拓宽路堤变形性状的非线性有限元分析  

The Nonlinear Finite-element Analysis of the Deformation Behavior in Embankment Widening

作　　者：李学芳[1] 梅神兵 

机构地区：[1]天津市建筑工程职工大学,天津市300074 [2]天津市医药设计院,天津市300040

出　　处：《天津职业院校联合学报》2011年第2期71-74,81,共5页Journal of Tianjin Vocational Institutes

摘　　要：公路拓宽会引起老路路堤的不均匀沉降、路面裂缝等病害。对于拓宽路堤的变形,国内外研究度还不够,针对研究中不足本文采用PLAXIS商用有限元软件对不同工况下拓宽路堤进行了非线性有限元分析,得出拓宽路堤的变形规律。分析结果表明:拓宽路堤的自重荷载会使老路堤产生较大的竖向位移和水平位移。When widening roads,differential settlement and pavement cracks often appear.However,researches on the deformation behavior in embankment widening projects are far from satisfactory both at home and abroad.Under this circumstance,the paper proposes using nonlinear finite-element to analyze the deformation behavior in widening projects,and obtains rules of this deformation.

关 键 词：拓宽路堤 非线性有限元分析 变形 附加沉降 水平位移 

分 类 号：O29[理学—应用数学]