滨海水利枢纽工程建设中的变更处理

做好工程变更处理是工程建设管理的中的一项重要工作。本文对工程变更处理的范围与内容以及变更处理权限、处理原则、处理时限、报价等进行了阐述,介绍了滨海枢纽工程建设中业主加强工程变更控制的经验。     

关于公路工程建设中业主与监理之间关系的探讨

通过对新疆兵团农九师近年来公路工程的项目管理实践,概述了在工程建设实际中处理好业主与监理关系的重要性,并就如何处理和协调两者的关系进行了阐述,指出只有形成科学、高效、务实的工程监理体制,才能配合业主方达到对工程的有效控制。     

里下河地区灾后重建工程建设业主对监理的管理

为适应工程建设的需要,加强灾后重建工程建设管理,我县水行政主管部门自工程建设以来全面推行"项目法人责任制、招标投标承包制、建设监理制",为主要内容的"三项制度改革",取得了较好的成效。在防洪工程建设管理中监理工程师依据施工合同直接实施对工程的管理有着不可替代的作用。因此业主对监理的管理则显得十分重要了。如何加强对监理的管理,充分发挥监理的作用?这是业主急待解决的问题。通过灾后工程建设的实践认为:一要选择素质较高的监理单位和总监理工程师;二要依据规范和委托合同全面授权;三要加强管理,全面监督;方能充分发挥监理的作用。     

做好监理工作 打造优质工程

监理单位（也称咨询中心,下同）是专业化、社会化的中介服务机构,受业主的委托,以自身的专业技术、管理技术有效地控制工程建设项目的进展、质量、投资,公正地管理合同,使工程建设项目的总目标得以最优实现。     

对当前监理工作的几点看法

监理单位是专业化、社会化的中介服务机构,受业主的委托,以自身的专业技术、管理技术有效地控制工程建设项目的进度、质量、投资,公正地管理合同,使工程建设项目的总目标得以最好的实现。监理制度在西方已经有较长的发展历史,并已成熟完善。FIDIC制定的《土木工程施工合同条件》已经为国际承包市场普遍认可和广泛应用,对业主、监理工程师、承包商的责任、权利进行了详细的规定,是工程建设项目有序进行的保证书。我国也开始参照执行,并以形成适合我国的一套监理体制。由于我国的建设监理制起步较晚,计划经济的体制决定了我国监理制度从一建立就有其本身的特点,没有形成社会化的监理模式,至今仍存在着误区。     

园林工程招标中业主方的风险分析

园林工程不仅要满足一般工程建设的使用功能的要求,而且要满足园林造景的要求,还要与园林环境密切结合,是一种自然和各类人造景观融为一体的工程建设。园林工程建设这些特殊的要求决定了园林工程招标工作比一般工程更为复杂,业主在招标过程中更应考虑可能存在的工程风险,并采取积极的措施予以避免。     

工程建设中的激励因素分析

用目标激励理论来分析工程建设中的激励因素．以及不同合同模式对业主与承包商的激励作用，以期根据工程性质的要求适当地选择合同模式，并能在履约过程中应用一些激励和约束措施保证工程的成功。     

天津中北港湾工程建设监理有限公司

<正>天津中北港湾工程建设监理有限公司创立于1990年,是我国水运工程系统首批工程监理单位之一,是中交第一航务工程勘察设计院有限公司(中交一航院)选派经验丰富的工程技术、经济和管理人员组建的全资子公司,1996年经交通部核定批准获水运工程监理甲级资质。中北监理以全面周到的服务、诚信科学的态度和开拓进取的作风贏得了业主的赞誉。     

关于港口建设重点工程实行项目管理的探讨

以天津港为例，受业主委托，港口建设公司设置项目管理部门，对项目的水工、土建、机电等专业统一管理；协调各有关部门对工程投资，进度、质量进行严格控制，保证了近年来天津港重点工程建设任务顺利完成。     

AP1000项目非A1类设备竣工文件管理

AP1000三门、海阳一期工程建设渐近尾声,非A1类设备竣工文件接收、整理和提交已进入高峰阶段,设备竣工文件管理工作的特点和瓶颈日益显现。本文通过分析现阶段AP1000项目非A1类设备竣工文件管理工作的特点和存在问题,总结AP1000项目设备竣工文件管理经验,探索以周期长、业主多为特点的大型建设项目中设备竣工文件的科学管理道路。     

我国船用舷梯的技术现状和发展趋势

对我国船用舷梯的技术现状进行了归纳、分类与简要说明,并简单介绍了目前船东对各种舷梯的使用情况,同时对我国船用舷梯的发展趋势通过事实进行了简述.     

30000DWT多用途重吊船的开发与研究

本文论述了某航运公司的30000DWT多用途重吊船的开发与设计。船型设计既借鉴了其它航运公司同类型船的优秀设计，满足了公司的业务需求。这类型船将提高船队的竞争能力。     

The ship owners' stance on third party ship management: an empirical study

The last four decades have seen the rise of third-party ship management and its evolution into an industry in its own right. Specifically, the present study reviews independent ship management with a view to identifying those contemporary parameters, relating to several environmental forces that can be considered to be conducive to the employment of professional ship managers. The focus of the investigation is on the comparison of two traditional maritime centres, Greece and the UK, which have been chosen after a thorough selection process and found to serve in the best possible way our research objectives. An analytical examination of the ship management sector in Greece and the UK is undertaken looking into the ship owners' viewpoint on a number of key issues. The analysed data yielded some very interesting results.     

High-resolution surveys of the biogeochemistry of the New England shelfbreak front during Summer, 2002

We present the observations from a pair of field experiments at the New England shelfbreak front in June and August of 2002, each consisting of 14 cross-frontal surveys using the Lamont Pumping SeaSoar. Measurements of the front's physical, chemical, and bio-optical characteristics were made at high spatial and temporal resolution. The front, based on water-column hydrographic distributions, was found within a few km of the 200 m isobath during both cruises. We present here composite sections, based on averages of individual sections shifted in space to a common frontal location, of the cross-frontal distributions of these properties as a measure of the mean state of the front in both June and August. The observations show the familiar temperature, salinity, and density distributions of the summertime front, dominated by surface thermal heating. Nutrient and bio-optical distributions show the combined effects of water-mass exchange and biological processes. T, S, silicate, and phosphate distributions are suggestive of cross-frontal exchange of slope- and shelf waters, although transport mechanisms and pathways are not apparent. These properties, along with nitrate and optical measures of the suspended particle distributions, show vertical displacements of isopleths as the front is approached: property contours slope upwards toward the front from the shoreward side, and downwards toward the front from the seaward side. Again, actual water-movement pathways are not constrained by these suggestive patterns. Bio-optical distributions show elevated indicators of photosynthetic efficiency both seaward and shoreward of the front, but the front itself is a minimum in biomass. Accumulation of photosynthetic biomass appears to be controlled primarily by nitrate scarcity in waters within and above the pycnocline. At the base of the pycnocline, light limitation appears to be the controlling factor, although the base of the euphotic zone is deeper than the biomass maxima and the base of the pycnocline. Mechanisms explaining this phenomenon are unclear, but tenuous evidence suggests low stratification at the depth of the 1% light level may not allow phytoplankton to optimize for the low-light, high-nutrient conditions at depth. Cross-frontal differences in nutrient and bio-optical parameters, particularly in August, suggest distinct phytoplankton assemblages, and the presence of calcite-forming or nitrogen fixing groups to the community structure, especially in very shallow waters across the front and in pycnocline waters seaward of the front.     

面向复杂装备AR辅助维修的混合跟踪技术研究

装备维修是生产制造、作业运转的基础,特别是在船舶、航空等领域。由于在维修过程中装备结构复杂、维修人员经验技术不足和缺少直观维修手段导致容易导致维修效率低下和操作出错。因此,通过研究基于增强现实的装备维修方案,直观交互地进行维修作业,能够有效地提升维修的质量和效率。由于装备体型较大,结构复杂,给跟踪定位带来了新的困难,针对实际的工程需求,创新性地将主流方法进行结合,提出了多Marker和ORB-SLAM混合跟踪的方法。通过二次调整多Marker定位结果的动态权值,提高局部定位维修的精度和可靠性。分析比较现有的特征点算法,选择ORB-SLAM作为方案,实现全局的定位和导航,对维修过程给以指导,并设计开发装备诱导维修系统,为大型复杂设备地维修提供了通用解决方案。     

港口系统设备钢轨连接技术

港口系统设备一般外型尺寸和质量较大，多采用截面积较大的起重机钢轨作为行走轨道。根据港口系统设备使用特点和工程施工现场条件，结合码头和堆场结构，借鉴轻轨和重轨的无缝连接技术，对各种焊接工艺进行比较，分析钢轨的材料组成和焊接过程内部组织变化，推荐一种保证设备使用安全和操作人员舒适度、连接质量稳定、便于维护、操作简便、满足港口系统设备钢轨安装现场要求的连接方法和工艺,有助于实现工期目标，可推广应用于矿山、港口、电厂、码头及堆场等大质量机车或起重设备的钢轨连接。     

防波堤及护岸越浪研究综述

近年来防波堤越浪方面的相关研究,分别在越浪影响因素、越浪量计算公式推导论证、越浪数值模拟与越浪量标准4个方面进行归纳总结.已有成果表明:1)越浪影响因素的研究多是集中于常规因素,包括波高周期,堤顶高程,坡肩宽度,护面块体,而对水流、风速、波浪谱以及水的性质等其他因素研究相对较少;2)越浪量计算公式研究中主要集中在影响越...     

多因素数学模型在温州瓯江口浅滩围涂工程研究中的应用

建立了波浪、潮流、盐度、悬沙、底床冲淤等多种因素数学模型,在模型验证的基础上,对瓯江口温州浅滩围涂工程海区的波浪场、潮流场、盐度场、悬沙场、底床冲淤场进行了数值模拟研究,对温州浅滩围涂工程对瓯江泄洪、瓯江南北口分流比、乐清湾养殖业、瓯江口港口航道及状元岙深水区、南口口外滩地的影响进行了分析论证。分析研究结果表明,温州浅滩围涂工程是可行的。     

How much can public private partnership really do for urban transport in developing countries?

A few cities in some of the larger developing countries in Latin America and Asia have made increasing use of multi-year concessions or franchises, competitively awarded to private companies, for construction and operation of urban transport infrastructure and for provision of public transport services. In view of the strong prospective growth of developing-country cities with large transport needs, and the rise in the emerging economies of potential new sources of private capital, it is important to see how effective PPP has so far been in this area. The experience is analyzed principally by thorough comparative review of what has actually happened for some of the main users to date: Bogotá, Santiago, São Paulo, Seoul, and several cities in both China and India. Despite delays and mistakes that have been made in development of most of the projects, the overall results, already delivered and in prospect, are very positive and urban public transport is benefiting substantially, with significant side effects on poorer people's access to work and to services, air pollution levels and road accident rates. The widest and most important advantage of the PPP arrangements, as compared with more conventional short-term contracting, is found to be the innovations, technical and managerial, developed, and, in particular, the mutual capacity building of the countries' private and public sectors and their more effective interaction. The experience in the six countries covered suggests that other developing-country cities may be best assisted to develop sound urban transport PPPs more rapidly through provision of help on chosen items among 7 elements that have proved particularly crucial but sometimes weak in the projects reviewed: Civic consultation systems, Land-use/Transport strategic planning, Land/property market management, Monitoring systems, Progressive policies, Economic regulation, and Public institutional framework for PPPs.     

广西沿海重力式码头病害分析

采用现场调查的方法,统计分析广西沿海重力式码头病害,主要有裂缝、水工结构附属设施病害、结构破损、不均匀沉降与位移、漏砂、基床淘刷等,讨论病害与泊位吨级、运营时间的关系以及病害的成因与危害,提出病害防治措施。