基于实时信息的高拱坝混凝土浇筑与温控方案动态反馈协同设计方法研究

项目名称： 基于实时信息的高拱坝混凝土浇筑与温控方案动态反馈协同设计方法研究

项目编号： No.51479103

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 水利工程

项目作者： 周宜红

作者单位： 三峡大学

项目金额： 84万元

中文摘要： 高拱坝工程通常施工场地狭窄，环境条件复杂多变，混凝土浇筑方案制订和修改周期长，同时温控防裂是其施工质量控制的关键。如何适应现场要素的动态变化，综合考虑浇筑方案、温控方案和坝体的进度、成本控制目标，快速制订和优化混凝土浇筑与温控方案，是高拱坝工程建设的重要课题。 本项目拟以高拱坝混凝土施工质量和控制工期为强约束，以混凝土浇筑与温控方案为基本研究对象，建立基于现场实时施工信息和知识库的数据挖掘模型，分析坝体当前浇筑状态和温控状态；构建浇筑与温控方案优化的可变参数集和约束集，利用已建的温度场与施工过程耦合仿真模型进行反馈分析；探索高拱坝混凝土浇筑及温控方案对全坝浇筑进程、成本的影响规律，建立浇筑方案与温控方案的多维度评价体系及模型。在此基础上，集成施工系统多维建模技术和情境绘制与渲染技术，构建高拱坝浇筑及温控方案动态协同设计模型，并结合溪洛渡、白鹤滩等工程进行模型验证与应用研究。

中文关键词： 混凝土浇筑；温度控制；反馈设计；协同优化；拱坝施工

英文摘要： In the construction process of high arch dams, formulation and modification period of concrete pouring scheme is long due to the narrow gorge and ever-changing environmental condition at dam site area. Meanwhile, temperature and crack control is crucial for quality control of arch dams. Therefore, it is critical to fully consider concrete pouring scheme and temperature control scheme, as well as targets of construction schedule and cost control, so as to formulate and optimize schemes quickly and efficiently in accordance with dynamic conditions at construction site. This research is taking concrete pouring and temperature control schemes as basic research objects, with construction quality and critical schedule points as mandatory constraints. Firstly, a data mining (DM) model is established for analyzing current state of concrete pouring and temperature based on knowledge base and real-time information of construction system. Secondly, a variable set and a constraint set are formed for feedback analysis with the Temperature Field and Construction Process Coupled Simulation Model established by the former research project (NO.51079079, supported by NSFC, 2011-2013). Next, influence law of concrete pouring and temperature control schemes upon pouring progress and cost of the whole arch dam is studied and a multidimensional evaluation system for construction scheme is proposed. Finally, combining with the multidimensional modeling and rendering techniques, a dynamic collaborative design model is set up. Moreover, the real-life projects named Xiluodu, Baihetan etc., are taken as study cases for validation and application of the models.

英文关键词： concrete pouring;temperature control;feedback design;collaborative optimization;arch dam construction