【作者】 张平；

【导师】 钟登华；

【作者基本信息】 天津大学 ， 水工结构工程， 2011， 博士

【摘要】 高心墙堆石坝工程量大、工期长,施工环节复杂、施工机械种类、数量繁多;受自然因素尤其是降雨的影响较大,约束条件复杂。设计阶段已普遍采用施工仿真技术来辅助方案分析。高心墙堆石坝施工过程具有很强的随机性和不确定性,往往与计划存在偏离,如何充分利用当前施工信息实时更正仿真过程,并指导进度控制是亟待解决的问题。本文基于高心墙堆石坝实时监控系统,重点研究了高心墙堆石坝施工动态仿真建模的理论与方法。将系统仿真、实时监控和进度控制理论在高心墙堆石坝施工仿真中进行综合应用,开展基于实时监控的高心墙堆石坝施工动态仿真与进度控制研究,主要工作与研究成果如下:1.结合高心墙堆石坝实时监控的内容与信息,详尽分析了填筑单元的施工过程并进行了系统分解。研究了实时监控对仿真的影响机制,提出了基于实时监控的填筑单元施工动态仿真基本原理,建立了精细的单元施工仿真模型。以糯扎渡高心墙堆石坝的填筑单元施工为例,进行了仿真分析应用研究,验证了模型的合理性。2.针对高心墙堆石坝施工过程的随机性和经验性强的特点,指出了传统填筑单元划分规则的不足,提出了填筑单元划分优化及机械分配规则,建立了基于填筑单元划分的填筑层施工工期与机械利用率联合优化模型,通过实例分析,验证了方法的有效性,为填筑单元的划分提供了理论依据。3.综合考虑施工过程中的复杂约束条件,建立了高心墙堆石坝施工动态一体化仿真的随机动态数学逻辑模型和施工仿真模型,为分析高心墙堆石坝施工过程内在规律提供了理论基础。提出了基于实时监控的一体化自适应建模理论与方法,该方法可以提高仿真的精度和实时性。针对糯扎渡高心墙堆石坝施工的全过程进行了仿真分析,对仿真计算成果进行了综合评价。4.分析研究了高心墙堆石坝的施工进度实时控制过程,提出了基于实时监控和实时仿真的高心墙堆石坝施工进度预测及分析方法。根据进度控制的基本原理,建立了高心墙堆石坝施工进度的控制流程,提出了高心墙堆石坝施工进度动态调整与控制的实现方法。在此基础上,研发了基于实时监控的高心墙堆石坝施工动态仿真与进度控制系统,为高心墙堆石坝的施工进度控制提供了有效的分析工具,并为高标准的高心墙堆石坝的建设提供了有力的技术支持。更多还原

【Abstract】 The high core rockfill dam is characterized by the large quantity, long duration, complicated process and numerous machinery, and it is affected by the complicated constraint conditions, especially rain. The scheme has been analyzed by the simulation technology in the design stage. The construction process of the high core rockfill dam with randomess and uncertaintis is usually deviated from the plan construction process, so the real-time schedule control by current information to correct the simulation process is necessary. Based on the Real-Time Monitoring System of the high core rockfill dam, theory and methods of the simulation modeling of the high core rockfill dam are studied in the paper. Appling the system simulation technology, the real-time monitoring technology and the scheme control theory, the dynamic simulation and schedule control based on the real-time monitoring of the high core rockfill dam is reseached. The main contents and achievements are summarized as follows:1. Based on the information and content of the real-time monitoring of the high core rockfill dam, the construction process of the filling unit is systemly decomposed. The influence mechanism of real-time monitoring on construction simulation is proposed, under which the dynamic simulation principle based on the real-time monitoring of the filling unit is researched, and the simulation model of the unit construction is established. At last, the filling unit construction process of the NuoZhaDu high core rockfill dam is taken as an example to verify the reliability of the simulaton model.2. According to the strong randomess and the experience of the high core rockfill dam, the method of filling unit division and the machine distribution is proposed based on construction simulation, the integrated optimal model of construction period and machinery utilization for the filling unit division is established, which is applied in the actual construction site, and the validity of the proposed method is proved.3. Considering the construction process of various complicated constraints, the dynamic mathematical logic model of construction simulation for the high core rockfill dam is established, which provides the theoretical basis for analyzing inherent law of the construction process. An integrated self-adapted simulation based on the monitoring system is prompted to inhence the real-time performance and correctness of simulation. The whole construction process of NZD high core rockfill dam is analyzed using the dynamic mathematical simulaton and the result is evaluated conprehensively.4. The real-time control of the construction schedule for the high core rockfill dam is researched, and the construction schedule forecasting and analysis method based on the real-time monitoring for the high core rockfill dam is proposed. According to the basic principle of schedule control, the schedule control process of the high core rockfill dam is established, the implementation method of the dynamic adjustment and control for construction schedule of the high core rockfill dam is discussed. The system of the construction dynamic simulation and the schedule based on the real-time monitoring for the high core rockfill dam is researched and developed, which is the aided analysis tools for the construction management. Meanwhile, the technical support is applied for the construction control.更多还原