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在浙江省“五水共治”大背景下,杭州市区大力推进截污纳管工作,在过去的几年中截污纳管工作取得了明显的成效。但是传统截流井在大雨期间均不能较好地控制进入截污管道的流量,且会对城市排涝产生较大影响。截流井的设计关系到整个截流式合流制排水系统运行的安全性、可靠性,有必要对污水截流方式及限流控制进行研究,以进一步提高排水系统运行的安全性、可靠性。
Under the backdrop of Zhejiang Province’s “Five Ways and Common Management”, Hangzhou Municipality has vigorously promoted the work of interception and sewer management, and the interception and sewerage management work has achieved remarkable results in the past few years. However, the conventional intercepting wells can not control the flow into the intercepting sewer well during heavy rains, and will have a significant impact on drainage in urban areas. The design of the intercepting well is related to the safety and reliability of the intercepted combined drainage system. It is necessary to study the intercepting method and the current limiting control to further improve the safety and reliability of the drainage system.