大连港大窑湾10万t筒仓的地基处理

论述大连港大窑湾10万t筒仓基础的处理方案、技术经济比选、施工技术及使用情况。     

大连港403集装箱堆场工程软基处理措施

介绍大连港403集装箱堆场工程软基的地层结构特性,以及地基处理所采取的措施。     

对大连港集装箱运输发展的思考

通过对大连港集装箱吞吐量发展状况及其运输状况的分析,对大连港集箱发展面临形势的分析,提出加快大连港集装箱运输发展的方向及措施。     

连云港港30万吨级航道二期工程难挖地段的土层特性

连云港港30万吨级航道二期工程航道疏浚施工项目LYG-302-H1.1标段施工过程中,绞吸船多次发生堵管现象,影响施工效率。为避免事故频繁发生,通过整理事故多发地土质资料,分析土层特性及堵管原因,对此类难挖地段的土质指标进行归纳总结。结果表明：绞吸船施工难挖地段土层分布不均匀;同一高程下,黏土层中含有黏质粉土和砂质粉土,且混有离散的钙质胶结物;标贯击数大于20击。     

厦门港海沧港区“浅水深用”问题研究

为满足厦门港口建设的需要,提出在九龙江河口湾北岸规划海沧深水港的方案,此范围天然水深仅为1. 5～5. 0 m,如建设深水港需开挖12. 0～15. 5 m,规划方案是否可行取决于港区的泥沙回淤强度。通过对已进行的模型研究成果和现场资料分析,指出随着码头岸线向西发展,航槽和滩面床面高程差逐渐加大,港池内不仅存在因水深增大,流速减缓并引起悬沙淤积,还需考虑归槽水流的刷滩作用引起的回淤。根据各种水流特点,计算浅滩深挖后港池内泥沙回淤率,认为在海沧港区建设深水港是可行的。     

Port competition in Latin America and the Caribbean: the role of concessions and competition policy

Appropriate port regulation and competitive forces tend to be related to higher levels of operational and economic performance of ports. From a policy-making perspective, pursuing efficiency and securing competition in ports to reach a level playing field is a two-step process requiring (1) ex-ante regulations to set the rules that maximize the competition for the market, especially when the policy objective is to attract private operations to ports on competitive concession processes and (2) ex-post competition policy to monitor and preserve competition in the market. This paper studies port regulation in Latin America and the Caribbean (LAC) from a competition perspective, analyzing both ex-ante and ex-post policies implemented in the region. The analysis reveals that the competitive environment in LAC is low, giving room for possible anticompetitive practices in the LAC port sector. Since the end of the 1990s, approximately 80% of container terminals in the region were granted to only five companies. Chile and Mexico have been found to be the best practices in the region, with better conditions assuring robust competition in the market. The main policy implication from this analysis is the need for a stronger involvement of antitrust agencies throughout the port concession processes.     

Pricing strategy and tariff structure for a port authority: a case study of South Africa

South Africa’s Transnet National Ports Authority’s (TNPA) tariff structure shows imbalances and cross-subsidisation amongst commodities and groups of port users. Benchmarking studies show that South African port costs are below the benchmarked mean for low-value bulk commodities like coal and iron ore, and above the mean for high-value containerised commodities. Vessel charges are also below the benchmarked mean and the required tariff revenues are raised from the tariffs charged to port tenants and cargo owners. This study examines and compares the 2013/2014 TNPA tariff structure with that proposed by the Ports Regulator of South Africa. It compiles, calculates and compares 254 commodity cargo dues with their relevant sector base tariffs for the year. The results indicate the level and direction of cross-subsidisation within and between break-bulk, dry bulk, liquid bulk and containerised cargoes. Of the 254 commodities examined, 100 are below the sector base tariff (being subsidised) and 154 are above (subsidising other cargoes). The findings of this article contribute to the implementation and monitoring of a tariff strategy that will allow for a more reasonable, just and cost reflective TNPA tariff structure.     

盘锦港深水航道水沙环境特征分析

综合多次现场实测资料,分析了盘锦港10万吨级深水航道的水沙特征,讨论航道回淤泥沙来源和产生泥沙骤淤的可能性。研究结果表明:1)该海区波浪动力不强,以风浪为主;潮汐为非正规半日潮,属中强潮海域;潮流为正规半日潮流,主要以往复形式运动,口门内侧存在强度较弱的旋转流。2)河口区和近岸浅滩含沙量高、外海深水区含沙量较低,泥沙主要以悬浮形式运动,大风影响下各站含沙量均显著大于常规天。3)航道沿程底质泥沙呈粗细交错分布;波流作用下两侧岸滩就地起动搬运的泥沙为航道淤积的主要来源和直接来源,回淤物质较细,泥沙淤积以悬沙落淤为主;出现骤淤碍航的可能性较小。     

中俄国际交通走廊珲春国际港可行性分析

珲春市是"一带一路"东起点,也是吉林省借港出海唯一通道。滨海2号路线为长春—吉林—珲春—扎鲁比诺港,将吉林省与俄滨海边疆区海港连接起来,实现东北货物南运出境不出国。由于珲春—扎鲁比诺港路线尚处起步阶段,集疏运条件需要培育、磨合的过程,相较形成规模的渤海湾港口通道存在劣势。首先对标营口港路线运费标准,确定珲春节点具有经济性的腹地范围,再根据腹地企业确定相关货种,在保证完成浙吉两省合作任务的同时,确保项目的经济合理性。     

港口国监督在执行《压载水公约》中存在的风险、不确定性以及相关建议

随着《压载水公约》的生效,如何更好地实施公约要求成了港口国关注的重点.港口国监督(PSC)在促进港口国实施公约中发挥着重要作用[1].然而,随着PSC的深入,一些潜在的问题也值得关注.总结了目前PSC执行《压载水公约》过程中存在的风险与不确定性,并提出了相应的解决建议.