【作者】 黄伟；

【导师】 钟登华；

【作者基本信息】 天津大学 ， 水工结构工程， 2004， 硕士

【摘要】 大型水电工程施工导流是一项复杂的系统工程，涉及到主体工程建筑物施工、临时挡泄水建筑物施工、水位变化等各个方面，其内部各组成部分之间相互联系又相互制约，关系错综复杂。为直观逼真地描述施工导流各环节之间复杂的动态时空逻辑关系，实现施工导流方案形象直观的表达，本文对向家坝水电站施工导流过程进行了三维动态可视化仿真与优化研究。根据向家坝水电站施工导流的特点将系统分为四个子系统：围堰填筑子系统、大坝施工子系统、动态水流子系统及土石方动态开挖子系统，针对每一个子系统进行了系统的分析。研究成果主要体现在以下几个方面：1.运用大系统分解协调与控制理论，构造四个子系统来分析施工导流过程，将 整个施工导流系统的仿真表现为各个子系统的仿真与协调耦合。2.采用离散仿真方法模拟获得大坝施工高程分布情况，采用蒙特卡罗模拟方法 获得洪水水位分布情况。采用排队网络和循环网络模型对围堰填筑过程进行 仿真。对施工强度高峰时段土石方的开挖强度及交通运输主干道行车密度进 行分析是否能满足要求。3.数据库开发上，利用 CAD 功能集成和仿真计算为三维动态可视化提供数据来 源，采用 GIS 特有的空间数据组织形式进行存储。4.分析设计了向家坝施工导流三维动态可视化仿真数据流向，实现了三维数字 模型的动态显示、交互操作、可视化查询、空间分析。5.提出了向家坝电站施工导流过程三维动态可视化仿真与优化系统的具体开 发途径，建立了系统的体系结构，开发并实现了系统的具体功能。为向家坝 水电站施工导流组织管理与决策提供了强有力的分析工具。更多还原

【Abstract】 The construction diversion for a large-scale hydroelectric engineerings is arather complex systems engineering which includes major engineers like dam,temporary ward and discharge water buildings and water-level variety subsystems etc.The parts of respective subsystem not only relate with each other, but also restrictwith each other and the relation of them is greatly intricate. To describe visually thecomplex space-time relationship among all sides of construction diversion and torealize the intuitionistic expression of construction diversion schemes, in this paper3D dynamic visual simulation and optimization for the construction diversion ofXiangjiaba hydropower station is researched. According to current project, it isdivided into four subsystems including cofferdam pouring, dam construction,earthwork excavation and dynamic water flow subsystem and then, comprehensiveanalysis is made about each subsystem. The main contents and achievements of thisthesis are summarily listed as following: Firstly. Systematical analyzing is applied to the construction diversion ofXiangjiaba hydropower station. Using the theory of decomposition-coordination andcontrolling for a large system, the construction diversion system of Xiangjiabaengineering including four subsystems is built. Then the simulation of the wholeconstruction diversion system is expressed with simulation anddecomposition-coupling of all subsystems. Secondly. The discrete system simulation method is adopted to obtain thedistribution situation of elevation of dam construction. Random simulation of waterlevel is gotten by Monte-Carlo method. Queuing system and cyclic operation networkis made use of in cofferdam simulation. At a rush time of construction intensity,earthwork excavation and traffic flow simulation analysis are validated whether it isreasonable. Thirdly. CAD integration system and simulation calculation result provideoriginal data for 3D dynamic visualization simulation which are stored by the specialspace database structure in GIS. Fourthly. The flow of the 3D dynamic visual simulation data of Xiangjiabaconstruction diversion is designed, and the combined function of dynamic display,<WP=4>interactive operation, visual inquiry, and spatial analysis is realized, and by applying3D Dynamic display method, dynamic simulation system for the process ofconstruction diversion is developed. Finally, practical developing way for 3D dynamic visual simulation andoptimization system of Xiangjiaba hydropower station is presented, and thesystematic structure is designed. System function is realized. The successfuldevelopment of the system provides a useful analysis tool for the management anddecision-making of construction diversion of Xiangjiaba hydropower station.更多还原