三峡船闸一次过闸平均吨位研究

Study on average tonnage for one lockage of Three Gorges ship lock

针对目前船舶一次过船闸平均吨位受船舶大型化及船型组合的影响难以精确计算的问题,结合三峡坝区船闸多年的实际运行资料,系统分析了船舶一次过船闸平均吨位的影响因素。给出了"吨位-尺度函数关系"法的定义,建立了川江船型的吨位尺度函数关系式。根据实际资料对计算公式进行了验证,并给出了三峡船闸通航后期的一次过闸平均吨位。应用该方法可对未建船闸的规模做出合理的规划或对已建船闸的效益做出客观的评价。

Affected by increasing large-sized ships and the combined ship types,it is difficult to precisely calculate the average tonnage for one lockage of ships.We systematically analyze the influential factors of average tonnage for one lockage with the actual operation data of TGP ship locks for years.We defined the ＇Tonnage-Dimension Functional Relationships′ method and created its formula in the Sichuan section of the Yangtze River.Finally,the formula is validated according to actual data;and average tonnage for one lockage of TGP ship lock in the later period of shipping is given.The method can be applied to reasonably plan the scale of the unfinished ship lock and evaluate the benefit of built ship lock.