人民黄河2016，Vol.38Issue(9)：96-98,3.DOI:10.3969/j.issn.1000-1379.2016.09.024
南水北调沁河倒虹吸动床河工模型试验研究
Experimental Study of Movable Bed Model on the Inverted Siphon of Qinhe River of South to North Water Diversion Project
摘要
Abstract
Qinhe River inverted siphon is one of the important control engineering works in South to North Water Diversion Middle Route Project. Qinhe River is a wandering stream and is known as a little Yellow River. The thickness of fine sand in Qinhe riverbed is 13-20 m. It is very difficult to determine the depth of scour and the depth of inverted siphon, which directly determine the engineering safety, investment, flood control safety and other important issues, and so experimental study of movable bed model on the inverted siphon is very necessary. The test model was designed to simulate the prototype of water and sediment movement and river bed deformation of the model similarity theory, the sand of model must be able to meet the requirement of the evolution law of wandering of Qinhe River and could adapt to the needs of the running of the continuous scouring test and coke sand. The test used 3 kinds of working conditions to check the evolution law and scour depth of flood, less sediment concentration flood and channel forming discharge. Test results find out that the law of main stream, the maximum scour depth of the river under the flood is 11.54 m and the local maximum scour depth is 13.15 m.关键词
动床/河工模型/冲刷深度/倒虹吸/沁河/南水北调工程Key words
movable bed/river model/scour depth/inverted siphon/Qinhe River/South to North Water Diversion Project分类
建筑与水利引用本文复制引用
管巧艳,张先忠,李庆亮,杜昕鹏..南水北调沁河倒虹吸动床河工模型试验研究[J].人民黄河,2016,38(9):96-98,3.基金项目
“十二五”国家科技支撑计划课题（2015BAB07B07）。 （）
