西江界首至都城河段航道整治技术研究  

Study on channel regulation engineering plan of reach from Jieshou to Ducheng in Xijiang River

作　　者：王斐[1] 李君涛 王艳华[1] 闫涛[1] 

机构地区：[1]交通运输部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津300456

出　　处：《水道港口》2016年第1期61-66,共6页Journal of Waterway and Harbor

摘　　要：西江界首至都城河段水沙条件复杂,浅滩相连,礁石密布。随着航道等级的提升,部分滩段因水深不足而出浅碍航,或由于航槽内或航槽两侧分布有礁石,对船舶航行造成安全隐患。根据碍航特点,提出了疏浚、炸礁为主,筑坝为辅的整治原则,并针对不同滩段具体情况,提出了不同的整治方法。通过定动床物理模型试验,研究了不同方案工程前后沿程水位及航槽内流速变化。研究成果表明:推荐方案实施后,研究河段航槽稳定,航道水深满足设计水深要求。In the reach from Jieshou to Ducheng of the Xijiang River, the flow and sediment conditions are complex, the shallows are linked together and the rocks are densely covered. With the promotion of waterway classi- fication, the navigation-obstructing phenomenon appears in some shoal reaches due to insufficient depth. There are some safety hazards for ship navigation due to the distribution of rocks in channel or on both sides of channel. Based on the navigation-obstructing characteristic, the channel regulation principles mainly in dredging and rock blasting and secondly by damming were put forward. And according to the concrete condition of different shallow reaches, different channel regulation methods were proposed. By fixed and movable bed physical model test, the variations of the water level along the reach and the velocity in channel before and after different engineering plans were studied. The results show that the dredged channel will be stable and the water depth in channel will meet the demands of design depth after the recommended plan implementation.

关 键 词：航道整治技术 方案研究 物理模型试验 定床 动床 西江 

分 类 号：U617[交通运输工程—船舶及航道工程]