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根据到港船舶的装卸作业量、最优靠泊位置,为了最小化船舶在港时间、提高客户满意度,对延迟完工的装卸任务量、与最佳靠泊位置的偏离程度设置不同级别的惩罚费用系数;同时为了充分利用岸桥资源,考虑岸桥可在船舶间移动装卸的动态调度,研究连续型泊位下泊位分配-岸桥动态调度的联合优化问题.建立了以最小化延迟完工任务量、偏离最佳靠泊位置和岸桥移动的惩罚费用为目标的整数规划模型,结果可得到船舶靠泊计划,以及具体的岸桥分派计划.通过算例验证了联合调度优化模型对提高集装箱码头作业效率和船公司客户满意度的有效性. 相似文献
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随着集装箱船舶日益向大型化发展,码头前沿水深及岸边集装箱起重机(以下简称岸桥)的外伸距和起升高度等要求也逐渐提高。本文通过构建岸桥起升高度与集装箱船舶匹配度计算模型,为确定码头作业能力、岸桥可作业潮位、船舶靠泊位置等提供依据。 相似文献
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《江苏科技大学学报(社会科学版)》2018,(5)
泊位和岸桥资源是集装箱码头至关重要的战略资源,如何合理有效进行资源配置尤为关键.文中将一艘船舶靠泊作业过程中需要占用的泊位资源、岸桥资源以及时间资源三者构成一个船舶资源占用块,通过这样的抽象变化,港口码头资源调度分配问题就转化为三维矩形布局问题.与此同时,考虑到偏好位置偏离、岸桥并行作业干扰以及船舶延时到、离港这3大因素的影响,建立以船舶在港资源占用总成本最小化为目标的泊位-岸桥-时间分配非线性规划模型,利用Matlab优化技术处理非线性多目标问题.计算表明,依据该数学模型进行泊位分配与岸桥调度更符合码头实际运营情况,从而高效实现资源合理配置,提高港区管理水平与经济效益. 相似文献
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随着集装箱船舶日益向大型化方向发展,双40英尺岸桥在集装箱码头的应用越来越普遍。目前国内外大型集装箱码头双40英尺岸桥装卸工艺日臻完善,为提高码头作业效率、实现规模经济效益以及提升码头核心竞争力作出重要贡献。本文以上海盛东国际集装箱码头(以下简称盛东码头)和高雄高明集装箱码头(以下简称高明码头)为例,分析双40英尺岸桥装卸工艺的主要影响因素和注意事项,以期为集装箱码头成功应用双40英尺岸桥装卸工艺提供参考。 相似文献
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1集装箱码头作业特点(1)作业机械化现代集装箱码头的岸边装卸、水平搬运、堆场进提箱等作业均已全面实现机械化。通过岸桥、轮胎吊、集卡、正面吊等专用设备,集装箱码头可实现快速、高效、连续作业。通常情况下,3000~4000TEU集装箱船舶最快可在靠泊码头后的24h内完成装卸作业,装卸效率远远高于传统散货船的装卸效率。 相似文献
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价值观是指人们对价值的性质标准、构成和评价的基本看法和态度,是指导人的行为的一系列基本准则和信条。构建海事核心价值观是时代发展的要求,更是海事自身发展的需要。 相似文献
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This chapter presents a summary of the findings of the workshop on ‘Analytical and Institutional Methods and Frameworks’. The paper discusses the nature of the analytical methods used in the papers presented and the purposes for which they were employed, which were generally to either assist in the planning and operation of public transport or to monitor the efficiency and effectiveness of transport services. Subsequent sections examine issues related to data collection and management, and the more general issue of institutional arrangements. Policy and research agendas needed to support further consideration of the subject are then identified. 相似文献
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介绍青藏高原多年冻土的冻融特性,并结合我局在青藏铁路十二标段的具体施工,分析了冻土的冻融特性及具体防止措施. 相似文献
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Geoffrey Wood 《Maritime Policy and Management》2004,31(2):157-171
This paper explores the current state of coastal and inland shipping in Tanzania. It provides an overview of the state of ports and shipping in Tanzania, and the reasons underlying the present crisis of competitiveness in terms of both global pressures and national and regional dynamics. Problems of competitiveness are at least partially due to under-investment, management failures, skills shortfalls and difficulties in interfacing with the railway network. Less easy to resolve structural problems include the great imbalance between imports and exports, heightened regional competition and ongoing political instability in the Great Lakes region. 相似文献
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风量与风压的简易测量及应用 总被引:2,自引:0,他引:2
锅炉正常燃烧必须有充足的风量,当锅炉鼓风或引风不足将导致锅炉效果恶化,锅炉出力、热效应率明显下降。结合工程实例,介绍结托管简揭测试鼓、引风系统各部分风压、风量,帮助判断分析工程实际问题的简便方法。 相似文献
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Elizabeth A. Wilman 《Coastal management》2013,41(3):211-230
As the controversy over Outer Continental Shelf (OCS) oil and gas leasing continues, with environmentalists and fishermen seeking to block or delay leasing decisions that they think will adversely affect their interests, the need for better estimates of the environmental costs associated with OCS development becomes increasingly apparent. Although high degrees of precision in such estimates may never be economic, let alone feasible, better knowledge would reduce the uncertainty surrounding the magnitude of such costs, and would make it easier to come to grips with the problem and reduce, if not resolve, the controversy. 相似文献