【摘要】 本文通过透水雨水管道模型试验,对渗透式雨水管道雨量入渗的主要影响因素进行了分析探讨,得到了判定管道开孔情况的临界面积公式,以及透水雨水管道在不同开孔条件下单位管长的雨水稳定渗透量计算公式。这些公式的建立为渗透式雨水排水系统的理论研究及设计奠定了基础。透水雨水管道的减流实测结果显示,透水雨水管道的减流百分比达到21%～39%。由此可见透水雨水管道对削减管道的流量负荷、补充涵养地下水源和保护自然水文环境效果显著。更多还原

【Abstract】 The main factors affecting the filtration characteristics of perforated rainwater drainage pipe are studied by means of model test.A critical perforated area formula that determines the situation of the perforated rainwater pipe is presented and two equations of steady flow rate of unit length infiltration water under different perforating conditions are established.The proposed formula lay a solid foundation for further research and design of the perforated drainage pipe system.The experiment results indicate that the pipe infiltration flow rate is 21%～39% of the flow-in capacity of the pipe,so that this system can reduce flow rate in the water drainage pipe and replenish groundwater and protect natural water environment.更多还原