长江口12.5 m深水航道利用边坡交会对疏浚的影响

Influence of using slope encountering of the Yangtze Estuary 12.5-meter deep-water channel on dredging

长江口12.5 m深水航道有限的航道宽度与大型超宽船舶安全交会需求之间的矛盾已成为长江口深水航道通航迫切需要解决的主要矛盾之一。2018年12月1日起,长江口深水航道大型邮轮和大型集装箱船舶利用边坡交会由试运行转为常态化运行。在保障深水航道邮轮准点运营的前提下,研究利用边坡交会对深水维护疏浚的影响有着十分重要的意义。根据利用边坡交会的实测数据,就其对疏浚的实际影响开展分析,研究利用边坡交会条件下对航道疏浚的影响,并提出相应航道疏浚保障措施,可为今后利用边坡交会水平提高后带来的航道维护疏浚的影响和对策开展提供重要的技术支撑。

The contradiction between the limited channel width of the 12.5-meter deep-water channel in the Yangtze Estuary and the demand for safe rendezvous of large-scale super-wide ships has become one of the main contradictions that need to be solved urgently.Since December 1,2018,using the slope to encounter by large cruise ships and large container ships in the Yangtze Estuary deep-water channel has changed from trial operation to normal operation.On the premise of ensuring the on-time operation of cruise ships in the deep-water channel,it is of great significance to study the impact of using slope encountering on deep-water maintenance and dredging.According to the measured data of using slope encountering,this paper analyzes its actual influence on dredging,studies the influence of using slope encountering on waterway dredging,and puts forward corresponding measures to ensure waterway dredging,which can provide important technical support for the influence of waterway maintenance and dredging brought about by the improvement of using slope encountering level in the future and the development of countermeasures.