土工格栅加筋陡坡路堤的有限元分析  

Finite Element Analysis(FEA) of Geogrid Reinforced Steep Slope Embankment

作　　者：肖文 赖思静[2] 杨建国[2] 

机构地区：[1]重庆高等级公路建设投资有限公司,重庆401147 [2]重庆交通科研设计院,重庆400067

出　　处：《公路交通技术》2006年第5期29-34,共6页Technology of Highway and Transport

摘　　要：采用Plaxis程序建立了土工格栅加筋陡坡路堤的有限元分析模型,利用该模型对陡坡路堤边坡坡比、路堤高度、筋带间距及筋带参数等因素对陡坡路堤稳定性的影响机理进行了研究,并对加筋陡坡路堤的极限承载力进行了数值分析。分析结果表明,土工格栅加筋陡坡路堤不但能降低路堤的总竖向沉降量,减小路堤的侧向位移,确保陡坡路堤稳定性,还能显著提高路堤的承载力。This paper adopts Plaxis program to setup FEA model for geogrid reinfrorced steep slope embankment, with this model, researches are given on influence to stability of steep slope embankment by factors such as slope ratio of steep slope embankment, embankment height, reinforcement clearance, etc.. The paper gives numerical analysis to ultimate bearing capacity of reinforced steep slope embankment. The result of analysis shows the geogrid reinforced steep slope embankment may not only reduce total vertical settlement of embankment, reduce lateral displacement of embankment, but also obviously improve the bearing capability of embankment.

关 键 词：土工格栅 有限元 数值分析 稳定性 承载力 

分 类 号：U416.12[交通运输工程—道路与铁道工程]