Study On Scheduling Of Continues Berth-crane-trailer At Container Terminal

As the international port market competition is becoming increasingly fierce,it has become the urgent matter to improve the operational efficiency of the container terminal under the condition of limited port resources.The production operation of the container terminal mainly includes container ship berthing,quay cranes allocation,container trucks assignment,and so on.From the perspective of the actual production operations of the container terminal,this article mainly analyzed the system integration management problem among berths,quay cranes and container trucks during the operation management process of the container ships from arrival at the port to complete container loading and unloading task in order to reduce the port overall operating costs.In the circumstance of continuous berths and mixed operation,this article studied the continuous berth-crane-trailer scheduling and optimization problems aiming at minimize the overall cost of all the container ships arriving at the port during the plan period.The main research content is as follows:(1)On the basis of a large number of literature reading about berth allocation,quay cranes scheduling and container trucks assignment,this article focused on the analysis and research of the berth allocation,quay cranes scheduling and container trucks assignment problem in the container terminal aiming at the deficiency of the existing research.(2)Classified the container terminal facilities,and mainly analyzed dispatching mode,scheduling factors and correlation about the three main resources of the container terminal with the combination of the production process of container terminal.(3)Combined with the correlation between continuous berths,quay cranes and container trucks,the continuous container terminal berth-crane-trailer scheduling and optimization model was established with the target of minimum the overall cost of all the container ships during the plan period under the premise of continuous berths and loading and unloading hybrid.(4)For the construction of the mathematical model,the genetic algorithm was selected to solve the problem.The algorithm adopted segmented real number in individual coding.In theoperation of selection by using combination of the optimum reserved strategy and uniform.According to the characteristics of the chromosome paragraphs,targeted adopt the method of single point crossover and arithmetic crossover,and designed corresponding variation and gene repair operations.(5)With a practical container terminal as the research object,combined with the real data of the terminal,the scheduling optimization model of the continuous berths,quay cranes and container trucks was applied to the case after the analysis and handles of the original data.The solving results and the actual scheduling mode of the case was carried on the contrast analysis to show the validity and operality of the model built in this paper.