关键词: 矿山地质灾害, 危险性评价, 熵值法, 突变级数法, 地质灾害类型, 评价指标体系, 突变隶属度

Abstract: In order to avoid the deficiencies of the calculation of evaluation index weight and subjective weight assignment of the classical mine geological disaster risk evaluation methods,taking Luan mining area as the study example,a improved mutation progression method based on entropy value method is proposed,and the improved mutation progression method is adopted to conduct mine geological disaster risk evaluation.Based on the systemic analysis of the characteristics and types of mine geological disasters in Luan mining area systematically,the five typical mines of Luan mining area are taken as the specific study examples,firstly,according to the characteristics and types of the mine geological disasters in Luan mining area,the index system of mine geological disaster risk evaluation is established,secondly,the relative importance of the same layer index of mine geological disaster risk evaluation is determined by adopting the entropy value method;then,the total mutations membership values of difference mines are calculated by the normalization formula of mutation progression method;finally,the mine geological disaster risk evaluation is conducted by adopting the converted graded standard.The evaluation result show that the mine geological disaster risk evaluated method proposed in this paper not only can avoid the subjectivity of determining the weights,but also can quantitatively distinguish the importance of the same level index,the evaluation results is consistent to the the filed geological investigation results,it can provide scientific basis for the risk evaluation and effective prevention and treatment of mine geological disaster.

Key words: Mine geological disaster, Risk evaluation, Entropy value method, Mutation progression method, Geological disaster type, Evaluation index system, Mutations membership value