福州解放大桥吊杆更换施工技术

通过介绍旧式吊杆拱桥存在的缺陷,阐明该类拱桥更换吊杆及维修加固的必要性和紧迫性,并以福州解放大桥为例,介绍换杆及施工过程,并着重介绍吊杆更换过程中替换索的设置要求、结构及施工工艺,这可为以后的吊杆更换及类似工程提供参考。     

商业银行国际贸易融资及其风险防范问题研究

分析了我国商业银行国际贸易融资的发展现状以及出现的问题,将定性分析与定量分析相结合,建立了风险评估的模型,为商业银行进行授信提供了操作工具。最后对我国商业银行国际贸易融资的发展提出了综合性建议。     

航路规划对远程鱼雷远程打击目标的影响

利用远程武器对目标进行超视距远程打击是未来海战的主要手段之一,航路规划技术对提高远程水下武器的安全性及突防攻击能力起着重要作用,根据远程打击目标的特点及影响航路规划问题的因素,提出了远程鱼雷航路规划的基本流程,最后分析了在远程打击过程中,航路规划对远程鱼雷提高远程打击效果的影响。     

基于模糊信息源的船舶航线补充评价方法

考虑到船舶航线评价不仅关系到船舶航行安全,也与船舶的运营效益密切相关,提出基于模糊信息源的船舶航线补充评价方法,充分利用信息的价值修正指标权重,使评价的结果更有参考价值。     

南北航线江苏段海域通航环境安全评价

在层次分析法(AHP)、专家调查法和模糊决策理论的基础上,提出沿海通航环境系统多层次,多指标模糊决策理论模型,并将其应用于南北航线江苏海域通航环境安全评价的实际问题中,认为影响其船舶航行安全的主要因素是交通流量和航道,提出相应的改进措施。     

中国与海事经济——两年来概况

阐述了两年来的中国和世界海运经济发展,介绍了中国航运和造船业现状和两年来的发展,回顾了这两年世界经济发展进程中发生的一系列事件及其对航运业和海运贸易的影响,指出最严峻的挑战是如何应对此次造船订单和产能危机,总结了可能面对的挑战与机遇     

连盐铁路连云港地区线路引入方案研究

主要介绍了连盐铁路线路方案的选线思路及设计原则,并结合路网规划、城市规划、沿线地形地质条件,着重对连云港地区多方案比较研究后,以连云港站西端引入,经云台山站东出的西进东出方案为推荐方案,既便于运输组织,又有利于地方港口开发。     

鱼卡(红柳)至一里坪铁路地质选线研究

研究目的:鱼一线地处柴达木盆地西北边缘地带,自然环境恶劣,地质条件复杂,线路穿越了世界上最大的雅丹地貌(俗称"魔鬼城"),风沙、盐渍土遍布,湖盆低洼地带存在软土、盐岩。在该地区进行地质选线对于降低后期勘察设计难度、减少投资、降低后期维护费用等方面起决定性作用。本文针对线路穿越风沙、软土、盐渍土、盐岩四类工程地质问题时,采取何种地质选线的技术原则进行了研究。研究结论:(1)在本次地质选线过程中,综合采用了遥感解译、地质调绘、钻探、试验等勘探方法,查清了沿线的工程地质条件;(2)对线位比选起决定性因素的工程地质条件主要有风沙、软土、盐渍土、盐岩,选线应遵循"绕避为主"的原则;(3)通过对北线方案(CK)、中线方案(C9K)、南线方案(C10K)三条线位进行比较,得出中线方案优于北线方案、南线方案,宜做为本线的推荐方案;(4)本研究能够为类似地区的工程项目选线研究提供一定的借鉴。     

Key criteria influencing the choice of Arctic shipping: a fuzzy analytic hierarchy process model

As Arctic sea ice shrinks due to global warming, the Northern Sea Route (NSR) and the Northwest Passage (NWP) offer a substantial reduction in shipping distance between Asia and the European and North American continents, respectively, when compared to conventional routes through the Suez and Panama Canals. However, Arctic shipping routes have many problems associated with their use. The main objective of this paper is to identify the key criteria that influence the decisions of shipping operators with respect to using Arctic shipping routes. A multi-criteria decision-making methodology, the Fuzzy Analytic Hierarchy Process, is applied to rank four potential categories of criteria (‘economic’, ‘technical’, ‘political’ and ‘safety’ factors) and their sub-criteria.

The results of the analysis suggest that, on aggregate, ‘economic’ is the most important category of influential factors, followed by ‘safety’, ‘technical’ and ‘political’ factors. The paper concludes, however, that the most influential specific sub-criteria relate to risks that lie mainly within the ‘safety’ and ‘political’ domains and that, especially in combination, these overwhelm the importance which is attached to ‘economic’ factors such as reduced fuel use. Finally, the implications of these findings for the future development of Arctic shipping are addressed at a strategic level.     

An exploratory study on the Northern Sea Route as an alternative shipping passage

This qualitative inductive research explores the potential benefits for the Scandinavian economy and ports through the implementation of the Northern Sea Route (NSR) as an alternative for container shipping to the established Southern route through the Suez Canal. To extract expert’s opinions and address these objectives, we utilised in-depth face-to-face semi-structured interviews through purposive sampling in a single case study setting. The analysis of the data demonstrates that the commercialisation of NSR can yield benefits for the Scandinavian economy (e.g. GDP increase, jobs creation) and reveals the benefits of Scandinavian ports (e.g. ECA’s, flexibility, hinterland, etc.) compared to other ports in North West Europe, which potentially grasp the NSR as an opportunity. However, it is highlighted that this can only be achieved if Scandinavian countries are proactive and secure their involvement.