Study On The Optimization Of Production-Operation Of Container Quay Berth

The berth production operation(BPO) of container terminal mainly means the process operation of loading/discharging of containerships, which contains use of equipment and orgnization of workers.High efficient managenment of BPO plays an important role in the whole operation of container terminal.This paper addresses the BPO management problem, aiming to solve issues of the route optimization of container trucks and deployment optimization of equipment on the basis of gantry cranes(GCs) handling system. The berth resources have become the key issues on a terminal operation, and how to make full use of them has already become the main point in today's research. After berthing a ship, quay cranes(QCs) take charge for loading and unloading work, so the efficiency of quay cranes can measure that whether the berths have been made full use of, in the meantime, in order to give full play to the efficiency of QCs, enough container trucks are needed. The container trucks move from QCs areas to container yards(CYs) or from CYs back to QCs, the routing arrangement should be directed by scientific routing management theories, instead of being decided at random, which makes use of container trucks economic and management of terminal organized. As for two berths, if circumstance of one berth loading while another unloading exists, the reseach on routing optimization problem will be more complicated, which should take QCs and CYs of both berths into consideration and put all the reletive factors into a system.Furthermore, the shortest routes of each period of time from routing optimization model are different, the number of container trucks for each route must be different, so how to deploy container trucks also needs scientific analysis and management, and the work requirement between GCs and container trucks is in the same way. The key issue among these three equipment is connection efficiency, so we need focus the research on the connected point between two links of the operation process.This paper proposes a routing optimization model taking both independent transport and conbined transport of container trucks into consideration with the objective of shortest of total moving distance. Routing optimization model can find the optimal work routes of container trucks under day and night schedule of a container terminal, after that, the paper also proposes a Berth Equipment Deployment Model, which helps to decide the optimal deployed number of container trucks and GCs on the basis of work efficiency of various of equipment and the objective of lowest of total operation cost.Trough the mathematic analysis mothed of production process analysis and mathematic theory modeling, the author gives a Integer Liner Programming Model discribing the berth production operation, and also puts this model into practice. The numeric experiment is about a fictitious container terminal, after using the model, we can get a production operation schedule of the whole day, the result is rather objective and reasonable, in the meantime, the author compares the optimal gross moving distance to that of traditional independent transport style, then finds that the container trucks efficiency happens more than 20% increasing, which can prove the model possesses pretty good academic support and practical directed effect on the actual work of berth production operation.