Abstract: The Xialong shoal, which lies in the upstream of the Hongshui River, is one of the important shoals with the curve and shallow characteristic . Combining with the model test result on waterway regulation for the Xialong shoal, the properties and the ahoal and the conditions of the constructing waterway is analysed in this paper. By adopting such engineering measiues as dredging, cutting the snout of the shoal and exp1oring the reef, the navigation channel is normalized, the navigation depth is increased , the gradient ratio is reduced , and the flow condition is improved.Then the problems obstructing the waterway have been effectively solved. The favourable waterway conditions have been provided for the s1ipping to safely sail.

Key words: Xiaolong shoal, channel regulation, model test

摘要： 峡龙滩为红水河上游集急、弯、险、浅于一体的重点碍航滩险之一.结合峡龙滩航道整治模型试验研究成果,分析了该滩的滩险特性、成滩原因、碍航情况.通过采用疏浚、 切嘴和炸礁等整治工程措施,调顺航槽、增加航深、减缓流速、比降,有效地解决了峡龙滩急、弯、浅的碍航状况,为船只安全航行提供了良好的航道条件.

关键词: 峡龙滩, 航道整治, 模型试验