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为有效削减地表径流的初期雨水和错接的污水对合肥高新区坝下河的影响,采用短管截流系统对河道两侧各分散出口进行截流,其设计重现期p=0.08年,截流井为跳跃堰式。结果表明,短管截流系统能够有效收集河道沿岸各分散排水口地表径流产生的初期雨水,完全截流旱季错接污水,从而有效减少地表径流初期雨水和错接的污水进入坝下河,减轻其对城市内河的污染。
In order to effectively reduce the impact of the initial rainwater of surface runoff and the wrongly connected sewage on the dam river in Hefei Hi-tech Zone, the short-pipe closure system was adopted to intercept the decentralized outlets on both sides of the river. The design recovery period was p = 0.08. For jumping weir. The results show that the short pipe closure system can effectively collect the initial rainwater produced by the surface runoff of the decentralized drainage outlets along the channel and completely cut off the wrongly connected sewage in the dry season so as to effectively reduce the initial rainwater and wrongly connected sewage entering the dam downstream of the surface runoff, Inland river pollution.