左江山秀船闸改扩建工程引航道通航水流条件

Navigation flow conditions in approach channel of reconstruction and extension project for Shanxiu ship lock located in the Zuojiang River

对于通航水流条件而言,在急弯河段上修建船闸改扩建工程面临诸多难题。依托广西左江山秀船闸改扩建工程,建立该河段整体二维水流数学模型,分析对比各方案引航道通航水流条件。结果表明:采取合理的凸岸开挖、凹岸潜坝和分水隔墙布置等综合措施可有效改善通航水流条件。

For the navigation flow conditions,there are many challenges to be faced in a ship lock reconstruction and expansion project at a sharp-bended river reach.In case of the reconstruction and extension project for Shanxiu lock on the Zuojiang River in Guangxi province,flow conditions in the approach channels of various design schemes are analyzed and compared by using the two-dimensional flow mathematical model.The results show that comprehensive measures such as reasonable excavation for the convex bank,and layout of concave bank submerged dam and guidance wall can effectively improve the navigable water flow conditions.