| With the further development of economic internationalization,trade exchanges between countries are more frequent.Sea and rail transportation are common international transportation methods,and the emergence of containers has greatly promoted the development of sea-rail combined transportation.Compared with developed countries,my country’s container sea-rail intermodal transportation started relatively late,and the proportion of container sea-rail intermodal transportation is relatively low.In recent years,with the support of the state,the infrastructure related to sea-rail intermodal transportation has become more and more perfect,and more and more ports have realized railway entry,which facilitates the operation of container sea-rail intermodal transportation.In the near future,my country’s sea-rail combined transport will inevitably usher in a period of development and prosperity.The port is a transit station that sea-rail intermodal transportation must pass through.How to choose the appropriate container transfer method and how to deal with the contradiction between the limited equipment in the port and the increasing number of container tasks are the main issues considered in this thesis.This thesis has done the following work:(1)The existing sea-rail intermodal port arrangement and different sea-rail intermodal transport modes are analyzed,and the most suitable port arrangement at this stage is to lay the railway behind the yard.The most suitable transfer method is direct transfer and Hybrid transport combined with indirect transport.(2)After determining the port layout and transshipment method,consider multiple practical constraints such as operation sequence,operation time,equipment location,equipment connection,etc.,and build a mixed integer programming model with the goal of minimizing the total completion time of container port transshipment,and design taboos search algorithm to solve.(3)Design examples and analyze them.Under certain conditions of loading and unloading handling equipment,when the proportion of direct transshipment containers is about 50%,the completion time of container transshipment is the least.Afterwards,the consumption of port equipment was analyzed after all containers were loaded.The task sequence of rail cranes and trucks is determined when the proportion of direct transshipment containers is different.Finally,considering the marginal benefit of collecting cards,determine the optimal number of collecting cards. |
