| 强震后高烈度区泥石流危险性评价——以汶川地震区G213线映秀到彻底关段为例 |
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| 引用本文： | 涂国强,程尊兰,刘建康,黄金辉.强震后高烈度区泥石流危险性评价——以汶川地震区G213线映秀到彻底关段为例[J].山地学报,2013,31(4). |
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| 作者姓名： | 涂国强 程尊兰 刘建康 黄金辉 |
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| 作者单位： | 1. 四川交通职业技术学院,四川成都,611130
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 |
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| 基金项目： | 四川省交通运输厅科技基金，中国科学院一三五方向性项目，中交股份科技研发项目(2011-ZJKJ-04).This study was supported by the Fund of Science and Technology of Transportation Hall of Sichuan Province，Directional Project of Institute of Mountain Hazards and Environment of Chinese Academy of Sciences，Research and Development Project of Science and Technology of China Communication Construction Company Limited |
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| 摘 要： | 强震在高烈度的山区往往诱发大量的崩塌和滑坡,一到雨季不同规模的泥石流频频暴发,造成严重的灾害.以处于汶川地震Ⅺ度烈度区的213国道映秀到彻底关段的21条沟为例,探讨强震后如何对高烈度区的沟道泥石流的规模、频率、危险性作出尽快评价.为此,针对地震泥石流的特点和形成条件,确定影响泥石流规模和频率的评价因子;并从已有的相关图件和遥感影像中获取评价因子的特征值;用简单的数学方法将因子特征值分为五级,并归一化为0.0到1.0的标准值;用层次分析法计算出评价因子的权重;然后用常用或改进的评价模型,对21条沟泥石流的规模、频率、危险性分五级作出评价;最后用强震后3 a间各沟实际发生的泥石流规模和频率对评价结果进行检验,结果表明两者吻合度比较好.这种尽快的评价方法,可供其他山区强震后高烈度区的泥石流危险性评价参考.
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| 关 键 词： | 强震后 高烈度区 泥石流危险性 尽快评价 |
Assessment of Debris Flow Danger in High-intensity Earthquake Area after Intense Earthquake A Case Study of the Yingxiu-Chediguan Section of G213Highway Hit by the Wenchuan Earthquake |
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| TU Guoqiang
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CHENG Zunlan
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LIU Jiankang
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HUANG Jinhui.Assessment of Debris Flow Danger in High-intensity Earthquake Area after Intense Earthquake A Case Study of the Yingxiu-Chediguan Section of G213Highway Hit by the Wenchuan Earthquake[J].Journal of Mountain Research,2013,31(4). |
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| Authors: | TU Guoqiang CHENG Zunlan LIU Jiankang HUANG Jinhui |
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| Abstract: | |
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| Keywords: | after intense earthquake high-intensity earthquake area debris flow danger quick assessment |
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