航运对长江生态环境的影响和绿色航运体系研究

总结长江航运业对长江水、气、声、生态造成的影响,认为其污染具有长期性、分散性、固定性、流动性和复杂性的特点。为此,构建以生态港口和航道以及新型船舶制造为核心,以行业标准、环境监测网和科学研究为支撑的一套完整的绿色航运体系,对长江航运建设和绿色航运理念的推广具有借鉴意义。     

雅万高铁创新实践与启示

作为中国高铁境外全面合作开工建设的第一单,及时分析和总结雅万高铁项目的实践经验,有利于更好地推进项目,可为其他海外项目提供参考和借鉴,也有助于中国高铁"走出去"以及"一带一路"倡议的落实。介绍雅万高铁项目合作的背景、形成历程和推进情况,从主要技术标准、合资公司(KCIC)组织架构、工程总承包(EPC)联合体组织架构等方面具体介绍项目的基本情况和合作模式。重点分析项目面对的机遇和挑战,总结项目实施的经验,指出雅万高铁项目是落实国家战略、具有示范性和标志性的项目,其所处时代机遇难能可贵,同时也对项目提出了更高的要求。结合项目具体实践指出征地拆迁、公共设施迁改和工程质量控制是影响项目推进和实现精品工程目标的关键因素,提出相应的指导思想和解决思路,并从把握需求、合作模式、沟通与共赢以及中国标准"走出去"等方面,总结雅万高铁项目成功落实和顺利推进的经验和启示。     

TBM胶带输送系统硫化及故障分析

文章详细介绍了TB880E型隧道掘进机的胶带输送系统的硫化流程,对TBM输送胶带系统在使用中易出现的故障作了介绍与分析,并分析了皮带输送系统故障与排除方法。根据秦岭隧道和桃花铺隧道积累的经验,经过新疆吐库二线中天山隧道实践表明,这些措施可有效地减少胶带损坏,有效节省大量维护保养时间,提高工效。其成果可供TBM及类似大型施工设备的使用、维护借鉴。     

BIM技术在水运工程中的应用

水运工程项目具有工期长、施工环境恶劣、野外作业、水上作业及受地形、地质、气候影响大等特点,故水运工程不能直接套用房建的BIM技术。分析BIM在水运工程中的应用现状,阐述BIM在水运工程设计、施工以及设计施工协同中的应用,指出BIM在水运工程运用中存在的问题并给出解决对策,提出水运工程BIM技术应用于\"一带一路\"海外项目中的机遇,并给出10D-BIM的设想。     

我国铁路电气化系统在“一带一路”中的理论与实践

在铁路"一带一路"实践中,各国对系统兼容性、互联互通性要求很高,我国铁路电气化系统制式的特点优势明显,对各种气候条件、速度目标值适应性强。我国地形地貌、气候条件、铁路功能的多样性及各类项目的不断建设,使电气化工程技术人员积累了大量实践经验。通过我国电气化标准与国际标准的理论分析与对比,并结合近10年来海外铁路项目,分析总结铁路电气化工程的实践经验与教训,为"一带一路"国际工程项目提供参考。     

中国企业投资进入希腊港口的启示

中国中远集团获取了比港2#、3#集装箱码头35年特许经营权,并使比港重焕生机,以实例验证了一带一路21世纪海上丝绸之路互联互通合作模式,为中国在希腊、欧洲乃至世界带来积极影响.本文结合此案例,分析中国企业投资进入欧盟经济较发达国家的前景,为今后类似投资项目提供一定的参考.     

Development of an IoT-based container tracking system for China’s Belt and Road (B&R) initiative

To ensure the successful implementation of China’s Belt and Road (B&R) Initiative, it is essential to enable the real-time monitoring of containers’ locations, prevent theft during cargo delivery, ensure more efficient logistics management and reduce carbon emissions. For this, it is vital to have an economic and effective system to track and control containers across multiple countries. However, this requirement cannot be met by today’s container tracking systems because they are either limited within the borders of each country or expensive to employ internationally. This study thus presents a framework for an IoT-based container tracking system that enables users not only to grasp the international flow of container movement with one check but also to achieve smooth cross-border procedures. To verify the system’s performance, an empirical test was made for an actual container shipped from Korea to Poland. The test results showed that the system could successfully track the location of the container in real time across international borders. Last, this study discusses the policy development and international cooperation that should take place to enable the introduction of this container tracking system.     

海外既有铁路升级改造可行性研究报告编制要点分析

阐述加强海外既有铁路升级改造可行性研究的意义,并结合中巴经济走廊铁路通道——巴基斯坦既有ML-1线升级改造项目的具体情况,面对既有铁路升级改造和海外铁路工程建设这2大难点,充分论证"为什么要升级"的必要性、明确"怎样进行升级改造"的目标、细化"如何完成升级改造"的研究、解决"升级改造后怎么用"的难题、充分利用当地勘察设计资源等5个方面,提出全生命周期一揽子解决方案。对可行性研究报告编制工作要点进行分析,为"一带一路"类似项目的开展提供借鉴。     

Intermodal route selection for cargo transportation from Korea to Central Asia by adopting Fuzzy Delphi and Fuzzy ELECTRE I methods

Due to the increase in trade from Korea to Central Asia, an efficient intermodal route for transporting cargo is important. Intermodal routing for long-distance transportation faces operational challenges, such as customs clearance, track gauge differences, and climate limitations. The initiative of the Silk Road Economic Belt recently proposed in China could improve trade and transport links in Asia and create an efficient transportation route that focuses on the railroad service provided in China. The objective of this study is to obtain an evaluation structure for intermodal routing and then find the route for transporting cargo from Korea to Central Asia under China’s Silk Road Economic Belt with integrated Fuzzy Delphi and Fuzzy (Elimination Et Choice Translating Reality (ELECTRE) I methods. After a sensitivity analysis is performed, development strategies and alternative routes are suggested. The results show that among the five principal factors, total cost is the most important factor for logistics companies when they select a transportation route, followed by reliability, transportation capability, total time, and security. Of the sub-factor weights, transportation costs and cooperation and emphasis among state organization are important. In the intermodal route results, route 3, Incheon to Qingdao to Horgos to Almaty, is preferred.     

基于MPDB工况下驾驶员侧假人伤害值优化研究

本文分析得出了某车型MPDB碰撞工况和ODB碰撞工况中车身响应和假人伤害值的差异,针对假人胸部压缩量和小腿胫骨指数超标的问题,考虑到白车身设变成本较高,提出了安全带配置优化的5个方案.通过对5个优化方案的仿真结果分析得出,二级限力装置对胸部压缩量具有较大的改善,相对于恒定限力式安全带,递减限力式安全带的胸部压缩量减小了...