集装箱系固计算综述

针对集装箱船航行过程中集装箱的运输安全,探讨了集装箱系固的计算方法。以德国劳氏规范和中国CCS规范为依据,分析了集装箱的受力及力的传递与分配,重点阐述了集装箱堆重计算的原理。并以堆重计算为基础,介绍了捆扎计算的基本方法。希望对集装箱船的结构设计以及舾装设计有参考作用。     

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所谓混堆模式下集装箱堆场箱位指派问题,是指混堆模式下,在待作业箱区为已知情况的前提下,确定集装箱在指定箱区中的最优堆存位置,以最大限度地控制堆场倒箱率,提高堆场装卸作业效率.在滚动式计划的基础上,充分考虑了不同作业箱型与倒箱作业的内在联系,依据堆场混堆的作业规则定义了作业箱优先等级,以新增集装箱压箱数最小为目标对此问题构建了箱位指派优化模型,基于问题自身的特点设计了相应的启发式算法进行求解,通过实际算例进行验证.验证结果表明,该模型及算法比港口现有混堆堆存策略有较大改进.     

Integrating multi-stage data envelopment analysis and a fuzzy analytical hierarchical process to evaluate the efficiency of major global liner shipping companies

In this study, we establish a multi-stage data envelopment analysis model to evaluate the efficiency of global liner shipping companies (LSCs). Because conventional solution procedures cannot guarantee the uniqueness of solutions, in this study, we specifically devise a new two-phase algorithm to overcome this problem. The first phase ranks the priority of all stages by applying fuzzy analytical hierarchical process. The second phase then solves the efficiency score for each stage according to its priority. We established and empirically tested a three-stage research model based on data collected from the Containerization International Year Book, the Alphaliner website and annual LSC reports for the year 2012. The results show that the proposed algorithm not only determines unique solutions for the efficiency scores but also determines the priority order of the stages involved in this process. Taking advantage of the proposed model and algorithm, LSCs can effectively locate bottlenecks in their production processes and further improve them by adjusting the values of the corresponding input and output variables. In addition, the priority order of the stages obtained from the empirical study can also help LSCs allocate their resources.     

诺尔桥吊可双箱作业改造

为了让港区的老设备满足装卸业务日益发展的新形势,宁波北仑国际集装箱码头有限公司对诺尔桥吊进行了改造。将BROMMA双箱吊具应用到老式的诺尔桥吊上,使原本只能单箱作业的诺尔桥吊实现了双箱作业。大幅提高了装卸效率,并增强了设备稳定性,减少了桥吊故障停机时间。     

船载集装箱危险货物瞒报谎报现象的管理

文中对船载集装箱危险货物谎报、瞒报引发的事故及产生的影响对这一现象进行了进一步的分析，指出了船载集装箱危险货物监管中存在的问题，并针对这一现象提出了管理对策。     

构建铁路物流中心为核心节点的多式联运系统

在分析我国铁路集装箱多式联运现状及问题的基础上,提出构建以铁路物流中心为核心节点的多式联运系统,介绍构建以兰州市铁路物流中心为核心节点的西部多式联运系统,以达到降低运输成本、提高铁路运输在集装箱多式联运中份额的目的,为铁路行业本身创造新的效益增长点。