基于ABAQUS的高填方边坡沉降数值模拟分析  

Numerical simulation analysis of high fill slope settlement based on ABAQUS

作　　者：朱美宣 ZHU Meixuan(Shanghai Pudong New Area Construction(Group)Co.,Ltd.,Shanghai 201206,China)

机构地区：[1]上海市浦东新区建设(集团)有限公司,上海201206

出　　处：《智能计算机与应用》2025年第3期106-113,共8页Intelligent Computer and Applications

摘　　要：针对国内机场高填方边坡工程沉降问题,选取某新建机场高填方边坡工程作为研究对象,利用ABAQUS有限元计算软件,基于生死单元法、岩土体本构关系、土体固结理论及现场监测试验,构建并验证了高填方边坡沉降数值分析模型。研究结果表明:对于分级填筑的高填方边坡,最大沉降量并不是发生在填土层表面,而是在回填土体中部;随着时间的推进,边坡顶面工后沉降逐渐趋于一条平滑的曲线;随着顶面计算点距坡顶距离越来越远,工后沉降值越来越大;随着马道级别越来越高,马道计算点沉降值越来越大;随着地基表面计算点距离坡脚越远,地基表面隆起值越小。Aiming at the settlement problem of high fill slope engineering in China's airport,a high fill slope engineering of a new airport is selected as the research object.Using ABAQUS finite element calculation software,based on the birth and death element method,the constitutive relationship of rock and soil,the consolidation theory of soil and the field monitoring test,the numerical analysis model of high fill slope settlement is constructed and verified.The calculation results of the model show that for the high fill slope with graded filling,the maximum settlement does not occur on the surface of the fill soil,but in the middle of the backfill soil.With the advancement of time,the post-construction settlement of the top surface of the slope gradually tends to a smooth curve;as the distance between the top surface calculation point and the top of the slope becomes farther and farther,the postconstruction settlement value becomes larger and larger;as the level of the horse road is getting higher and higher,the settlement value of the horse road calculation point is getting larger and larger;as the calculation point of the foundation surface is farther away from the foot of the slope,the uplift value of the foundation surface is smaller.

关 键 词：机场工程 高填方边坡 数值模拟 生死单元 沉降分析 

分 类 号：U416[交通运输工程—道路与铁道工程]