土工格栅对加宽路堤边坡稳定性能影响有限元分析  

FEM Analysis of Geogrid′s Effect for Slope Widening Stability

作　　者：吕鹏[1] 黄俊 宋瑞刚 杨广庆[1] 

机构地区：[1]石家庄铁道学院土木分院,河北石家庄050043 [2]中交公路规划设计研究院,北京100010

出　　处：《交通标准化》2006年第11期157-159,共3页Communications Standardization

摘　　要：当路堤进行加宽改造时,多采用土工格栅以增强路堤边坡的安全稳定性。基于有限元理论的强度折减系数法,从加筋刚度、加筋长度、加筋布置方式、筋土界面作用四个方面考虑,有助于有效地分析土工格栅对路堤加宽各阶段安全稳定性的影响。Geogrid is always used to improve the safety and stability of slope when road base is widened. Strength reduction method based on finite element theory can be used to analyze the effect of safety and stability for each phase of slope widening from four aspects of geogrid, such as stiffness,length, layout manner and soil-structure interaction.

关 键 词：土工格栅 FEM 强度折减系数法 路堤加宽 安全性能 加宽路堤 稳定性能 有限元分析 

分 类 号：U416.12[交通运输工程—道路与铁道工程]