[1]王威,田杰,马东辉,等.基于分形维数权重的泥石流危险度评价[J].山地学报,2011,(06):747.
　WANG Wei,TIAN Jie,et al.Evaluation of Dangerous Degree of Debris Flow Basedon Fractal Dimension Weight[J].Mountain Research,2011,(06):747.
点击复制

基于分形维数权重的泥石流危险度评价()
分享到：

《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2011年06期
页码:
747
栏目:
山地学报
出版日期:
2011-01-01

文章信息/Info

Title:
Evaluation of Dangerous Degree of Debris Flow Basedon Fractal Dimension Weight
作者:
王威;田杰;马东辉;刘晓然;
1.北京工业大学 抗震减灾研究所，北京 100124；
2.北京工业大学 建筑工程学院，北京 100124
Author(s):
WANG Wei; TIAN Jie; MA Donghui; LIU Xiaoran
1. Institute of Earthquake Resistance and Disaster Reduction, Beijing University of Technology, Beijing 100124, China;
2.College of Civil Engineering，Beijing University of Technology，Beijing 100124，China
关键词:
分形理论; 插值模型; 分维数; 泥石流危险度; 评价
Keywords:
fractal theory; interpolation model; fractal dimension; dangerous degree of debris flow; evaluation
分类号:
P642.23
文献标志码:
A
摘要:
泥石流危险度评价是一个复杂的不确定系统问题,为了准确评价泥石流所处的危险度状态,进而为泥石流的防治提供科学依据,提出了基于分形维数权重的泥石流危险度评价方法。该方法首先选取影响泥石流危险度评价的10个主要因素,根据分类标准,采用在每级标准中随机内插的方法,得到40个标准样本,用于构建泥石流危险度评价的分形—插值模型;其次根据最大似然分类原则确定每个泥石流指标的评价分维数;然后利用加权求和法计算样本的综合评价值,并根据样本综合评价值与经验等级之间的关系建立分形插值评价模型;最后,通过实例分析表明:该方法的评价结果是准确和可靠的,与采用其他分类方法所得结论一致。此外,该模型可以得出每个样本的具体得...
Abstract:
Evaluation of dangerous degree of debris flow is a complex system problem of uncertainty. For the sake of accurate evaluation of the dangerous degree of debris flow, so as to provide scientific basis for the prevention of debris flow, this paper brings forward the prediction method for dangerous degree of debris flow based on fractal dimension weight. Firstly, ten key factors are chosen to construct the model. In addition, because of few standard samples, forty standard samples are produced by the way of stochastic interpolation on basis of classification standard; Secondly, through calculating the fractal dimension of single index of debris flow, confirming the fractal dimension exponent evaluation of the index of single debris flow with the maximum likelihood classification principle; Thirdly, adopting weighted summation value this method calculates the level of the colligate estimation of multiindex of debris flow and establishes the fractal interpolation evaluation model according to the relationship between the value of comprehensive evaluation of the samples and the experience level; Finally, eight samples are classified based on the model. The classification results are consistent with that from other method. It is shown that the model here is feasible and effective in predicting classification of evaluation of dangerous degree of debris flow. Moreover, particular score of each sample could be computed by the model; so it has more precise classification and is a rather better new method.

备注/Memo

备注/Memo:
收稿日期(Received date)：2011-06-15；改回日期(Accepted) : 2011-08-17。
基金项目（Foundation item）：中国科学院知识创新工程重要方向项目(KZCX2-YW-Q03-5-2)，国家重点基础研究发展计划（973计划）项目（2011CB409902）。\[This research is supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. KZCX2-YWQ03-5-2) and the National Program on Key Basic Research Project (973 Program) (2011CB409902).\]
作者简介（Biography）：王威（1981-），男，博士，助理研究员。主要从事灾害风险评价。\[Wang Wei(1981-), male, Dr, assistant research fellow, majoring in the risk evaluation of disaster. \] E-mail: ieeww@ bjut.edu.cn
更新日期/Last Update: 1900-01-01