长沙理工大学学报（自然科学版）2017，Vol.14Issue(2)：7-13,74,8.
泡沫轻质土填筑软土地基沉降分析及控制
Sedimentation analysis and control of soft soil foundation filled with foamed light soil
摘要
Abstract
In order to solve the problem of uneven settlement of the soft soil foundation,and to make the foam lightweight soil more widely used in embankment filling,the model in ANSYS finite element software is established,which can help the theoretical analysis of the embankment with different heights,density and elastic modulus of foamed light soil.Results show that the elastic modulus of soft soil layer have the most effect on the settlement of subgrade,and the change of cohesion has little influence on the settlement of subgrade.Compared with the common subgrade,the foam lightweight soil roadbed can largely reduce the subgrade settlement.The increase settlement of the embankmentinfluence by the increase of the height of the embankment,the decrease of the elastic modulus and the increase of the density.Meanwhile,it is found that the roadbed is prone to be unstable when the density of the foamed light soil is over 11 kg/m3,and the height of the embankment is over or equal to 12 m.关键词
泡沫轻质土路堤/路堤填筑/路基沉降/路堤高度/密度/弹性模量Key words
foamed light soil embankment/embankment filling/subgrade settlement/embankment height/density/elastic modulus分类
交通工程引用本文复制引用
曾勇,刘勇,石苏意,关宏信..泡沫轻质土填筑软土地基沉降分析及控制[J].长沙理工大学学报（自然科学版）,2017,14(2):7-13,74,8.基金项目
湖南省自然科学基金资助项目(13JJ3070) （13JJ3070）
内蒙古自治区交通运输厅建设科技项目(NJ-2015-35) （NJ-2015-35）
