A特高压输变电工程进度管理研究

发布时间：2018-10-17 12:27

【摘要】：本论文的选题是出自吉林省送变电工程公司项目,以A特高压直流输变电线路工程施工为研究对象,主要研究特高压输变电工程的进度管理。特高压输变电工程要根据不同地形、冰区、风区合理选择钢芯和建材,在路径选择时,本工程线路尽量和其它并行的特高压线路共用走廊,并尽量压缩了并行距离,从而极大的节省了沿线的土地资源,减少了对当地土地、城镇规划的影响。借助洛斯达全息大场景立体影像平台进行选线,合理地调整了线路与沿线障碍物的相互关系,对整体路径方案及各设计标段的接头点进行了优化。合理规划本工程的杆塔,优化工程的杆塔设计,在走廊紧张地段采用。因地制宜采用新型接地材料能提高防腐性能、减少更换维护工作量、易于施工、减少开挖面积、提高降阻效果、保护环境和降低全寿命周期成本。本文研究的对象为A特高压直流输电线路工程,该工程地处陕西省西安市、渭南市、商洛市境内,承建的线路全长137.118公里,共有铁塔基础261基。沿线地形分布是54.1%平地、18.3%丘陵、14.6%一般山地和17.5%高山。线路所经地区的海拔高度在340~2450m之间。根据不同地形、冰区、风区合理选择钢芯截面,合理规划工程的杆塔位置,优化工程的杆塔设计,在走廊紧张地段采用导线垂直排列的”F”型悬垂塔,节省了走廊宽度,并为以后的特高压线路预留了走廊。本人通过阅读有关进度管理的国内外书籍及相关资料,学习了有关进度管理的相关理论知识,分析了在工程项目中进度管理的特点。以A特高压直流输电线路工程项目的工程施工为载体,运用所学的理论知识,结合项目管理系统控制理论、进度管理PDCA循环,对该工程施工进度管理现状进行全面分析,提出工程进度管理在编制进度计划方面和进度控制方面中存在的问题,并分析其产生的原因。并提出了改进的方案:(1)通过对剩余工程量的测算、利用WBS结构分解方法对工程进行分解,确定了工作关系和工作时间,最后编制施工进度计划,并对施工计划进行优化;(2)对进度流程进行优化及关键节点的控制;(3)进度管理考核体系优化。最后提出工程进度管理改进方案实施的保障措施。本文的研究成果运用到工程实际建设中,对该工程的进度控制管理有所改善,并控制了施工成本,取得了很好的效益。通过对工程进度管理的研究,对电力工程建设的进度管理有一定的推动作用。
[Abstract]:The topic of this paper is from the project of Jilin province transmission and transformation engineering company, taking A UHV DC transmission and transformation line construction as the research object, mainly studying the schedule management of UHV transmission and transformation project. UHV power transmission and transformation projects should reasonably select steel cores and building materials according to different terrain, ice area and wind zone. In the course of route selection, the project lines should share corridors with other parallel UHV lines as far as possible, and reduce the parallel distance as far as possible. Thus greatly saves the land resources along the route, reduces the influence to the local land, the town plan. With the help of the Losda holographic stereo image platform, the relationship between the route and obstacles along the route is adjusted reasonably, and the overall path scheme and the joint points of each design segment are optimized. Reasonable planning of the project tower, optimization of the design of the tower in the corridor tension section. Adopting new earthing materials according to local conditions can improve the anticorrosion performance, reduce the workload of replacement and maintenance, ease construction, reduce the excavation area, improve the effect of resistance reduction, protect the environment and reduce the cost of the whole life cycle. The research object of this paper is the A UHV DC transmission line project, which is located in Xi'an, Weinan and Shangluo, Shaanxi Province. The total length of the line is 137.118 kilometers, and there are 261 bases of iron tower foundation. The topographic distribution along the line is 54.1% flat land, 18.3% hilly land, 14.6% general mountain area and 17.5% alpine. The altitude of the area through which the line runs is between 340 m and 2450 m. According to different topography, ice area and wind zone, the section of steel core is reasonably selected, the position of pole tower is reasonably planned, the design of pole tower is optimized, and the "F" type suspension tower with vertical arrangement of conductors is adopted in the tight section of corridor, which saves the width of corridor. And reserved corridors for future UHV lines. By reading domestic and foreign books and related materials on schedule management, I have learned the relevant theoretical knowledge of schedule management, and analyzed the characteristics of schedule management in engineering projects. Taking the construction of A UHVDC transmission line project as the carrier, using the theoretical knowledge learned, combining with the control theory of the project management system and the schedule management PDCA cycle, this paper makes a comprehensive analysis of the current situation of the construction schedule management of the project. The problems of project schedule management in drawing up progress plan and schedule control are put forward, and the causes are analyzed. The improved scheme is put forward as follows: (1) through the calculation of the amount of the remaining project, the method of WBS structure decomposition is used to decompose the project, and the working relationship and working time are determined. Finally, the construction schedule is worked out. It also optimizes the construction plan; (2) optimizes the schedule flow and the control of key nodes; (3) optimizes the assessment system of schedule management. Finally, the paper puts forward the guarantee measures for the implementation of the project schedule management improvement scheme. The research results of this paper have been applied to the actual construction of the project, and the progress control management of the project has been improved, the construction cost has been controlled, and good benefits have been obtained. Through the research of project schedule management, it can promote the progress management of electric power engineering construction.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM75

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