| 泥石流风险区划研究 |
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| 引用本文： | 刘希林.泥石流风险区划研究[J].地质力学学报,2000,6(4):37-42. |
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| 作者姓名： | 刘希林 |
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| 作者单位： | 北京大学城市与环境学系,北京,100871;中国科学院成都山地灾害与环境研究所,成都,610041 |
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| 基金项目： | 中国科学院资助项目,水利部水利发展规划项目,人事部非教育系统留学回国人员科技活动择优基金,49771004,SZ9831,[1997]294号,,, |
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| 摘 要： | 本文进一步讨论了泥石流灾害区划的主要原则,即相似性原则、区域完整性原则、综合性原则和主导因子原则。提出了把区域泥石流风险度作为泥石流风险区划的综合性指标,并给出了风险等级的划分方法。把风险等级分为可忽略风险区、低风险区、中等风险区、高风险区和极高风险区。以云南昭通地区为例,阐述了泥石流风险区划的具体方法,并得出了昭通地区泥石泥风险区划成果。
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| 关 键 词： | 区域风险度 风险区划 泥石流 易损性 危险性 |
| 收稿时间： | 2000/3/28 0:00:00 |
DEBRIS FLOW RISK ZONATION IN ZHAOTONG COUNTY OF YUNNAN PROVINCE,CHINA |
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| LIU Xi-lin.DEBRIS FLOW RISK ZONATION IN ZHAOTONG COUNTY OF YUNNAN PROVINCE,CHINA[J].Journal of Geomechanics,2000,6(4):37-42. |
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| Authors: | LIU Xi-lin |
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| Institution: | Department of Urban and Environmental Science, Peking University, Beijing 100871, China;Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China |
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| Abstract: | This paper discusses the principales of debris flow risk zonation,i.e. similarity,integrity,factor synthesis and factor dominancy.Regional grade of debris flow risk is chosen as the synthetic index for the risk zonation and the method for risk grading is also given here. Based on the grades,five zones,negligible risk zone,low risk zone,medium risk zone,high risk zone and very high risk zone are differentiated. Taking Zhaotong county of Yunnan province as an example,the paper describes the methods of debris flow risk zonation and achieves the debris flow risk map for Zhaotong county. |
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| Keywords: | regional risk grade risk zonation debris flow Zhaotong county |
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