急弯河段通航水流条件与航道宽度关系研究  

Study on relationship between navigation flow conditions and channel width in sharp bend reach

作　　者：王常红[1] 何文辉[2] 程小兵[1] 李旺生[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 [2]中国交通建设股份有限公司,北京100088

出　　处：《水道港口》2014年第4期353-357,共5页Journal of Waterway and Harbor

基　　金：交通运输建设科技项目(2011 328 000 1520)

摘　　要：急弯河段水流流态复杂,船舶过弯所需的航道宽度要远大于直线段航道宽度,也大于一般的弯区河段航道宽度。根据汉江下游马口滩急弯河段船模航行试验成果,总结分析了船舶在弯道段航行时占用的航宽与水流的关系,表明船舶以大致相同的航速上、下航行通过弯道时,上行时占用的航宽比下行时要小的多。流速或流向角越大,船舶的航迹带宽度越大,占用的航宽也越大。在此基础上建立了马口滩急弯河段航宽计算公式。The water flow regime of sharp bend reach is complicated. The width of channel for ship crossing the bend reach is much greater than the line width of channel and the general bending section of the river channel width. According to the ship model test results of Makou reach in the lower reaches of Hanjiang River, the relationship between channel width for ship crossing the bend reach and flow were summarized. The results indicate that the navigation width for ship sailing upward through the bend is much smaller than sailing downward with the same speed. The ship track width and the channel width increase with the increasing of velocity and flow angle. On this basis, width calculation formula of Makou sharp bend reach was built.

关 键 词：弯道河段 通航水流条件 船模试验 航迹带宽度 附加航宽 

分 类 号：U641[交通运输工程—船舶及航道工程] TV131.6[交通运输工程—船舶与海洋工程]