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《Journal of Yangtze River Scientific Research Institute》 2009-12
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Prototype Observation on Roughness of Main Channel of Taohe River Water Transfer First-phase Project(1)——Research Method and Monitoring of Water-level and Discharge

L Hong-xing 1,YANG Cen 1,LU Ze-sheng 2,LUAN Wei-gong 2,BA Duo-duo 1,LI Jian-xiong 2 (1.College of Water Resources and Architectural Engineering,Northwest Sci-tech University of Agriculture and Forestry,Yangling 712100,China;2.Taohe River Water Transfer Project Water Resources and Hydropower Development Co.Ltd of Gansu Province,Lanzhou 730030,China)  
The roughness of a large water transfer project is one of the important parameters at engineering design stage.With the development of construction technology,measured roughness values are lower than regulation values in specification.But there is no reliable basis to reduce the roughness values.In order to provide the basis for the Taohe River Water Transfer Project,the Water Resources and Hydropower Development Co.Ltd of Gansu Province established an item to conduct the prototype observation research in 2006,which was selected at main channel and east secondary channel of the Dahe River Water Transfer Project constructed in 1995.The discharge of tunnels was monitored automatically by the swing-shape flumes which were built at the outlet of 30A Tunnel and the entrance of Pandaoling Tunnel respectively,and the water level was observed simultaneously through 6 survey sections.The observations were manually carried out at the 2 open channels.This is the first part of the research.
【Fund】: 国家自然科学基金(50879070);; 甘肃省引洮水利水电开发有限责任公司立项资助
【CateGory Index】: TV131.65
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