土工格栅加筋路堤影响因素的数值模拟研究  

Numerical Simulation about Influence Factorsof Geogrid Reinforced Embankment

作　　者：孙旭 冯卫江 邓永锋[3] 

机构地区：[1]武汉市政工程设计研究院有限责任公司,湖北武汉430023 [2]中国水电顾问集团华东勘察设计研究院,浙江杭州310014 [3]东南大学交通学院岩土工程研究所,江苏南京210096

出　　处：《交通标准化》2013年第6期50-54,共5页Communications Standardization

摘　　要：采用FLAC对土工格栅加筋路堤不同铺设位置进行数值模拟,结果显示土工格栅加筋路堤铺设于底部效果最优,理论验证表明该模拟结果具备合理性。格栅材料、路堤材料、填土高度、过渡段模量比和格栅铺设范围是加筋土路堤的五个影响因素,对改善坡降差的效果有不同的影响。By using FLAC to numerically simulate different laying position of geogrid reinforced embank- ment, it is showed that the optimal result is to lay the geogrid reinforced embankment on the bottom, which has been proved reasonable by theoretical verification. Grid material, embankment material, filling height, transition section modulus ratio and grille laying range are the five influencing factors of reinforced embankment with dif- ferent gradient difference improvement effects.

关 键 词：土工格栅 加筋 路堤 模拟 

分 类 号：U416.12[交通运输工程—道路与铁道工程]