关键词: 复线船闸, 限时服务规则, 船舶排布可行方案, 优化调度

Abstract: In view of the shortage of the existing queuing rules for ships passing through locks, the “time-limited service rules” are proposed to construct the multi-objective bilayer optimal scheduling model for second-line ship locks. The upper model is used to obtain the feasible scheme for ship arrangement of two lock safe areas while the lower is used to obtain the optimal number of sluices to be arranged for different ship scheduling schemes. The lower model is completed in two stages among them: For ships conforming to the “time-limited service rule”, a 0-1 planning model is constructed with the goal of minimum number of locks to obtain the number of sluices arranged by such ships. For other ships, the “first-come-first-served rule” shall apply, a multi-objective decision model is constructed with the goal of minimum number of sluices and maximum utilization rate of lock rooms to gain the frequency of different ship arrangements and standards should be obtained. Taking the data of a double lock on the main channel of Jiangsu province within 24 hours of a day as an example, the calculation results show that: Compared with the “empirical arrangement”, the optimization scheme obtained by the optimization model in this paper can save 2 sluices for each of the two locks, The average utilization rate of lock rooms of the two ship locks increased by 3.66 and 4.72 percentage points respectively.

Key words: second-line ship lock, time-limited service rule, feasible scheme for ship arrangement, optimal scheduling