复式节制闸在联接段7#隧洞弃水控制中的应用

Application of Multiple Control Gate in Controlling Waste Water of Tunnel NO.1 of “Connection Works”,the South Main Line,Wanjiazhai YRDP (Yellow River Diversion Project)

万家寨引黄工程联接段上段43.5km为有压管道输水,而长13.5km的7#隧洞为明流输水,当7#隧洞下游呼延水处理厂发生紧急事故时,有很大一部分弃水会排泄,为了减少弃水损失,本文介绍了7#隧洞出口的复式节制闸的调蓄弃水量的设计方案。

A multiple Control gate,which is located in outlet of tunnel NO.1 of “connection works”,the south main line,Wanjiazhai YRDP,and is used as a facility to store the water that would originally be released as waste water in the tunnel NO.7,when emergency had happened in Huyan water treatment plant downstream of the tunnel NO.7 is introduced conerning its design in this paper.Preliminary operation done on October 8,2002 shows that the mutiple control gate has better effect to reduce the waste water.