城市路面排水设计计算

为迅速排除路面径流、保证路基稳定、延长路面使用年限、维持车辆正常交通及行人安全,需要合理进行路面排水设计。结合设计暴雨重现期和允许路面最大排水宽度(允许扩展)的概念,可以分为汇水流域地表漫流、道路边沟流和雨水口进流的计算,进而可以确定雨水口的设置间距。该文首先阐述了地表漫流的流量、道路边沟流量和雨水口截流能力的计算方法,然后利用算例说明了连续坡面上雨水口间距设置的计算步骤。

Design and Calculation of Urban Pavement Drainage

In order to remove the pavement runoff quickly, to guarantee the roadbed stability, to lengthen the pavement service life and to maintain the normal traffic of vehicles and the safety of pedestrians, it is required reasonably to carry out the design of pavement drainage. Combined with the conception of designing the reappearing period of rainstorm and permitting the maximum drainage width of pavement (to permit extension), the calculation can be divided into the surface overflow of catchment basin, the flow...