基于渐近均匀化理论的加筋土路基在交通荷载作用下的动力响应分析

通过渐近均匀化方法将加筋土路基等效成单一弹性参数的材料,再利用An-sys建立加筋土路基的三维有限元模型.用移动恒载来模拟交通荷载,研究加筋土路基在该荷载作用下的动力响应.具体研究了不同代表测点的等效Mises应力、竖向位移、竖向加速度的时程曲线变化规律,以及随着单轮轮载值、行车速度、距路基表面深度改变而变化的规律.

The Collapse Incident Analysis and Control Techniques on Slope in Xiangtan City

Through the symptotic homogenization method,make geogrid-reinforced roadbed equivalent to the material with a single elastic parameters.Using Ansys to establish geogrid-reinforced roadbed of three dimension finite element model.Use mobile constant load simulate traffic load,when role traffic load research the dynamic response of geogrid-reinforced roadbed.Research the schedule curve change rule of different points Mises equivalent stress,vertical displacement,vertical acceleration,and with the single round wheel load value,driving speed,depth from the roadbed surface change,the law change of dynamic response.