大粒径填石路基强夯加固模拟分析  

Simulation Analysis of Dynamic Compaction Reinforcement for Large Particle Size Stone-filled Roadbed

作　　者：段二兵 Duan Erbing(Shanxi Jintong Highway Engineering Supervision Co.,Ltd.,Jincheng 048000,China)

机构地区：[1]山西晋通公路工程监理有限公司,晋城市048000

出　　处：《北方交通》2023年第11期55-58,共4页Northern Communications

摘　　要：以某高速公路大粒径填石路基强夯处治为研究对象,利用颗粒流理论,根据设计资料和强夯加固方案,采用离散单元法建立分析模型,模拟路基强夯施工过程,对路基的强夯加固效果进行分析。根据数值模拟分析结果,得出强夯效果随强夯次数的增加而下降;随着夯击深度的增加,路基竖向位移逐步下降,强夯效果也随之下降;路基有效加固深度为7~8 m,满足设计要求。Taking the dynamic compaction treatment of the large particle size stone-filled roadbed of an expressway as the research object,the construction process of dynamic compaction of roadbed is simulated by using the particle flow theory,based on the design data and dynamic compaction reinforcement schemes,and using the discrete element method to establish the analysis model,and the dynamic compaction reinforcement effect of roadbed is analyzed.According to the numerical simulation analysis results,it is found that the dynamic compaction effect decreases with the increase of dynamic compaction times;as the compaction depth increases,the vertical displacement of the roadbed gradually decreases,and the dynamic compaction effect also decreases;the effective reinforcement depth of the roadbed is 7-8m,which meets the design requirement.

关 键 词：大粒径填石路基 强夯加固 模拟分析 竖向位移 有效加固深度 

分 类 号：U416.1[交通运输工程—道路与铁道工程]