口岸直水道物理模型试验研究

Physical model study on Kou'anzhi waterway

通过对长江下游口岸直水道碍航特性及河床演变趋势预测分析,提出该水道航道整治思路,并在模型试验基础上提出航道整治工程推荐方案。推荐方案对改善落成洲左汊浅区段及鳗鱼沙河段左右两槽的航道条件效果较好,但经系列年试验后,三益桥边滩及高港边滩设计航道左边线附近航宽略有不足,需要配合一定的疏浚来达到设计航道尺度。

Based on the downstream Yangtze River, we analysis of the navigation obstruction and the tendency of channel change in put forward the regulation ideas and give the recommended channel regulation scheme according to the results of model experiments, which bears satisfactory effect in improving the channel condition of Luochenzhou left branch＇s shallow area and the channels in Manyusha reach, while the area near the left of Sanyiqiao and Gaogang shoals need dredging regulation because the necessary width is slightly smaller.