港珠澳大桥沉管浮运安装计划与控制研究

发布时间：2018-10-09 13:22

【摘要】：港珠澳大桥沉管隧道是国内在建的第一条外海深埋沉管隧道,共有沉管33节,最终接头1处,合同工期36个月。沉管浮运安装是沉管隧道的控制性工程,为了完成合同工期,需要以1节/月的平均速度进行安装,而沉管浮运安装工序多、要求高、难度大,且必须在特定的作业窗口下进行,因此沉管浮运安装进度控制难度较大。作为国内首条外海沉管隧道,进度控制无成功经验可以借鉴,如何利用有限资源在合同工期内完成沉管浮运安装是项目管理的重点和难点,本论文就是在这一背景下开展研究的。本文利用网络计划技术编制了港珠澳大桥沉管浮运安装施工进度图,配置了资源,提出了控制程序、方法和措施,并将理论成果应用到沉管浮运安装实践中,对计划进行调整。具体开展工作如下：1.从合同工期入手,分析沉管浮运安装的特点、难点,制定总体目标和进度目标,进行进度计划编制。先是对沉管浮运安装作业任务进行分解,估算出各个作业任务的持续时间,研究各个作业任务的逻辑关系、重要程度、资源消耗、风险等级等控制条件,以此为基础编制了一套施工进度控制计划。然后利用网络技术对施工进度控制计划进行调整和优化,最终制定了一套符合合同工期的施工进度计划。2.根据制定的施工进度计划开展了沉管浮运安装资源研究,对工程所需要的船机、人员、材料进行了配置,并对关键资源和非关键资源进行辨识,指出可以通过调整资源投入的方式调整进度计划。3.将进度控制目标进行分解,制定了进度计划的控制程序、组织机构和控制方法,然后制定项目进度控制的主要措施。将研究理论成果应用到港珠澳大桥沉管浮运安装实践中去,根据计划执行过程中出现的问题,分析原因,利用计划控制方法制定改进措施,对后续施工进度计划进行调整,编制了新的进度计划。论文通过研究指出,虽然沉管浮运安装有17道工序,但是可以利用网络计划技术采用并行的工作方法将关键控制工作减少为4道。当进度计划出现偏差时,可采用调整网络计划、增加资源投入、加强技术研究、加强组织保障的措施调整。
[Abstract]:The sinking tunnel of Hongkong-Zhuhai-Macao Bridge is the first deep buried tunnel under construction in China. There are 33 submersible pipes and 1 final joint. The contract period is 36 months. The installation of sinking pipe floating is a control project of immersed pipe tunnel. In order to complete the contract period, the average speed of 1 knots / month is required for installation. However, the installation procedure of sinking pipe floating is many, demanding and difficult. And it must be carried out under a specific operation window, so it is difficult to control the installation schedule of sinking pipe floating. As the first offshore immersed tube tunnel in China, there is no successful experience in schedule control. How to use limited resources to complete the floating installation of sinking pipe within the contract period is the key and difficulty of project management. This paper is under this background to carry out the research. In this paper, using network planning technology, the construction progress chart of floating installation of sinking pipe of Hongkong-Zhuhai-Macao Bridge is compiled, resources are allocated, control program, methods and measures are put forward, and the theoretical results are applied to the practice of installation of sinking pipe, and the plan is adjusted. The specific work to be carried out is as follows: 1. Starting with the contract period, this paper analyzes the characteristics and difficulties of the floating installation of sinking pipe, formulates the overall goal and progress goal, and makes the schedule plan. First of all, decomposing the operation tasks of floating transportation and installation of sinking pipes, estimating the duration of each task, studying the logical relationship, importance, resource consumption, risk grade and other control conditions of each task, Based on this, a set of construction schedule control plan is worked out. Then the network technology is used to adjust and optimize the construction schedule, and a set of construction schedule. 2. 2. According to the construction schedule, the research on the floating installation resources of sinking pipes is carried out, and the ship machinery, personnel and materials needed for the project are configured, and the key and non-critical resources are identified. It is pointed out that the schedule. 3. 3 can be adjusted by adjusting the input of resources. The goal of schedule control is decomposed, and the control procedure, organization and control method of progress plan are worked out, and then the main measures of project schedule control are worked out. This paper applies the research theory to the practice of the floating installation of the sinking pipe of the HongKong-Zhuhai-Macao Bridge. According to the problems in the implementation of the plan, the reasons are analyzed, the improvement measures are formulated by the plan control method, and the subsequent construction schedule is adjusted. A new progress plan has been drawn up. It is pointed out in this paper that although there are 17 processes for the floating operation and installation of sinking pipes, the critical control work can be reduced to 4 by using the parallel working method using network planning technology. When the schedule is deviated, we can adjust the network plan, increase the resource input, strengthen the technical research, and strengthen the measures of organization guarantee.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U459.5

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