement at the bottom of the retaining wall behind the natural angle of repose is close to 0,and the closer the reinforced area is to the bottom,the greater its elastic modulus is.Therefore,the panel displacement caused by reinforcement strain can be estimated without considering the reinforcement strain within the natural angle of repose.Since the modulus of the bottom soil layer is much larger than that of the top layer,it is more reasonable to consider the variation of the reinforced soil modulus with height when estimating the overall displacement.关键词
加筋土挡墙/侧向位移/数值模拟/土工合成材料Key words
Reinforced soil retaining wall/Lateral displacement/Numerical simulation/Geosynthetics分类
建筑与水利引用本文复制引用
罗瑞鹏,黄明艳,刘金华,肖豪,汪磊..返包式加筋土挡墙侧向位移影响因素分析[J].化工矿产地质,2024,46(1):82-88,7.基金项目
江西省教育厅科学技术研究项目 考虑砂土非线性与剪胀性本构的加筋土挡墙数值分析方法(编号:GJJ200865)、高层次人才科研启动项目 正常工况下考虑面板倾角的加筋土挡墙筋材内力分析方法(编号:jxncbs19002) （编号:GJJ200865）
