三峡船闸通过能力的研究

分析三峡船闸通航现状和船闸拥堵造成的影响,预测三峡船闸通航需求及船闸实际最大通过能力,提出三峡船闸通过能力不足问题的解决办法及相应对策建议.     

葛洲坝一号船闸与三峡船闸单线匹配运行分析

2006年9月15日至2007年4月底,三峡船闸实施完建施工,实行单线通航;葛洲坝二号船闸于2007年3月1日至4月19日进行为期50天的计划性大修,葛洲坝只有一号船闸和三号船闸通航。在三峡船闸与葛洲坝二号船闸交织施工期间,两坝船闸通过能力均不能满足船舶过闸需求,为有效应对船闸通过能力不足的现状,三峡通航管理部门组织开展     

三峡船闸试通航回眸

三峡船闸一年的试通航运行表明,翻坝转运适应滚装运输需要,过闸船舶呈现大型化趋势,通航运行保持在较高水平。为管好用好船闸,最大限度地发挥其效益,对试通航期间暴露的一些问题,提出解决办法。     

新建长江三峡通航水梯的设想

三峡船闸货物通过量提前20年达到设计值,现有船闸通航压力越来越大。为了保证三峡大坝通航能力与经济发展相适应,文章利用相关理论与数据论证了新建三峡通航设施的必要性,提出再建长江三峡通航水梯的初步构想。     

三峡枢纽过闸货运量预测分析及对策研究

三峡枢纽工程建成发电通航后,改善了长江上游库区航道,极大促进了长江上游水路货运市场的发展,而三峡船闸逐渐不能满足船舶通行的要求,成为长江上游水路货运市场发展的瓶颈,本文通过对三峡船闸现状的分析,三峡过闸货运量的预测分析,三峡船闸通航能力的分析,提出解决三峡船闸通过能力不足对策和建议,供行政主管部门决策参考。     

加强三峡通航技术研究，促进航运高质量发展

随着三峡枢纽的建成,上游库区航道明显改善,过闸货运量快速增多,船闸通过能力和过闸需求间的矛盾日益突出,三峡通航成为制约长江航运进一步发展的节点。从船闸快速检修技术、船闸运行组织、升船机运行维护等方面提出技术研究方案,以进一步提高三峡、葛洲坝船闸、升船机通过能力,开创三峡通航新局面。     

人工消雾技术在三峡船闸的应用研究

本文通过对人工消雾技术在三峡船闸的应用研究,从而改善船闸上下游附近水域的通航条件,提高能见度,使闸室内滞留的船舶得以疏散,对保障三峡船闸通航设施的安全具有重要意义。     

为三峡永久船闸通航作好准备

按三峡工程施工进度安排,2003年6月永久船闸通航.三峡永久船闸是当今世界上水头最高、规模最大、运行工况极其复杂的通航建筑物.凡事预则立,从现在起,应当以交通航运部门管理三峡船闸为前提,周密细致地做好通航前的各项准备工作,从而最大限度地减少滞航、断航损失.     

三峡及葛洲坝船闸单向同步进出闸与导航靠船设施布置

三峡及葛洲坝船闸目前采用单向同步进出闸运行方式,该方式在正常通航条件下、大风大雾通航条件下的通航调度和船闸运行对船闸上、下游导航靠船设施布置提出了新的要求。本文针对船舶单向进出闸条件下导航靠船设施布置提出了建议方案和措施,为最大限度地提高两者之间的匹配和适应程度,提高船闸运行闸次和通过能力,以及三峡新通道的建设提供参考。     

浅析三峡船闸通航状态评价方法

本文构建了基于船闸自身可靠性、运行管理高效性和服务对象畅通性等三要素的评价指标体系,提出了三峡船闸通航状态是指三峡船闸在自身设备可靠性、管理调度和外界环境影响下,对航运产生影响作用的船闸运行状态。     

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.     

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。     

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。     

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.