泥石流泛滥区域数值模拟  

Numerical simulation on inundation area of debris flow

作　　者：李同春[1] 李杨杨[1] 章书成[2] 余斌[2] Pastor M 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098 [2]中国科学院·水利部成都山地灾害与环境研究所,四川成都610041 [3]西班牙国家公共试验研究中心(CETA-CEDEX),西班牙马德里28014

出　　处：《水利水电科技进展》2008年第6期1-4,共4页Advances in Science and Technology of Water Resources

摘　　要：概述泥石流泛滥区域数值模拟的研究现状,介绍数值模拟Geoflow程序的基本方程、数值求解方法和定解条件。采用Geoflow程序对四川省境内某一较大泥石流沟遭遇20年一遇泥石流的泛滥区域进行数值模拟,得到的泛滥区域与采用经验公式法得到的结果基本一致,表明数值模拟的结果具有工程应用价值。由于该泥石流沟的重大威胁性,建议在堆积扇上修建的生产、生活设施应避让泛滥区域或采取适当的防护治理措施。In this paper, the main research achievements in numerical simulation of debris flow inundation ares achieved by CETA-CEDEX are reviewed and summarized. The basic equations, numerical solutions and boundary conditions of the Geoflow program are introduced. Based on Geoflow program, the debris flow inundation occuring over 20 years in a certain gully in Siehuan Province has been simulated. The calculated result is nearly consistent with those of empirical formula method. It shows that the numerical simulation can be applied in practical engineering. We suggest that habitation should be avoided or take some prevention measures in a deposition fan.

关 键 词：泥石流 泛滥区域 数值模拟 C eoflow程序 

分 类 号：P642.23[天文地球—工程地质学]