安徽省内河港口干散货装卸工艺存在问题及改进建议

为推动国内内河港口生产发展,提高干散货装卸效率,以安徽省内河港口为例,首先简要介绍安徽省内河港口干散货装卸工艺的现状,认为改进干散货装卸工艺水平已成为内河港口发展的当务之急;其次分析其目前存在的主要问题,并结合实际情况,从装卸作业、管理经营、安全环境等方面提出改进建议。     

铝质空气螺旋桨综合防腐蚀技术

根据空气螺旋桨在某船上的自身防护特点,通过耐腐蚀、耐磨蚀等各种实验,对空气螺旋桨桨叶表面氧化处理工艺和表面防腐涂层材料进行了筛选。     

内河船舶和港口污染问题对策研究

在社会主义新时代环境下,我国内河治理工作取得了初步成效。内河通航恢复后,随之而来的就是船舶和港口污染的问题。本文分析了内河船舶和港口污染问题,提出内河船舶和港口污染管理中存在的问题,并且就相关问题提出解决策略。     

内河水沙冲蚀条件下港口钢构件涂层损伤劣化的图像识别方法*

为探究内河港口码头钢构件在水沙冲蚀条件下防腐涂层的损伤劣化规律,通过自制的水沙加速冲蚀磨损装置开展不同冲蚀条件下涂层材料损伤劣化的试验研究,基于图像识别技术对冲蚀损伤后的涂层表面形貌进行数字化和二值化特征提取,设定区分像素孔隙的灰度阈值,用以定量分析涂层表面破坏形式和损伤劣化面积。结果表明：当来流角度呈45°时,涂层损伤劣化最严重且表面凹坑比和划痕比大致相同,涂层损伤劣化面积随来流速度的增大呈指数扩大趋势;当含沙量低于45 kg/m3时,含沙量的增大对涂层损伤劣化有促进作用,但当超过45 kg/m3后反而降低了涂层损伤劣化速率,实现了在无损情况下对内河水沙冲蚀条件下钢构件涂层的损伤劣化规律分析。     

安徽省内河简易落后港口设施改造升级方案

针对安徽省内河简易落后港口设施目前诸多亟待解决的问题,从安徽港口发展现状出发,以安徽港口发展目标为指向,在港口设施适应性评价的基础上,提出简易落后港口设施改造升级及效果评估方案.研究结果对于决策部门开展内河简易落后港口设施改造升级工作具有重要参考意义.     

内河港口物流园区发展相关问题研究

为探讨我国内河港口物流园区发展策略和最佳布局方案,在详细分析国内外港口物流发展阶段及其必备条件的基础上,提出当前长江上游地区港口物流的成熟条件和存在的问题,进而以此为基础分析内河港口物流园区建设发展中需要解决的基本问题,并提出港口物流园区开发模式、经营模式、发展类型、选址原则等。以全国最大的内河港口物流园区——重庆果园港口物流区为案例,利用提出的理论进行分析,得到了内河港口物流基地的发展策略和适宜的布局方案。     

内河库水位变动下码头桩基混凝土碳化深度预测模型

内河环境下,由于混凝土碳化所导致的内部钢筋锈蚀是引起港口码头结构发生耐久性失效破坏的主要原因。为研究内河库水位周期性变动下码头桩基混凝土的碳化规律,开展一般大气环境与干湿交替环境下混凝土的加速碳化物理试验。结果表明:1)混凝土碳化深度随碳化时间的增加而逐渐增加,碳化速率随碳化龄期增长而减缓。2)与一般大气环境相比,干湿交替作用下混凝土的碳化深度更小。基于Fick第一定律的碳化深度模型,通过拟合回归并修正后建立了内河一般大气环境和干湿交替环境下码头桩基混凝土碳化深度预测模型。经对比,模型预测值与试验实测值吻合程度良好,验证了该模型的精度。研究成果可为内河港口码头基础结构运营维护及耐久性评估提供技术支撑。     

内河船港口建设费稽查的难点及对策

从来沪内河船港口建设费稽查中存在的问题入手,反思港口建设费监管的措施,分析内河船港口建设费稽查的问题和难点,提出强化内河船港口建设费稽查的对策。     

内河港口物流园功能与定位

<正>作为第三代港口所具备功能和定位,港口物流是指中心港口城市利用其自身的口岸优势,以先进的软硬件环境为依托,强化其对港口周边物流活动的辐射能力,突出港口集货、存货、配货特长,以临港产业为基础,以信息技术为支撑,以优化港口资源整合为目标,发展具有涵盖物流产业链所有环节特点的港口综合服务体系。内河港口虽然在功能和定位上难以和作为综合物流供应链中最大货物集结点的枢纽性海港相比,但作为内陆的物流集散中心,其依然要具备第三代港口的功能和定位,同时结合内河水运的特点及综合交通体系的发展要求,发展有一定特色的内河港口物流园。     

内河船舶和港口污染问题及对策研究

内河港航事业发展不仅能带动周边经济快速发展,还可以提升我国内河水上交通管理能力;但是,内河船舶和港口污染问题日益严重,尤其是货物运输港口已经成为水资源污染的重灾区,与我国绿色环保发展理念不吻合。基于此,本文以内河船舶和港口污染治理为研究对象,深度剖析当前存在的污染类型,阐述污染治理存在的问题,并制定针对性的对策,旨在提升我国内河船舶和港口污染治理工作质量,为相关从业人员提供帮助。     

第十二届深水操作会议和展览会(英文)

正November 4-6,2014Moody Gardens HotelConvention Center/Galveston,TX The Deepwater Operations Conference and Exhibition is celebrating its 12th anniversary this year.This growing event will continue the tradition of excellence in addressing operational challenges involved in developing deepwater resources.We will return to the Moody Gardens Hotel and Convention Center on November 5-7,2014 in Galveston,Texas.     

The 11th International Conference on Hydrodynamics (ICHD 2014)

正19–24 October 2014 SingaporeCONFERENCE THEMES The overall aim of the ICHD Conference is to provide a forum for participants from around the world to review,discuss and present the latest developments in the broad discipline of hydrodynamics and fluid mechanics.The first International Conference on Hydrodynamics(ICHD)was initiated in 1994 in Wuxi,China.Since then,9 more ICHD conferences were held subsequently in Hong Kong,Seoul,Yokohama,Tainan,Perth,Ischia,Nantes,Shanghai and St Petersburg.Evidently the ICHD conference has become an important event among academics,researchers,engineers and operators,working in the fields closely related to the science and technology of hydrodynamics.The 11th ICHD will be held in Singapore in 2014.     

33rd International Conference on Ocean,Offshore and Arctic Engineering （OMAE2014）

正San Francisco,California,June 8-13,2014.OMAE 2014 is the ideal forum for researchers,engineers,managers,technicians and students from the scientific and industrial communities from around the world to:·meet and present advances in technology and its scientific support;·to exchange ideas and experiences whilst promoting technological progress and its application in industry·to promote international cooperation in ocean,offshore and arctic engineering.In line with the tradition of excellence of previous OMAE conferences,more than 900 technical papers are planned for presentation.Outreach for Engineers Specialty Forum This Specialty Forum is designed for students and professionals who may not be familiar with the Ocean and Offshore industry,as well as those who have just recently specialized in this field.     

Catalyzing Coastal Management in Kenya and Zanzibar: Building Capacity and Commitment

Site-based projects were initiated in Chawka Bay-Paje, Zanzibar, and Nyali-Bamburi-Shanzu, Kenya, to demonstrate the benefits of an integrated coastal management (ICM) approach for addressing coastal issues such as tourism development and enhancement of resource-dependent village economies in eastern Africa. A two-year, multidonor project used three primary strategies to make rapid, but sustainable, progress toward ICM. These included using interagency government teams for ICM planning, adopting an internationally recognized framework for ICM as a project ''road map,'' and explicitly incorporating capacity-building strategies into all aspects of the project. Within two years, integrated ICM action strategies, prepared through participatory processes, were being implemented at both sites, and both teams were working to expand the scale and scope of ICM in their nation. More importantly, the project helped create committed, capable, interagency groups that continue to work together to address urgent ICM issues.     

A simplified method for reliability- and integrity-based design of engineering systems and its application to offshore mooring systems

This paper presents a simplified method for the reliability- and the integrity-based optimal design of engineering systems and its application to offshore mooring systems. The design of structural systems is transitioning from the conventional methods, which are based on factors of safety, to more advanced methods, which require calculation of the failure probability of the designed system for each project. Using factors of safety to account for the uncertainties in the capacity (strength) or demands can lead to systems with different reliabilities. This is because the number and arrangement of components in each system and the correlation of their responses could be different, which could affect the system reliability. The generic factors of safety that are specified at the component level do not account for such differences. Still, using factors of safety, as a measure of system safety, is preferred by many engineers because of the simplicity in their application. The aim of this paper is to provide a simplified method for design of engineering systems that directly involves the system annual failure probability as a measure of system safety, concerning system strength limit state. In this method, using results of conventional deterministic analysis, the optimality factors for an integrity-based optimal design are used instead of generic safety factors to assure the system safety. The optimality factors, which estimate the necessary change in average component capacities, are computed especially for each component and a target system annual probability of system failure using regression models that estimate the effect of short and long term extreme events on structural response. Because in practice, it is convenient to use the return period as a measure to quantify the likelihood of extreme events, the regression model in this paper is a relationship between the component demands and the annual probability density function corresponding to every return period. This method accounts for the uncertainties in the environmental loads and structural capacities, and identifies the target mean capacity of each component for maximizing its integrity and meeting the reliability requirement. In addition, because various failure modes in a structural system can lead to different consequences (including damage costs), a method is introduced to compute optimality factors for designated failure modes. By calculating the probability of system failure, this method can be used for risk-based decision-making that considers the failure costs and consequences. The proposed method can also be used on existing structures to identify the riskiest components as part of inspection and improvement planning. The proposed method is discussed and illustrated considering offshore mooring systems. However, the method is general and applicable also to other engineering systems. In the case study of this paper, the method is first used to quantify the reliability of a mooring system, then this design is revised to meet the DNV recommended annual probability of failure and for maximizing system integrity as well as for a designated failure mode in which the anchor chains are the first components to fail in the system.     

含裂纹钢板复合材料修补强度和刚度数值分析

用ANSYS有限元分析软件对复合材料补片修复含边裂纹和中心裂纹钢板的强度和刚度进行了数值分析.引入相对刚度的概念,研究了钻有止裂孔裂纹的长度对损伤钢板相对刚度的影响,分析了损伤钢板刚度复合材料贴片修补效果;引入屈服载荷提高率的概念,分析了损伤钢板强度的修复效果.     

舰艇反鱼雷技术

对目前舰艇反鱼雷技术中的非杀伤、软杀伤和硬杀伤等比较先进的手段进行了阐述,并在此基础上分析研究了舰艇反鱼雷技术的发展趋势。     

混凝土道路、堆场面层裂缝的产生与防治

从混凝土道路、堆场的各个结构层分析裂缝产生的原因,并针对性地说明预防措施,阐述裂缝维修方法。     

利比亚米苏拉塔市萨瓦瓦区5000套住宅项目中心区设计

从确定符合项目实际情况的设计原则入手,通过利比亚米苏拉塔市萨瓦瓦住宅区中心区总体布局和建筑设计两个方面的设计实践,探讨了"传统、现代与文脉"这一当今时代无法回避的文化议题。并且针对具有鲜明文化、宗教和气候特征的建筑设计的特点、方法与风格进行了总结,为今后的实践提供借鉴。     

Community-Based Management for Sustainable Fisheries Resources in Phang-nga Bay,Thailand

Fishing communities, the Government of Thailand Department of Fisheries, local nongovermnental organizations, universities, the Food and Agriculture Organization of the United Nations (FAO), and FAO's Bay of Bengal Program have undertaken a partnership in management of Phang-nga Bay's coastal resources. It is the first project of its kind in Thailand, and although still in the early stages, offers insights that may contribute to our knowledge of how we can improve our management of coastal resources, including the importance of (1) building relationships within the governance process; (2) combining education, enforcement, and economic incentives to achieve compliance; (3) implementing solutions early; and (4) government support of community-based decisions. These insights reinforce trends emerging in other coastal management projects in the Asian region.