| 兰州市城区泥石流危险性评价 |
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| 引用本文： | 刘兴荣. 兰州市城区泥石流危险性评价[J]. 西北地质, 2016, 49(1): 257-262. |
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| 作者姓名： | 刘兴荣 |
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| 作者单位： | 甘肃省科学院 地质自然灾害防治研究所, 甘肃 兰州 730000 |
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| 基金项目： | 甘肃省科学院青年基金(2012QN-18);兰州市社科规划项目(13-048F);国家科技支撑计划项目(2011BAK12B07) |
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| 摘 要： | 泥石流危险性的研究对于兰州市城区泥石流治理、防灾减灾对策的确定具有重要意义.笔者通过调查的12条典型沟道资料,运用灰色关联分析的方法,取得了评价兰州市城区泥石流灾害的定量指标,并计算了各指标的权重,在此基础上得出了兰州市泥石流危险度评价模型,以此来对兰州市城区泥石流进行危险性评价,并计算出了12条沟道的危险度作为检验,评价结果与实际情况较吻合,结果表明本方法可靠、简便和实用.
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| 关 键 词： | 危险度 灰色关联分析 权重 评价模型 检验 |
| 收稿时间： | 2015-05-14 |
| 修稿时间： | 2015-09-16 |
Hazard Assessment of Debris Flows in Lanzhou City |
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| LIU Xingrong. Hazard Assessment of Debris Flows in Lanzhou City[J]. Northwestern Geology, 2016, 49(1): 257-262. |
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| Authors: | LIU Xingrong |
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| Affiliation: | Geological Hazards Prevention Institute, Gansu Academy of Sciences, Lanzhou 730000, Gansu, China |
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| Abstract: | Debris flow risk study has a great significance for the engineering harnessing, as well as the determination of disaster prevention and mitigation countermeasures for Lanzhou city. In this paper, the data of typical debris flows have been investigated and analyzed, the quantitative indexs for Lanzhou debris flow disaster evaluation have been obtained through using the method of grey relational analysis, and the weights of every index have been calculated. On the basis of the evaluation model, the risk of debris flow in Lanzhou city has been evaluated. And then, the calculated risk degree of these 12 debris flows has been taken as testing indexes. It's found that the evaluation results fit well with the theoretical results, showing this method is reliable, simple and practical. |
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| Keywords: | dangerous degree grey relational analysis weight evaluation model test |
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