高填方加筋路堤稳定性影响因素分析  

Analysis on Influencing Factors of the Stability of High Fill Reinforced Embankment

作　　者：吴治国 Wu Zhiguo(Yuncheng Expressway Branch of Shanxi Transportation Holdings Group Co.,Ltd.,Yuncheng 044000,China)

机构地区：[1]山西交通控股集团有限公司运城高速公路分公司,运城市044000

出　　处：《北方交通》2024年第11期27-30,共4页Northern Communications

摘　　要：为合理确定高填方加筋路堤施工方案,采用有限元软件进行数值模拟分析。通过建模,计算不同因素对路堤稳定性的影响,认为在加筋层数为7~8层时路基中心位置沉降量最小,安全系数最大;在距离路堤顶面7m左右布置土工格栅得到最大拉力,安全系数最高;竖向间距越小,路堤中心位置沉降越小,路堤稳定性越好,安全系数最高。In order to reasonably determine the construction scheme of high fill reinforced embankment,the numerical simulation analysis is made by using the finite element software.Through modeling,the influence of different factors on the stability of the embankment is calculated.It is believed that the settlement at the center of the subgrade is the smallest and the safety factor is the largest when the number of the reinforcement layer is 7-8.The maximum tensile force is obtained when arranging the geogrid at a distance of about 7m from the embankment top,and the safety factor is the highest.The smaller the vertical spacing,the smaller the settlement at the center of the embankment,and the better the stability of the embankment.The safety factor is the highest.

关 键 词：高填方加筋路堤 稳定性 影响因素 加筋位置 竖向间距 

分 类 号：U416.12[交通运输工程—道路与铁道工程]