首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
This paper describes the most important factors influencing the marine regime of the Bosphorus, and present and explain the measurements taken up till now in the Bosphorus. It also describes the other constraining factors influencing the immersion processes in the area, and discusses the background for the final requirements to the Contractor related to how to control and predict the marine conditions. It also describes in broad terms the results of the initial investigations performed by the Contractor regarding the immersion process as of the time of writing this paper.  相似文献   

2.
Istanbul is one of the most famous historical cities in the world. However, the project alignment selected as the best of a range of alignments cannot avoid passing beneath the historical and cultural heritages of Istanbul as well as under ancient and densely inhabited areas of the city. This paper will explain some of the challenges related to the bored tunnels.

Historical buildings are vulnerable. Yet many existing residential and office buildings are old and constructed on minimal foundations. As a consequence, it is vital that any drawdown of groundwater and any ground settlements have to be minimized.

In addition, the connection between the immersed and bored tunnels will be made directly and totally underground, without the usual intermediate shafts and beneath the deep waters of the Bosphorus Strait. This operation needs the utmost control of the tunnel excavation face to ensure its stability and to minimize water ingress. Based on such considerations, tunnel excavation by tunnel boring machine (TBM) using a slurry shield and having the ability to operate under high pore pressures was recommended as the method of excavation for the main running tunnels.

The paper will explain how the design team from Avrasyaconsult – the Employer’s Representative – arrived at the final minimum, specific and functional requirements of the bored tunneling works which are to be carried out using the ‘FIDIC EPC/Turnkey Project’ conditions.  相似文献   


3.
Marmaray immersed tube crossing, located at the entrance of Bosphorus Strait of Istanbul, will be one of the unique infrastructure facility bringing great engineering challenges in immersed tunnel technology. The employer requires a minimum design life of 100 years for the immersed tunnel structure that will be under exposure of the highest saline water pressure at the depth of 58 m that has never been experienced yet in the history of immersed tube systems. Since the structural concrete is to be subjected to extremely aggressive environmental conditions during expected long-term service life, the quality assurance of the immersed tunnel has been ensured by setting a series of effective technical requirements taking into account the potential durability risks and predictive models in design phase, outputs of pre-testing activities and potential difficulties at construction period. The objective of this paper is to present some major steps involved in concrete works of this megaproject by giving the highlights from laboratory scale researches to the execution of the work at construction site.  相似文献   

4.
For an organization to create optimal value from its investment in projects there must be a clear link between the outputs created by the projects and the requirements of the organization's business strategy. This means that organizations that have a structure in place for aligning the project deliverables with their organizational goals will be better placed to realize their investment in projects, and achieve the value defined by their business strategies. This paper examines existing research, ideas and concepts of project governance and enterprise project management, and offers a framework to build on current theory development and practice. Synthesizing existing literature of project/program management, governance and portfolio management, this paper proposes four key elements to improve the performance of projects and hence create value for organizations. These four elements are (1) portfolio management: focused on selecting the right projects and programs to support the organization's strategy, and terminating ones that no longer contribute to the business success of the organization; (2) project sponsorship: providing the direct link between the executive and the project or program manager, focused on the whole project lifecycle; (3) Project Management Office (PMO): providing oversight and strategic reporting capabilities; (4) projects and program support: the effective support and management of projects and programs are the measures of an effective governance system. The purpose of the framework described in this paper is to provide guidance to organizations in the development of effective project governance to optimize the management of projects.  相似文献   

5.
国际项目管理中的项目控制   总被引:1,自引:0,他引:1  
李榕 《山西建筑》2009,35(24):210-211
从成本控制和进度控制两方面探讨了国际项目管理中的项目控制,指出通过项目控制在项目实施过程中对项目的进度和成本进行跟踪、分析和预测,可以给决策层提供一个全面的项目进展情况,以确保项目管理目标的实现。  相似文献   

6.
工程项目管理及基本原理概述   总被引:1,自引:0,他引:1  
王贵明 《山西建筑》2004,30(13):134-135
对工程项目的含义、特征、建设周期等内容进行了介绍 ,从目标系统管理、过程控制管理和信息技术管理三方面 ,阐释了工程项目管理的基本原理 ,以期对工程项目管理有全面理解。  相似文献   

7.
耿鹏云  鄂广全 《山西建筑》2011,37(34):220-221
详细介绍了数字化工程管理平台在变电站工程造价管理中的应用,通过在变电站数字化三维管理平台设置造价管理模块,完成工程造价的全过程管理,使工程造价管理达到数字化信息化,并可以显著提高工作效率。  相似文献   

8.
刘志伟 《山西建筑》2003,29(7):186-187
详细介绍了项目概念的四要素 ,针对项目管理的特点 ,提出在项目管理各阶段的基本内容 ,并指出项目管理是一种专业知识和方法体系 ,它有相对统一的内容、要求和技术  相似文献   

9.
史冬虹  崔俊杰 《山西建筑》2008,34(7):271-272
结合建设项目造价管理的发展,从古典的建设项目工程造价管理阶段、传统建设项目造价管理阶段、现代建设项目管理阶段三个阶段研究了建设项目造价管理的发展,探讨了造价管理的新拓展即价值管理,以完善建设项目的造价管理方法和理论.  相似文献   

10.
张泗平 《山西建筑》2007,33(13):203-204
对新形势下如何进行科学有效的工程建设项目的管理实施做了较为全面细致的探讨,指出应充分利用法律文件,切实抓好工程建设项目管理,以达到投资的最佳效益。  相似文献   

11.
王秀荣 《山西建筑》2006,32(16):231-232
解释了工程项目成本管理的涵义,分析了我国项目成本管理的现状,提出了成本控制原则,介绍了项目成本控制的对策和措施,使企业获得最大的经济效益。  相似文献   

12.
刘玉祥 《山西建筑》2004,30(20):129-130
对项目管理的概念进行了概述,介绍了项目经理在施工中的职责,并从合同管理、项目经理的选聘和授权、标后预算等方面对项目管理中的几个关键环节进行了阐述。  相似文献   

13.
浅论建设工程项目管理与建设工程监理的关系   总被引:1,自引:0,他引:1  
吴枫彩 《山西建筑》2009,35(24):208-209
从涵义、业务范围及相关政策法律和规章等方面探讨了建设工程项目管理与建设工程监理的关系,指出建设工程项目管理代表了工程监理今后的发展方向,应鼓励和支持有条件的监理企业向工程项目管理企业过渡。  相似文献   

14.
水利水电工程作为我国的基础工程,对我国经济发展有至关重要意义。水利水电工程的建设过程中经常会对周围生态环境产生负面影响,制约我国发展速度,影响水利体系建设,与我国可持续发展战略相违背。基于此,本文就对水利水电工程建设对生态环境的影响及其生态管理进行探究,以期为水利水电建设提供参考依据。  相似文献   

15.
胡洋  陈俊 《山西建筑》2008,34(16):190-191
对工程总承包和工程项目管理的基本概念、实施方式、介入阶段、应用要求以及合同结构等方面进行了比较分析,阐述了工程总承包企业和工程项目管理企业的培育发展基础以及它们和项目业主之间的相互关系。  相似文献   

16.
Thinking in terms of systems is considered as an essential basis for project management. A set of conceptual models for the management of projects on the basis of the physical system of the constructed facilities is presented. The purpose, the structures, the boundaries, the environment and the objectives of these models and some of the application procedures are discussed.  相似文献   

17.
谈建筑工程施工合同及其备案管理制度   总被引:1,自引:0,他引:1  
闫爱宏 《山西建筑》2009,35(34):210-211
阐述了实行施工合同备案制的必要性及重要性,分析了施工合同实行备案中存在的问题,提出了建设工程施工合同备案的对策和思路,以促使双方履行合同义务,减少合同纠纷,从而维护当事人的合法权益。  相似文献   

18.
The purpose of project organization is to create a cooperative environment. Contracts are the method by which the owner creates a project organization to employ resources to achieve their development objectives. Contracts should aim to produce a cooperative organization, aligning the contractors' objectives with the owners. A three‐dimensional vector (reward, risk, safeguard), adapted from the Transaction Cost Economics literature, is used to analyse the efficacy of contract types to do this. Contracts are also unavoidably incomplete. They need to respond to unforeseen circumstance. A four‐dimensional vector (incentive intensity, adaptiveness, reliance on monitoring and control, reliance on the courts), also from the Transaction Costs Economics literature, is used to analyse the governance efficacy of contract types. The results are used to develop a contract selection strategy, depending on whether the uncertainty is controlled by the client or the contractor, the project is simple or complex, and the uncertainty is in the project's product, method of delivery or both.  相似文献   

19.
秦英广 《山西建筑》2009,35(34):205-206
深入探讨了建设工程施工项目管理,提出了施工项目管理的两个层次,即思想性方法和技术性方法,从组织机构管理、质量管理、成本管理、安全生产与文明施工管理等方面进行了阐述,积累了工程施工项目管理经验。  相似文献   

20.
工程监理与工程项目管理关系的探讨   总被引:1,自引:0,他引:1  
赵建英 《山西建筑》2009,35(18):196-197
阐述了工程建设监理与工程项目管理的含义,探讨了两者的区别,分析了当前监理工作存在的主要问题及工程项目管理的意义,指出随着建筑市场的不断扩大和发展,建筑监理企业势必要向项目管理企业转型。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号