摘要
针对航路改革后的长江安徽段上行大船航迹线如何重新规划问题,以实船试验为依托,测算出船在不同水深点上的速度;比较船在缓流中的速度增加率与船在浅水中的速度减小率的乘积。结果显示:船舶当处在相对水深为2.15的点上时,乘积最大,无岸壁效应,并通常能满足分隔效果,故应将此点作为安全与经济船位,此类船位的连线即为安全与经济航迹线。
For upward large ship＇s track plan of the Yangtze River in Anhui section after route reforms, based on ship＇s experiment, surveyed and calculated ship＇s speed of various depth point, this article compared various product of rate of the speed increase in secondary flow and rate of speed decrease in shallow waters. The result indicates that if a ship is at the point of relative depth 2.15, there is maximum product and isn＇t effect in quay-wall, and there is usually separate effect, so we should regard the depth point as safe and economic ship＇s position, and its＇ line is safe and economic track.
出处
《交通科技》
2008年第5期98-101,共4页
Transportation Science & Technology
关键词
上行大船
航迹线
分隔效果
浅区效应
岸壁效应
upward large ship
track
separate effeet
effect in shallow waters
effect in quay-wall
