基于最小熵分析的泥石流危险度可拓学评价

吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (增刊1): 547-551.

基于最小熵分析的泥石流危险度可拓学评价

王英杰¹, 王磊¹, 荣起国²

1. 吉林大学建设工程学院,长春 130026;
2. 北京大学工学院,北京 100871

收稿日期:2012-08-02 发布日期:2013-06-01
作者简介:王英杰(1984-),男,博士研究生.研究方向:地质灾害.E-mail:Buffon010101@sina.com
基金资助:
"973"国家重点基础研究发展计划项目(2010CB731503).

Extenics in debris flow risk evaluation based on minimum entropy analysis

WANG Ying-jie¹, WANG Lei¹, RONG Qi-guo²

College of Construction Engineering, Jilin University, Changchun 130026, China

Received:2012-08-02 Published:2013-06-01

摘要/Abstract

摘要：

选取流域面积、流域最大高差等16个影响因素对泥石流危险性进行评价。通过最小熵分析理论分析各因素对泥石流性质的影响程度,消除因素间的相关性。根据各因素对泥石流系统的贡献率,优选出主要影响因素,并确定其权重。在物元理论、可拓学理论和关联函数运算的基础上,建立了泥石流危险度评价物元模型。通过对实际泥石流沟进行进行危险度等级关联度计算,对泥石流沟危险性进行了可拓学评价,将评价结果与文献评价结果对比分析,认为泥石流可拓学评价结果能较准确的反映泥石流的危险度水平,同时说明,在泥石流危险度评价领域,运用最小熵分析原理进行因子优选和确定权重有一定的合理性。

关键词: 泥石流, 危险度评价, 最小熵分析原理, 因子优选, 权重, 可拓学

Abstract:

Sixteen conventional evaluation-factors such as watershed area, maximum altitude difference wre chosen to evaluate the debris flow risk. Analyzing of the impact level of various factors on the debris flow and eliminated the correlation of the factors based on the minimum entropy analysis(MEA). According to the contribution rate to the debris system,the main factors and their weights were determined. On the basis of matter-element theory,extension set theory and dependent funetion ealeulation,a matter-element model evaluating the risk of debris flow.By practical calculation of dependent degree to the risk level of debris flow,the risk level is evaluated by extenics.Compared with the evaluation results of the literature,the debris flow evaluation results obtained by the extenics method can more precisely reflect the practical risk level of debris flow.This shows that the application of MEA to select the main factors and determine their weights has a certain rationality.

Key words: debris flow, risk evaluation, MEA, select the main factors, weight, Extenics

中图分类号:

P642.23

王英杰, 王磊, 荣起国. 基于最小熵分析的泥石流危险度可拓学评价[J]. 吉林大学学报(工学版), 2013, 43(增刊1): 547-551.

WANG Ying-jie, WANG Lei, RONG Qi-guo. Extenics in debris flow risk evaluation based on minimum entropy analysis[J]. 吉林大学学报(工学版), 2013, 43(增刊1): 547-551.

参考文献

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