0引言北槽深水航道是进出上海港及长江的水上咽喉要地,随着船舶趋向大型化,进出北槽船舶的航行风险与日俱增,尤其在北槽导堤口门附近时有重载船舶因流压异常导致突然偏向或无法保向,近乎失控,船舶存在被迫掉头、触碰灯浮、冲出航道搁浅、碰撞他船等风险。2016年夏季曾发生十多起类似险情, 0 Introduction The North Channel deep-water channel is the water throat to and from Shanghai Port and the Yangtze River. As vessels tend to be large-scale, the risks of sailing into and out of the North Channel are increasing, especially in the vicinity of the North Channel Abnormal pressure led to a sudden bias or can not be Paul, almost out of control, the ship was forced to turn around, touch the light floating out of the channel ran aground, collision risk. More than a dozen similar dangerous situations occurred in the summer of 2016,