建立了装车方案的优化决策模型,并充分利用车流合理径路的组合特征,依据组合优化的原始一对偶理论,设计了求解该模型的一个有原始一对偶圈算法. The optimization decision model of the loading plan is established, and the combined characteristics of the reasonable route of the traffic flow are fully utilized. According to the original dual theory of combinatorial optimization, an original pair of two coupled loop algorithms is designed.