泥石流危险性分区仿真系统的研究与实现

Research and Implementation of Debris Flow Risk District Decision Simulation System

研究泥石流灾害防治问题,为深入分析揭示泥石流运动规律和再现泥石流爆发过程,提高泥石流灾害防治能力,以计算机仿真技术为手段,G IS技术和流团模型为基础,通过用户提供的地形数据,根据数学模型对泥石流运动进行仿真,得出泥石流运动过程中的运动参数,利用G IS技术进行处理、分析,获得泥石流运动范围内各处的相关信息,实现了危险性分区的可视化识别。仿真结果表明,为险情预报和抢险救灾提供依据和指导。系统应用在云南蒋家沟泥石流流域中,得到了较好的仿真效果,可为实际应用提供依据。

In order to thoroughly analyzes the discipline of debris-flow movement and reappear the process of deb- ris-flow outbreak, the ablility of preventing and curing the debris-flow disaster is to be improved. With the core of computer simulation technology, the base of GIS technology and flow mode, the topographic data provided by the user are used, and the movement of debris flow is simulated. Finally, the system gets the motion parameters of the debris flow in the process of moving. By GIS technology, the system can process and analyze the result data and get the re- lated information everywhere within the scope of debris flow movement. The system achieves the visual management to manage the risk assessment of debris flow, and provides evidence and guidance for forecasting danger, rescuing and disaster relief. System used in debris basin in Yunnan Jiangjiagou has obtained good simulation results.