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北汝河倒虹吸是南水北调中线工程沙河南-黄河南渠段上大型的河渠交叉建筑物,全长1282m,在河渠交叉建筑物设计中具有一定的代表性。文章结合工程概况、水文地质条件,从建筑物的轴线选择、河渠交叉型式选择及长度选择、管身埋深选择、倒虹吸管型式选择、孔数选择等方面,详细阐述了河渠交叉建筑物总体布置方案,同时总结了渠道倒虹吸工程布置设计的基本思路。
The North Ruhe inverted siphon is a large-scale river crossing structure on the middle section of the South-to-North Water Diversion Project from Shahe Nan to the Yellow River. It has a total length of 1282m and has certain representativeness in the design of river crossing buildings. Combined with the general situation of engineering and hydrogeological conditions, this paper elaborates the general arrangement of crossings of river channels in terms of the axis selection of buildings, the selection of crossings and length of river channels, the choice of pipe body depth, the choice of inverted siphon type and the selection of the number of holes. Program, at the same time summed up the channel inverted siphon engineering layout design of the basic ideas.