西小屯沟左岸排水倒虹吸工程布置及方案比选

Project Layout and Scheme Selection of Inverted Siphon Structure for Drainage on the Left Bank of Xixiaotun Valley

西小屯沟排水倒虹吸位于河北省邯郸市西小屯村约400m处,是穿越南水北调中线总干渠的左岸排水建筑物之一。文中通过结合西小屯沟的实际情况,对倒虹吸的布置形式,提出了三种方案进行比较。由于方案三在工程总体布置以及进、出口水流条件等方面都优于其他两个方案,故将此方案确定为最终方案。

Xixiaotungou inverted siphon project for drainage is located in such a position, which is 400 m away from Xixiaotun Village. It is one of the drainage structures on the left band, that underneath passes the main canal of Middle Line of South-to-north Water Transfers Project. Combining practical situation of Xixiatun valley, this paper presents three alternative Schemes for layout of inverted siphon structure. Because the No.3 scheme is better than the another schemes in general layout of project and in inflow and outflow conditions, so that the No.3 scheme is selected as the determined scheme.