水泥混凝土路面低路堤变结构刚度有限元模拟

The finite element simulation of variable structure rigidity of low embankment on cement concrete pavement

针对低路堤在交通荷载作用下,传到土基的应力较大,引发路面不均匀沉降增大和低路堤土基固结沉降增加的问题,分析交通荷载传递到路堤顶部的应力情况;再以变刚度调平思想为指导,根据等体积原则,利用碎石改变路堤结构,运用ABAQUS计算程序,模拟计算不同结构刚度下的土基应力应变特性,找出最优方案,为软土低路堤的优化设计提供了一种有效可行的实用技术手段.

Aiming at the increase of the stress of the embankment under the action of the traffic load, the increase of the uneven settlement of the road surface and the increase of the settlement of the embankment foundation are analyzed, and the stress of the traffic load to the top of the embankment is analyzed. And the ABAQUS calculation program is used to simulate the stress and strain characteristics of soil under different structural stiffness, and the optimal scheme is found, which gives references for the optimized design of the low embankment of the soft soil.