Abstract: Chengbeizun shoal lies in Luzhou-Chongqing Reach upstream Yangzi river, near Mituo town of Luxian county. It is a well-known curve and shallow dangerous shoal, adjacent to a sharp bend with a radius 220m upstream tightly. The ship model experiment on Chengbeizun Reach in Yangzi River shoal regulation is introduced, it shows both the scheme of 80 and 60 m channel width can be true of navigation by 1000t ship teams. The velocity in channel 80m width is faster slightly than channel 60m width, so sh

Key words: chengbeizun in Yangzi river, ship model experiment, channel regulation

摘要： 城背嘴滩位于长江上游泸渝河段泸县弥沱镇附近。该滩上段紧接一半径仅220m的急弯，是泸渝段著名 的弯、浅险滩。本文介绍的长江城背咀河段滩险整治船模通航试验表明，80m航漕方案与60m航漕方案均可满 足IO00t级船队通航要求，但各有优缺点。80m航漕方案航漕流速稍高于60m航漕方案，因而船队上行航速略 低；但从冲淤的角度米讲，80m航漕方案略优。船模试验还对船队的航线和驾驶方式等提出了意见。船模试验 为该滩整治提IJ{了有价值的成果

关键词: 长江城背嘴, 船模试验, 航道整治