【作者】 黄河；

【导师】 钟登华；

【作者基本信息】 天津大学 ， 工程管理， 2007， 博士

【摘要】 大型水电工程规模庞大,技术和自然条件复杂,其分标阶段的施工设计是对工程建设进行实施性的总体规划,是一项复杂、繁琐且艰巨的任务,占有十分重要的地位。目前的水电工程分标施工规划没有固定的模式,一般是在可研成果的基础上对选定方案进行深化,缺乏周密严格的科学论证,难以获得更为优化的分标施工规划方案。本文全面系统地统筹分析研究大型水电工程不同标段主体建筑物施工中各方面因素和约束关系,运用水利水电工程科学、计算机科学、仿真技术和系统工程理论等先进理论技术,提出了实现大型水电工程分标规划阶段施工仿真与优化分析的理论方法,主要获得了以下四项研究成果:(1)提出了面向水电工程分标阶段的施工仿真理论方法。针对水电工程分标规划阶段的施工组织设计所遇到的科学问题和实际需要,研究提出了水电工程分标规划施工仿真的总体结构体系,包括基于分标规划方法和面向对象技术的水电工程分标施工仿真对象分类方法、分标主体工程和总体系统的施工动态仿真与三维可视化仿真方法,进行施工过程的仿真计算、方案评价与优化分析,为水电工程分标段的施工仿真研究提供了坚实的理论基础。(2)提出了分标主体工程施工仿真与优化分析实用技术。针对水电工程导流标、大坝标和地下厂房系统标这三个关键主体工程的施工特点和进度要求,采用复杂系统分解协调与控制理论对其进行系统分解耦合,分别提出了施工导流系统的仿真模型和三维动态仿真方法、混凝土拱坝施工过程仿真模型和进度仿真分析方法、地下厂房系统施工全过程仿真模型和三维动态仿真优化分析方法,并开发了相应的软件程序,为主体工程分标方案在度汛、施工强度、施工进度等方面的合理性提供了定量的评价与优化技术。(3)提出了从总体角度考虑的场内施工交通运输与施工总布置仿真优化技术。在分标主体工程施工仿真与优化的基础上,针对整个工程复杂的施工交通运输和施工总布置存在的合理规划和论证难题,提出了基于循环网络模拟技术的施工交通运输仿真方法和水电工程施工总布置三维可视化建模与三维动态仿真方法,为分析评价复杂条件下水电工程场内施工交通运输与施工布置的合理性提供了有力的技术手段。(4)以雅砻江锦屏一级水电工程为依托背景,对上述理论技术和方法进行了完整、系统地应用研究,基于初步的分标施工方案,深入研究了施工导流、混凝土坝施工、地下洞室群施工、场内交通运输、施工总布置的施工仿真与优化分析,对初始分标方案的可行性进行了分析评价,同时提出了优化的分标方案,该方案为目前实施方案,为该工程的合理分标与施工管理提供了科学依据和技术支持。更多还原

【Abstract】 Large-scale hydropower projects have great scope and complex technical-natural conditions. The construction design in the project delivery stage is the implementary general planning of engineering construction. It is a complicated, fussy and arduous task, which has a great impact on the project. However, it is hard for traditional stepwise mode based on feasibility study results to obtain the better delivery layout scheme. Therefore, considering large amounts of factors and constraint relations among different package constructions, a complete methodological scheme is presented to realize construction simulation and optimization analysis of large-scale hydropower engineering in project delivery stage. It integrated with advanced theories and methods from hydraulic and hydropower engineering science, computer science, simulation technique and systems engineering science.In general, the following four achievements are obtained in this dissertation:(1) The theory and approach of construction simulation orienting to the hydropower project delivery stage was put forward. According to the scientific problems and the actual demands, the overall structural system of the delivery construction simulation was presented. It included the classified method of delivery construction simulation objects, dynamic simulation and 3D visual simulation methods of delivery primary engineering and total system. They provide important theoretical basis.(2) The applied construction simulation and optimization analysis technique of delivery primary works was presented. Aiming at the construction feature and the schedule demand of diversion construction, dam engineering and underground power house, the complex and large systems were decomposed and coupled by the theory of system composition, decomposition and control. Then, the simulation models, dynamic simulation methods and optimization algorithms were illustrated to represent and analyze their construction processes, and corresponding software programs were developed.(3) The simulation and optimization technique of construction transportation and construction site layout was brought forward. Based on the simulation computation optimization analysis of delivery primary works, some approaches were implemented to solve the problems of reasonable layout and scheme demonstration. There were the construction simulation approach of traffic and transportation, the 3D visual modeling and dynamic simulation approach of construction site layout. They provide powerful technical measures for analyzing and evaluating the rationality of construction transportation and construction site layout schemes . (4) The above theories, methods and techniques have been applied to the Jinping first-level hydropower project located on the Yalongjiang River wholly and successfully. Based on the preliminary delivery scheme, the simulation computation and optimization analysis were studied in depth for diversion construction, concrete dam construction, underground structure group construction, construction traffic and transportation, and construction site layout. The feasibility of preliminary scheme was evaluated rationally, and the optimized delivery scheme was obtained, which was the implementary scheme in the practical engineering construction.更多还原