Abstract: To improve the design of pavement surface drainage , this paper puts forward a new method of hydraulic calculation for pavement .On the basis of the conservation of mass , the paper utilizes the Chezy-Mannings theory to analyze the current on the pavement surface and brings forward a few new formulas .The new method is valuable and flexible in practice

Key words: pavement surface drainage , time of concentration , dike , drain entrance

摘要： 为了提高路面集中排水水力计算的精度，笔者通过理论推导，从质量守恒出发，利用谢才—曼宁公式，采 用微分法提出了一个计算暴雨时路面集中排水的水力计算方法，经比较这一方法使用方便，精度满足工程需要。

关键词: 路面排水, 汇流时间, 拦水带, 泄水口