| 基于熵值-理想点法的泥石流危险度研究 |
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| 引用本文： | 刘朝安,高文龙,阙金声,陈剑平.基于熵值-理想点法的泥石流危险度研究[J].吉林大学学报(地球科学版),2011(Z1):201-206,226. |
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| 作者姓名： | 刘朝安 高文龙 阙金声 陈剑平 |
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| 作者单位： | 中国电力工程顾问集团华北电力设计院工程有限公司;吉林大学建设工程学院; |
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| 基金项目： | 国家自然科学基金项目(40872170) |
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| 摘 要： | 泥石流危险度的划分是泥石流研究中的重点与难点,泥石流危险度的确定对于泥石流整体特征的把握具有十分重要的作用。采用熵值-理想点法建立了泥石流危险度划分模型,选取流域面积、主沟长度与泥石流沟相对最大高差等10个评价指标。利用现场3条泥石流沟作为工程评价对象,通过熵值法确定各评价指标的权重系数,并采用理想点法进行泥石流危险度的划分研究。根据模型分析结果,泥石流沟2与3属于高危险度(贴近度为0.79与0.83),泥石流沟1属于中危险度(贴近度为0.82)。泥石流危险度与现场情况及已有研究资料基本一致,证明了该法在泥石流危险度划分中的合理性与有效性。
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| 关 键 词： | 泥石流 危险度 熵值法 理想点法 |
Debris Flow Hazard Degree Based on Entropy-Ideal Point Method |
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| LIU Chao-an,GAO Wen-long,QUE Jin-sheng,CHEN Jian-ping .North China Power Engineering Co.Ltd,China Power Engineering Consulting Group,Beijing ,China .College of Construction Engineering,Jilin University,Changchun ,China.Debris Flow Hazard Degree Based on Entropy-Ideal Point Method[J].Journal of Jilin Unviersity:Earth Science Edition,2011(Z1):201-206,226. |
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| Authors: | LIU Chao-an GAO Wen-long QUE Jin-sheng CHEN Jian-ping North China Power Engineering CoLtd China Power Engineering Consulting Group Beijing China College of Construction Engineering Jilin University Changchun China |
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| Institution: | LIU Chao-an1,GAO Wen-long1,QUE Jin-sheng1,CHEN Jian-ping2 1.North China Power Engineering Co.Ltd,China Power Engineering Consulting Group,Beijing 100120,China 2.College of Construction Engineering,Jilin University,Changchun 130026,China |
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| Abstract: | It is difficult but important to analyze the hazard degree of debris flows,which plays an important role in the grasp of overall characteristics of the debris flow.Entropy-ideal point method was applied to generate a hazard degree classification model,and 10 assessment factors,such as the basin area,main channel length,maximum difference,were used for debris hazard degree assessment.Three debris flow gullies was taken for example.Entropy method was used to determine the weight factors,and ideal method was t... |
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| Keywords: | debris hazard degree entropy method ideal point method |
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