铁道科学与工程学报2018，Vol.15Issue(2)：361-368,8.
车辆荷载下黄土参数对路堤沉降变形的影响
Influence of parameters of loss soils on embankment settlement under vehicle loads
摘要
Abstract
According to the size and form of vehicle loads, the settlement law of embankment under different dynamic parameters was analyzed using ABAQUS. The influence of embankment dynamic parameters and over-load condition to the embankment settlement were obtained. The results show that the influence level of dynamic parameters on embankment settlement is: elastic modulus, Poisson ratio and damping ratio. Among these strength parameters, the embankment settlement is insensitive to the internal friction angle, while it is sensitive to the cohesion. Under the over-load condition, the embankment settlement increases linearly with the increase in vehicle loads. In the condition of long-time vehicle load, the effect of density on embankment settlement is the most sensitive, followed by moisture content, while relevant influence of confining pressure on the embankment settlement deformation is small.关键词
道路工程/黄土路堤/车辆荷载/数值模拟/沉降变形Key words
road engineering/loess embankment/vehicle load/numerical simulation/settlement and deformation分类
建筑与水利引用本文复制引用
李又云,张玉伟,李恒,李哲..车辆荷载下黄土参数对路堤沉降变形的影响[J].铁道科学与工程学报,2018,15(2):361-368,8.基金项目
西部交通建设科技资助项目(2013318 J01100) （2013318 J01100）
