内河码头桩基施工平台的投标方案对比分析

内河码头水工建筑物常采用高桩结构,码头桩基施工工程量大,而桩基施工平台的安全、可靠是桩基施工快速完成、投标价格具备竞标优势的重要保障。结合某内河高桩码头投标阶段桩基施工平台投标方案比选实践,提出一种内河码头桩基施工平台的投标方案,供类似项目投标参考。     

船舶撞击力作用下高桩码头桩基承载力的试验

为加强港区高桩码头安全管理,对码头泊位进行靠泊试验,研究船舶撞击力下高桩码头的桩基承载力,同时对码头桩基承载力进行复核计算,结果表明:无损检测码头桩基基本完好;在船舶撞击力作用下,码头桩基承载力满足规范要求,安全性较好;船舶靠泊平稳,码头能够承受所观测吨级减载船舶的荷载。     

高桩码头水上沉桩施工质量控制要点分析

高桩码头是目前较为常见的几种码头结构形式之一,主要由桩基和上部结构两部分组成。桩基施工作为整个高桩码头的基础工程,其施工质量的优劣将直接影响高桩码头后续施工过程中的进度及质量控制。朱家桥外贸码头桩基工程无论是从桩基正位率还是桩基承载力方面,均达到了较高的施工水平。现根据本工程桩基施工的整体过程,对高桩码头桩基施工质量控制要点进行分析。     

高桩码头桩基施工过程的质量控制与技术要点分析

高桩码头桩基施工困难大,技术含量高,若不能良好控制其施工质量,将严重影响码头作用的充分发挥。为此,文中对高桩码头桩基施工的设计要点,高桩码头桩基荷载的计算,高桩码头桩土相互作用的非线性问题,以及其施工质量及技术控制要点分析过程的质量控制与技术要点进行了简要分析。     

全直桩高桩码头平联撑作用影响分析

对自由高度较大的全直桩高桩码头,桩基设计是码头设计的关键。以某工程设计为例,对全直钢管桩高桩码头桩基增设2种平联撑措施前后的设计进行对比分析,研究平联撑对码头平台受力的影响特性。结果表明合理的平联撑可有效减小排架位移、减小桩顶弯矩,使桩身弯矩更为协调。     

阜阳港某港区综合码头设计分析

通过对阜阳港某综合码头工程地形地质、水文泥沙等自然条件、设计船型、工艺布置、码头使用要求等特点的分析,从总平面布置、水工结构方案比选、桩基选型等方面阐述内河码头工程设计内容,提出结构安全稳定且符合使用要求的高桩框架结构作为推荐方案。结合淮河干流船型多,吨位大小不一、高低水位差变化大且快、码头设置多层系缆、河滩地桩基施工等因素,详细介绍高桩框架结构码头设计的重难点和要点,对高桩框架码头排架间距及桩基选型、桩径和桩长计算、结构内力计算等进行了分析论述,并给出合理化建议,可为类似码头工程设计提供参考。     

高桩码头桩基夹桩稳桩抗风浪技术应用

以某高桩码头为例,针对外海及台风影响的环境下,沉桩完成后桩基安全措施展开探讨,对高桩码头的桩基夹桩、稳桩措施进行阐述,为以后类似工程提供借鉴和参考。     

钢管桩超深入岩陆上打桩工艺的研究与应用

梁板式高桩码头作为中南美洲地区广泛采用的码头结构型式,其有着结构轻,受力明确,减弱波浪的良好效果。钢管桩桩基作为码头承载受力终端,桩基的入岩深度及承载力对码头整体质量起着决定性作用,尤其是在10万吨以上的码头中,桩基具有入岩深度大、桩基承载力高等特点,但往往受地质影响,钢管桩桩基在打设过程中很难同时达到这两项指标,打桩过程中受岩层影响易出现桩底变形及无法打设至设计底标高的问题。本文以巴拿马科隆集装箱港口(PCCP)项目为例,主要介绍高桩码头桩基在需要超深入岩的施工中,采用陆上预旋挖再打桩的工艺,为高桩码头钢管桩超深入岩施工提供了新思路,为类似工程提供了借鉴意义。     

浅谈高桩码头桩基设计及施工特点

本文对高桩码头桩基设计和施工进行分析,根据高桩码头特点优化桩基设计参数,结合施工技术优化桩基布置方案,提高单桩承载力,缩短施工周期,使得施工效果显著,确保高桩码头设计和施工质量。     

高桩码头健康监测系统中桩基应变监测位置的选择与实施

桩基关键位置的应变监测是结构健康监测系统中一个不可缺少的监测参数。本文根据沿海高桩码头结构的运营荷载分布规律,分析了高桩码头结构桩基的荷载效应特点;指出了高桩码头结构健康监测中桩基应变监测的关键位置,并选择天津港某高桩码头为依托工程,实施了桩基应变监测传感器的安装与保护,对传感器选型、性能指标要求及相应监测传感器的安装实施方法进行了论述,研究成果可为沿海高桩码头的结构健康监测系统建设提供技术参考。     

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.     

Journal of Marine Science and Application 2014 Sum. Contents

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第34届海洋、离岸及极地工程国际会议(英文)

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;     

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.     

Recent progress on wave induced loading measurements in warships

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.     

联合作战计划和执行系统

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。     

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.     

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.     

Eastbound or westbound ?

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）.     

Impact of regulation on the performances of long-distance transport services: A comparison of the different approaches in Sweden and Norway

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.