纤维泡沫轻质土在软土地区路基工程中的应用  

APPLICATION OF FIBER FOAMED LIGHT SOIL IN SUBGRADE ENGINEERING IN SOFT SOIL AREA

作　　者：符仁建 杨云朋 冯陆军 江可彬 Fu Ren-jian;Yang Yun-peng;Feng Lu-jun;Jiang Ke-bin

机构地区：[1]南通理工学院建筑工程学院,江苏南通226000

出　　处：《建筑技术开发》2023年第9期166-169,共4页Building Technology Development

基　　金：南通市基础科学研究指令性项目(JC2021174)。

摘　　要：为有效解决滨海软土路基下沉以及不均匀沉降的问题,采用EPS颗粒作为轻质材料混合现场土料制成具有一定强度的轻质土作为路基填土,并掺入聚丙烯纤维用来改善EPS轻质土松散破坏的特点。以某滨海地区路基工程为例,采用ABAQUS有限元软件对纤维EPS轻质填土路基与普通填土路基进行对比分析,发现纤维EPS轻质填土路基整体沉降明显小于普通填土路基,其最大沉降值和回弹值相比普通填土减少40.1%和41.3%,路基边坡坡脚水平位移相比普通填土减少36.4%。In order to effectively solve the problem of subgrade subsidence and uneven settlement in coastal soft soil,EPS particles are used as light material to mix with site soil to make light soil with certain strength as subgrade fill,and polypropylene fiber is filled to improve the loose failure characteristics of EPS light soil.Taking subgrade engineering in a coastal area as an example,Abaqus finite element software was used to compare the fiber EPS lightweight filling subgrade with ordinary filling subgrade.It was found that the overall settlement of fiber EPS lightweight filling subgrade was obviously less than that of ordinary filling subgrade,and its maximum settlement and rebound value were reduced by 40.1%and 41.3%compared with ordinary filling subgrade,and the horizontal displacement of subgrade slope foot was reduced by 36.4%compared with ordinary filling subgrade.

关 键 词：EPS颗粒 聚丙烯纤维 路基填土 ABAQUS 

分 类 号：U416[交通运输工程—道路与铁道工程]