公路隧道施工现场监控量测

隧道工程是一项隐蔽工程,对其进行量测监控已逐步成为隧道工程的先导技术,成为安全施工与科学管理不可缺少的重要手段。文中结合赚宝隧道加固现场实践,阐述了公路隧道施工监控量测的原理、目的、内容和主要方法,并对后续施工提出了合理的建议。     

低碳生态理念在公路建设管理中的实践与思考

低碳绿色公路是以低能耗、低污染、低排放为标志的节能、环保型公路,为推进低碳绿色公路建设,镇江公路部门积极探索低碳生态理念在公路建设管理中的应用,主动实践低碳公路、绿色交通。文中结合镇江公路低碳生态建设实际,对目前低碳生态建设遇到的主要问题进行分析,阐述了公路低碳生态建设的价值与重要意义,并对实施公路低碳生态建设提出了一些对策。     

浅析我国当前公路的机械化养护

随着我国公路里程的增加和等级的提高,公路养护任务会越来越重,对公路服务水平的要求也越来越高。传统的公路养护方法已远远不能适应新形势下公路养护的需要,公路机械化养护愈加显的迫切和重要。本文介绍了公路机械化养护的内容及养护机械,分析了我国与发达国家的养护机械的差距。初步探讨公路机械化养护的基本方法和机械化养护新技术。     

公路部门财务管理探析

随着公路建设的发展,公路企业的壮大,公路部门的财务状况也需要不断完善,本文就公路财务管理的目标,原则,出现的问题以及应对策略展开讨论。     

地质选线在山区公路中的应用

山区公路选线是公路造价控制的重要环节,近年来,山区公路时常发生边坡坍塌、崩塌、滑坡等地质灾害,主要是在建设中选线和边坡防护上没有引起足够的重视。结合贵州省铜仁地区迓驾至大兴公路改扩建工程浅谈地质选线在山区公路中的应用。     

公路养护管理探讨

通过对公路养护工作定义的探讨,对公路养护管理内容作了介绍,并从员工素质、养护管理、养护机械的使用等方面论述,阐述了提高我国公路养护管理水平的对策以提高公路使用周期内的服务质量,促进我国公路的健康发展。     

区域生态公路建设指标体系的初步构建

针对公路建设中发生的生态环境问题,以烟台公路生态路网建设为模板,构建区域生态公路建设的指标体系,对生态公路建设提出了系统性的解决方案。     

甘肃省公路风沙灾害防治研究

甘肃省是风沙危害严重的省份之一,通过对甘肃省公路沙害情况调查,根据风沙对公路的危害和特征以及风沙灾害发育程度,将公路风沙灾害类型划分为沙埋和风蚀,并介绍了嘉安一级公路沙害典型路段防治措施,作为甘肃省公路地质灾害区划研究的基础。     

关于上海造船工业管理体制改革的探讨

随着全党、全国工作重点的历史性转变,造船工业企业管理问题,目前也越来越为人们所重视。许多造船厂和科研单位纷纷投入力量,开展了科学管理的研究,试行了各种科学管理方法。科学管理是指符合客观经济规律和自然规律的管理,是要人们按照社会化大生产的特点和要求组织生产经营活动,为满足社会的需要而生产更多的优质产品。造船企业属综合性工业,船舶产品类型复杂,工种多,工序交叉,材料、设备配套面广,建造周期长,有很多可变因素,因而在生产中尤其需要实行现代化的科学管理。造船工艺与造船企业管理关系密切。工业生产科学管理的日趋完善,是现代技术顺利发展的必要条件;而技术上的新发展,则要求改变现代工业生产的组织管理。为此,从去年开始本刊已为这一学科开辟了专栏。本期集中刊登的这十五篇有关船厂企业管理方面的文章,是去年九月中国造船工程学会管理科学委员会成立大会上宣读的部分论文,是经会议评选向本刊推荐发表的。     

公路通行能力分析在实际工程中的应用

公路建设工程中,对于公路通行能力的分析和计算对于公路设计起到极其重要的作用。通过对公路通行能力的分析和计算,可以对公路类型、车道数及交织长度等的选择提供参考、评估既有公路对交通的承受能力及对不同环境条件下交通运行情况进行评价。本文通过对青海省某高速公路高架桥路段的公路通行能力的计算结果分析,说明公路通行能力分析在实际工程中的应用。     

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;     

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。     

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）.     

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.     

桥梁防撞设施物理模型试验

物理模型试验是预报防撞设施所受撞击力及优化设计方案的主要方法之一。结合杭州湾大桥柔性防撞设施及东海大桥独立式防撞体设计方案,阐述了船—防撞体撞击试验的基本原理、方法、试验方案及相关试验结果。提出了柔性防撞系统的优化方案。试验结果表明,该方案经济有效,可供预报类似桥梁防撞设施撞击力时参考。     

印尼某电厂码头水工建筑物设计

印尼某电厂项目码头水工建筑物包括码头、防波堤和护岸等主要组成部分。在该项目水工建筑物的设计过程中,综合考虑当地的自然条件、施工能力和材料来源等因素,不断优化结构选型和结构断面。根据不同使用要求,护岸分别采用直立式和斜坡式2种结构型式,推荐的设计方案节省投资、施工方便,可供同类工程设计参考。     

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.     

开放式数据挖掘系统模型

目前国内已经出现了少量的数据挖掘相关产品。国内数据挖掘软件无论从数量还是质量上比较，都与国外软件存在着较大的差距。随着数据仓库技术的普及，数据挖掘应用的需求越来越强烈，如何缩短这种差距，研发数据挖掘软件产品成为国内业界的一个重要问题。通过引用目前国际通用数据挖掘标准技术来构建开放式的数据挖掘系统模型，该系统模型从可扩展性、可重用性、易用性等方面得到了加强。