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基于数值仿真的轻质土换填路堤变形特性研究

Research on Deformation Characteristics of Lightweight Soil Replacement Embankment Based on Numerical Simulation
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摘要 依托广连高速公路某区间段泡沫轻质土填筑工程,基于Midas/GTS软件建模探究了轻质土换填路堤与常规填土路堤的变形差异。并开展了轻质土容重以及轻质土路堤基底尺寸的参数影响性分析。研究表明:采用轻质土换填的方法能够大大降低路堤侧向位移与基底沉降,且变形量与轻质土容重、轻质土路堤基底尺寸成正比。因此工程中需合理设定轻质土容重与基底尺寸。 Relying on a foam light soil filling project in a section of Guanglian Expressway,based on Midas/GTS software modeling,the deformation difference between light soil replacement embankment and conventional embankment is deeply explored.And carry out the analysis of the influence of the parameters of the light soil bulk density and the light soil embankment bottom size.Research shows that the replacement method of lightweight soil can greatly reduce the lateral displacement of the embankment and the settlement of the foundation,and the deformation is directly proportional to the bulk density of the lightweight soil and the size of the foundation of the lightweight soil embankment.Therefore,the bulk density of the light soil and the size of the bottom should be set reasonably in the project.
作者 谢规球 薛国毛 郑中 李繁 XIE Guiqiu;XUE Guomao;ZHENG Zhong;LI Fan(China Communications Fourth Highway Engineering Bureau Co.,Ltd.Beijing 100022,China;School of Civil Engineering,Central South University Changsha 410075,China)
出处 《广东土木与建筑》 2022年第7期60-62,68,共4页 Guangdong Architecture Civil Engineering
基金 国家自然科学基金资助项目(50908234) 湖南省自然科学基金项目(2020JJ4743)。
关键词 轻质土换填 数值模型 侧向位移 基底沉降 变形参数 lightweight soil replacement numerical model lateral displacement,bottom settlement deformation parameters
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