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前言南水北调中线总干渠在岸排水倒虹吸工程是总干渠与河流交叉工程的组成都分。《南水北调中线总干渠工程总体设计工作要求》规定:“凡河渠交叉工程积水面积大于20kmm~2的河流定为河渠交叉建筑物;凡河渠交叉处积水面积小于20kmm~2的河(沟)均作为左岸排水工程处理。”依据左岸积水区洪水都有出路,能并则并,尽量减少交叉建筑物座数,节省工程投资的原则,总干渠沙河南～漳河南458.9km渠段,共布置左岸
Foreword South-to-North Water Diversion Middle Route The main trunk inland drainage inverted siphon project is a component of the crossroads between the main trunk and the river. “The design requirements for the general design of the main canal of the Middle Route of South-to-North Water Diversion Project” stipulate: “All rivers with a water storage area larger than 20 kmm ~ 2 for cross-river projects shall be designated as river cross structures; rivers where the water storage area is less than 20 kmm ~ 2 ) Are treated as left bank drainage works. ”According to the left bank flood waters have a way out and can and then, to minimize the cross-building blocks, to save the principle of engineering investment, the main canal 458.9km Shahe Nan ~ Zhangnan South , A total layout of the left bank