长顺直河段边滩冲淤对新洲—九江河段航道的影响及治理

针对新洲—九江河段顺直段边滩频繁冲淤对航道的影响和治理问题,通过实测资料分析,探讨边滩冲淤与河段浅区航道条件之间的关系。结果表明河段浅滩航道条件与顺直段边滩冲淤有直接关系:边滩完整、位置偏上时,航道条件较好;反之,则较差。基于此提出增强滩体控制力度、限制沿岸槽发展、适当增加浅区冲刷的河段6 m航道治理思路和治理措施。

Influence of shoal scouring and siltation of long straight river reach from Xinzhou Jiujiang on waterway and its regulation

For the influence and treatment of the frequent scouring and siltation of the straight river reach from Xinzhou to Jiujiang on the navigation channel,we probe in to the relationship between the change of the shoal and the navigation conditions in the shallow section of the river based on the analysis of measured data.The results show that the shoal channel conditions of the river section relate directly to the scouring and siltation of the shoal:when the shoal is complete and the position is on the upper side,the navigation condition is better;otherwise,it is worse.On this basis,we put forward the regulation ideas and measures for improving the 6 m channel of the river section to enhance the control of the shoal body,limit the development of the coastal trough,and appropriately increase scouring in the shallow area.