摘要
Abstract
In order to determine channel regulation engineering proposal of Shuangxuangou rapids,which is the most serious navigation⁃obstructing hazardous rapids and shoal reach between Longwan and Nanchangtan in the upstream of the Yellow River,the fixed bed river model test was carried out. In this paper,the hydraulic elements of the rapids were studied by flow test,and the stability of dredged channel was analyzed by sediment transport test. The test result shows that the regulation measures such as dredging the shallow zone,cutting the protrusive rock,fill⁃ing the deep bay,building the submerged dike in deep trough and spur dike in broadened section can reduce flow velocity and water surface gradient,improve flow state and increase channel width. After regulation,the channel condition of the rapids reach can meet the grade V navigation standard,and the hydraulic elements of the rapids reach can meet the needs of ship passing through rapids.关键词
航道整治/浅滩/模型试验/双旋沟滩Key words
channel regulation/shoal/model test/Shuangxuangou rapids分类
交通工程
