载荷板的尺寸效应对地基载荷试验的影响

在地基承载力检验方面,静载荷试验是目前各种方法中最常规,最有效,应用最为广泛的一种检测手段。通过载荷试验确定地基承载力时,对试验结果的准确性有着许多的影响因素,例如:沉降的稳定性、地基土均匀性、载荷板埋深、载荷板的尺寸等,而本文针对不同尺寸的载荷板对地基承载力检测时的影响进行了研究。     

船舶纵向下水试验及支座反力的计算

本文给出了Ａ、Ｂ两船纵向下水的试验结果及支座反力的计算方法，计算结果与试验结果相当吻合，可在校该核纵向下船舶强度时用于确定载荷。     

静载荷试验试桩曲线分析方法的探讨

详细分析了静载荷试验桩顶沉降的影响因素，对无明显陡降段试桩曲线成果分析方法进行了深入探讨．指出可采用判据计算值所对应的桩顶荷载作为桩的极限承载力近似值，并给出了判据量化表达式。     

船体结构局部强度设计中的砰击载荷确定方法

在分析船舶砰击载荷力学特性的基础上,首先对各种船体砰击载荷设计方法进行比较和开展了压力不均匀系数的研究。然后从工程实用的角度出发,引入和扩展了砰击压力"折减系数"的概念,将砰击压力转化为与结构应力响应等价的均布静压力,使结构仍可按静力强度计算方法来进行设计和校核。在此基础上,提出了船体结构局部强度设计中确定砰击载荷的思路,给出了在砰击载荷作用下各种局部结构强度计算的方法与步骤。通过实例应用和分析,验证了方法的实用性。该方法可应用于船体局部结构的设计实践。     

静力触探CPT在水力吹填砂土地基承载力评估中的应用

为了更好控制科威特LNGI工程水力吹填砂土地基质量,合理评估水力吹填砂土地基处理后的承载力,选取基于CPT的3种经验公式,计算满足设计承载力200 kPa作用下所需的最小锥尖阻力qc值。结果显示,Bowles(1996)法和BS EN1997-1:2004 Annex D推荐法计算的最小qc值与水力吹填质量等级有关,但两者结果较接近,而EslaamizaadRobertson(1996)法计算的结果较小,仅为3. 8 MPa。基于保守考虑,最终结果取前两种方法平均值中的最大值7. 5 MPa。同时基于现场实际,在地基处理后预先进行CPT检测,得到平均锥尖阻力远大于计算验收值,并由大型载荷板ZLT试验验证了满足长期沉降的设计承载力。可见,在地基处理后可预先采用CPT对处理后地基处理承载力进行评估并辅助少量大型ZLT试验进行验证,可有效对地基承载力进行验收。     

15000kN·m能级强夯置换处理软弱地基效果分析

依托广西钦州港区某地基处理工程,基于夯前夯后多道瞬态面波测试和夯后动力触探试验、置换墩着底检测及静载荷试验,对15000kN·m能级强夯置换法处理软弱地基效果进行了检测。检测结果表明:强夯置换后,地基承载力明显提高,复合地基承载力大于200kPa,压缩模量大于20MPa;15000kN·m能级强夯置换有效加固深度7.0~10.0m,平均有效加固深度9.0m左右;强夯置换后,置换墩体与墩间土间、强夯置换区与周边的强夯区间均存在明显的不均匀性,设计时应充分考虑到强夯置换后地基土的不均匀性。     

门机荷载作用下高桩码头结构响应试验研究

通过对高桩码头泊位的码头结构进行调查,对门机荷载作用下的码头进行结构响应试验,同时对码头结构的承载力、裂缝宽度、挠度和抗裂等进行复核计算,结果表明:在门机荷载作用下,门机轨道梁应变未达到混凝土开裂极限,裂缝宽度变化可忽略,横梁混凝土应变未达到混凝土开裂极限;在设计荷载作用下,码头门机轨道梁抗弯承载力满足规范要求;剪力荷载作用效应设计值大于承载力设计值,不满足规范要求;最大裂缝宽度计算值大于裂缝宽度限值,不满足现行规范对裂缝宽度的限制要求;挠度计算值均小于挠度限值,满足规范要求。     

船体冰载荷的反演确定法（英文）

由于船体结构受到的外部载荷及载荷承受能力决定了船体结构的损伤程度，因此船舶在冰区海域航行的安全性与其受到的冰载荷直接相关。本文根据极地科考补给船S.A. Agulhas II的原型测量数据，给出了两种艉肩部冰载荷的反演确定方法：一种为根据试验建立的影响系数矩阵法来确定肋骨处受到的冰载荷，另一种为利用Tikhonov正则化建立的三种离散方式来确定外板区域受到的冰载荷。计算结果表明，这两种方法均能克服数据处理过程中的病态性并得到船体结构的冰载荷。     

港口工程软弱土地基承载力检测的综合评判方法

依据长江中下游某港口软弱土地基处理工程,结合传统地基承载力的评判方法,提出静力触探普查,载荷试验验证的综合评判法进行地基承载力检测评定,该法可以准确、经济、高效评判地基承载力。     

土工格栅加筋垫层的设计和应用

各种加筋材料与土的界面摩擦特性试验结果表明：用经编土工格栅作为加筋材料的砂砾垫层．其加筋效果最好。在分析国内外加筋地基承载力计算方法的基础上，提出了加筋垫层的实用计算公式．并以泉州市朝天门城楼工程的土工格栅垫层地基为例进行计算，通过现场载荷试验加以检验。     

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.     

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。     

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.     

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.