基于ABAQUS的加筋EPS轻质土路基研究  

Study on reinforced EPS light soil subgrade based on ABAQUS

作　　者：杨云朋 符仁建 冯陆军 江可彬 Yang Yunpeng;Fu Renjian;Feng Lujun;Jiang Kebin(Architecture and Civil Engineering,Nantong Institute of Technology,Nantong 226000,China)

机构地区：[1]南通理工学院建筑工程学院,江苏南通226000

出　　处：《山西建筑》2023年第5期88-90,94,共4页Shanxi Architecture

基　　金：南通理工学院优秀本科毕业设计(论文)培育计划(BS202213);南通市基础科学研究指令性项目(JC2021174)。

摘　　要：为有效地解决软土地区路基变形过大的问题,采用EPS轻质土作为轻质填料来减轻上覆土自重并通过铺设土工格栅对路基土进行加筋强化。通过ABAQUS有限元软件模拟分析了普通填土路基、EPS轻质土路基、加筋土路基和加筋EPS轻质土路基的竖直沉降和水平位移的变化规律,结果表明:EPS轻质土有效地降低了路基的竖直沉降和水平位移;加筋土对路基填土的水平位移约束十分显著;加筋EPS轻质土路基充分利用了EPS轻质土自重轻的特点以及加筋对土体水平方向变形的约束作用,优化效果显著。In order to effectively solve the problem of excessive deformation of subgrade in soft soil area, EPS light soil is used as light filler to reduce the dead weight of overlying soil, and geogrid is laid to reinforce subgrade soil. Based on ABAQUS finite element software, the vertical settlement and horizontal displacement of common fill subgrade, EPS light soil subgrade, reinforced soil subgrade and reinforced EPS light soil subgrade were analyzed. The results showed that EPS lightweight soil can effectively reduce the vertical settlement and horizontal displacement of subgrade. Reinforced soil restrains the horizontal displacement of embankment filled obviously. Reinforced EPS lightweight soil subgrade made full use of the light weight of EPS lightweight soil and the restraint effect of reinforcement on horizontal deformation of soil, significant optimization effect.

关 键 词：EPS轻质土 土工格栅 路基填土 ABAQUS 

分 类 号：U416[交通运输工程—道路与铁道工程]