右江航道鱼梁滩整治研究

文章针对右江鱼梁滩航道存在的问题,根据鱼梁滩滩段的特点,在对其滩性进行分析的基础上,提出鱼梁滩整治原则;通过建立水平比尺1∶80、垂直比尺1∶50航道物理模型,对2个设计整治方案和11个修改整治方案进行了试验。试验结果表明:采用修改方案11可使滩头比降得到调整,流态得到改善,航道纵向流速在整治流量以下,一般<1.9m/s,可基本满足滩头降水和航道流速的控制要求。

A Study on the Regulation of Yuliang Shoal in Youjiang Waterway

Focusing on the problems in Yuliang shoal,Youjiang river,the Paper,through analyzing the characters and property of Yuliang shoal,proposes the regulation principle for Yuliang shoal.By setting up a physical waterway model with the horizontal scale of 1:80 and the vertical scale of 1:50,experiments on the two design regulations schemes and 11 modified regulation schemes have been made.The experiment result shows that the modified scheme No.11 can regulate the gradient ratio of beach head and improve the flow status.The longitudinal flow rate of waterway can be adjusted to be lower than the regulated flow,normally less than 1.9m/s,which basically satisfy the control requirement for gradient ratio at beach head and the waterway flow rate.