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1.
介绍海港码头钢筋混凝土建筑物腐蚀破坏的环境原因,提出在钢筋混凝土构件表面使用涂层防护的必要性,通过对应用事例的调查与分析,证明涂层防腐蚀保护的有效性,引起建设单位、设计单位对钢筋混凝土建筑物腐蚀破坏与涂层防护的重视。  相似文献   

2.
重力式墩码头是现代港口工程中常用的码头结构,具有较高的应用价值。对综合提升港口工程的功能与安全具有积极的作用。但是,在实际的重力式墩码头的应用中,存在一些应用问题,干扰重力式墩码头的功能与安全,不利于港口工程的功能体现。故此,展开对重力式墩码头的研究,分析其在具体港口工程中的应用问题,旨在遏制应用问题,突出重力式墩码头的功能,提升港口工程质量,推动航运发展。  相似文献   

3.
海港码头结构健康监测   总被引:1,自引:1,他引:0  
根据重力式码头、板桩码头和高桩码头的工作原理,结合近几年的码头检测资料,分别分析此三种型式码头结构的安全性和耐久性的表现特征和影响因素,提出了应予监测的指标.探讨海港码头健康监测实施方法,提出对重力式码头、板桩码头和高桩码头的结构健康监测实施方法和结构损伤诊断识别方法,并指出在海港码头健康监测方面值得进一步研究的问题.  相似文献   

4.
在分析钢筋锈蚀造成钢筋混凝土构件力学性能退化的基础上,根据海港码头混凝土构件中钢筋锈蚀规律及混凝土保护层锈胀裂缝宽度与钢筋锈蚀深度的关系,建立了混凝土保护层锈胀开裂前和锈胀开裂后现役海港码头钢筋混凝土受弯构件承载力评估模型,可为现役海港码头钢筋混凝土结构耐久性评估及构件修复决策提供理论依据。  相似文献   

5.
杨荣喜 《水运工程》1996,(10):89-92
福建炼油厂油码头工程总平面布置呈L型,码头的靠,系缆结构及工作平台采用分离式;码头要用钢筋混凝土圆沉箱重力墩式。圆沉箱结构采用放射形腹板,其结构受力合理,在国内首次采用。上部结构为预制少筋混凝土圈梁,圈梁内填石。2000t重的大型沉箱采用陆上预制,起重船吊运下水的施工工艺。  相似文献   

6.
结合海港码头结构升级改造的实际案例,对重力式和高桩码头的结构,划分为码头前沿线不变和码头前沿线前移两类。重力式码头在前沿线不变情况下,给出基床改造、基础前增加独立结构和以附属设施为主的综合改造3种案例;码头前沿线前移情况下给出新老结构结合式和新增独立结构2种案例。高桩码头前沿线不变情况下,给出分离式和结合式案例。  相似文献   

7.
殷缶  梅深 《水道港口》2009,(2):112-112
本刊从大连港获悉,2009年3月20日,大连鲇鱼湾畔,大连港新30万t原油码头工程首座沉箱成功安装。该码头工程位于辽东半岛、大连湾东北部,南侧紧邻大连港老30万t原油码头。该工程泊位全长446.75m,结构形式为钢筋混凝土圆沉箱重力墩式结构,  相似文献   

8.
华南海港码头混凝土腐蚀情况的调查与结构耐久性分析   总被引:21,自引:10,他引:11  
通过对华南地区C港和Z港共20年泊位进行腐蚀破坏情况的调查,对80年代是否按《海港钢筋混凝土防腐蚀技术规定》兴建的各码头的腐蚀破坏特点和原因进行了分析,并对混凝土结构进行了耐久性评估。  相似文献   

9.
曹银 《珠江水运》2001,(3):36-38
本文针对码头结构构造特点和腐蚀环境,提倡采用补加体外高强无粘结预应力筋的技术,并辅以可靠的防腐蚀损坏码头面枢施工技术可以解决海港码头高桩梁板式结构钢筋锈蚀问题。  相似文献   

10.
海港码头钢筋混凝土结构腐蚀破坏与维护方案浅析   总被引:4,自引:2,他引:2  
吴畏  范卫国 《水运工程》2000,(7):7-11,18
论述海港码头钢筋混凝土结构中钢筋腐蚀的原因,简述钢筋的腐蚀过程,钝化膜的变化及其致使混凝土保护层开裂的缘由。阐述了由钢筋腐蚀挤胀引起的钢筋混凝土构件遭受腐蚀破坏的腐蚀孕育期,腐蚀破坏期和腐蚀危害期等四个阶段的阶定和各自的主要影响因素。对局部修补加全面封闭和电化学脱盐保护两个维护方案,进行了技术经济比较。  相似文献   

11.
Errata     
正In the paper"Influence of Fouling Assemblage on the Corrosion Behaviour of Mild Steel in the Coastal Waters of The Gulf of Mannar,India"in Vol.12,No.4,Page:509,References were lost,and the two authors’biographies were identical.The correct text is shown below.We apologize to the authors and our readers for any inconvenience caused by the errors.  相似文献   

12.
13.
正St.John's,Newfoundland,Canada,May 31-June 5,2015 OMAE2015 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;  相似文献   

14.
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.  相似文献   

15.
联合作战计划和执行系统   总被引:2,自引:1,他引:1  
全球指挥控制系统(GCCS)实施当前美国海军网络中心战信息基础设施的联合计划网络。联合作战计划和执行系统(JOPES)支持GCCS实现联合计划。JOPES有两类计划:时间不限的精密预案计划生成作战计划、方案计划或职能计划;时间敏感的危机行动计划生成作战命令或战役方案。前者在和平时期创建的作战计划是后者的计划基础,加速应付危机的能力。  相似文献   

16.
Recent measurements of wave induced hull strain and flexure in RN warships are presented together with the derivation of the current design criteria for extreme hull girder bending loads. The history of the development of the shipboard instrumentation used is given and recent developments to improve the quality and ease of analysis of the data are described. An unexpectedly high transverse asymmetry in the longitudinal strains measured in destroyers is shown to be the result of a combination of vertical and lateral bending in oblique seas. Finally recent theoretical comparisons between the loading of Deep-Vee hulls and conventional UK rounded bilge hulls are presented which demonstrate the higher loading experienced by this type of hull form.  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

19.
In terms of equal sailing distances, where is the inflexion when ships depart from ports in the Asian Continent to New York via Suez and/or Panama?
The answer is China South Port Group (Hong Kong, Shenzhen and Guangzhou).  相似文献   

20.
Despite the many socio-economic similarities between Sweden and Norway, differences in jurisdiction, organisation, cooperation, and financing of long-distance passenger train and coach services have led to the development of four distinctively different ways of serving the markets. This paper describes how the train and coach markets have developed in the two countries, with emphasis on regulatory and industrial structure and a couple of performance variables.Looking at passenger rail, both countries separated infrastructure from operation over a decade ago. However, while Norwegian rail is characterised by an almost monopoly supplier, rail services in Sweden are partly decentralised to the responsibility of county authorities and are widely subjected to competitive tendering. The rest of the network is about to be opened up for on-the-track competition. Swedish Rail (SJ) has spent the last decades consolidating its core business (passenger rail) and sold out its other businesses. In contrast, the Norwegian state rail (NSB) has expanded its business to become a major bus operator and property owner, with extensions also into the Swedish market.The coach industry was more recently deregulated in both countries. The Swedish coach market is dominated by privately owned companies operating services to and from Stockholm. In Norway, state-owned NSB is a major coach operator on medium distance routes, and is also the largest partner of Nor-Way Bussekspress which totally dominates long-distance coach services. Further, the Norwegian coach market is characterised by cross-ownership and cooperation which has enabled an extensive route network which covers most of Norway.We find distinct differences in achievements in the two modes and in the two countries. Swedish rail services have succeeded in winning market shares and in renewing and developing both infrastructure and service levels to a greater extent than the Norwegian model. On the other hand, the Norwegian coach market seems to be more developed and efficient compared to its Swedish counterpart.The paper concludes with a discussion on the possible links between the different approaches and the performance observed, with the aim to stimulate further and more detailed research on some important issues.  相似文献   

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