城市透水式雨水管道的试验研究

通过带孔眼的透水式雨水管道实验，对单位管长的自由稳定渗水量与各影响因素间的关系进行了探讨，给出了管道不同开孔条件下，单位管长的稳渗量公式，以及判别管道开孔情况的临界面积公式。试验结果表明，透水式雨水管道对减小管道的流量负荷，补充地下水源有显著效果，具有很大的经济效益，环境效益和社会效益。

Experiment Study of city Perforated Rain Water Drainage Pipe

Relationship among free steady fiow rate of unit length infiltration water and other influential elements was studied through experiments of perforated rain water drainage pipes.Two equations of steady fiow rate of unit length infiltration water under different perforating conditions was deduced.A critical perforated area formula is also presented determin in the situation of the perforated rainywater pipe .The experiments show that the perforated rain water pipe can reduce fiow rate in rain water drainage pipes,and replenish underground water remarkably.This system will bring us more economic environment and social benefit.