采用贫混凝土基层的水泥混凝土路面厚度优化

Thickness Optimization of Portland Concrete Pavement with Lean Concrete Base

采用贫混凝土基层的水泥混凝土路面是解决重载交通的一种理想路面形式。贫混凝土基层与水泥混凝土面层的不同厚度组合会对路面荷载应力产生较大的影响,考虑实际路面的各种要求,提出了厚度优化的数学模型。利用三维有限元模型,根据在不同结构形式下的合理目标函数,分析了最佳的厚度组合比。

The portland concrete pavement with lean concrete base is an ideal way to solve the heavy-load problem. Different thickness combinations of lean concrete base and portland concrete pavement will greatly influence load stress in pavement. Based on all kinds of requests in real pavement, a mathematic model of thickness optimizing is put forward. Utilizing three-dimension finite element model, optimal thickness combination ratio is analyzed according to rational object function of different structures.