基于熵权物元可拓模型的煤矿瓦斯爆炸危险性评价  

The risk evaluation of gas explosion in coal mines by matter-element extension model based on entropy weight

作　　者：解镕嘉 谢雄刚[1,2] 殷涛 谭玉琴 Xie Rongjia;Xie Xionggang;Yin Tao;Tan Yuqin(College of Mining,Guizhou University,Guiyang Guizhou 550025,China;Engineering Center for Safe Mining Technology Under Complex Geologic Conditions,Guizhou University,Guiyang Guizhou 550025,China)

机构地区：[1]贵州大学矿业学院,贵州贵阳550025 [2]贵州大学复杂地质矿山开采安全技术工程中心,贵州贵阳550025

出　　处：《化工矿物与加工》2023年第8期32-38,共7页Industrial Minerals & Processing

基　　金：国家自然科学基金项目(51864009);贵州省科技厅社发攻关项目(黔科合SY字[2015]3001);贵州省科技厅项目(黔科合支撑[2017]2821)。

摘　　要：为了准确评价煤矿瓦斯爆炸危险性等级,降低煤矿地下开采中发生瓦斯爆炸事故的风险,在熵权物元可拓理论的基础上建立了煤矿瓦斯爆炸危险性评价模型。根据煤矿瓦斯爆炸机理及灾害发生特点,构建了包含9个二级指标和3个一级指标的煤矿瓦斯爆炸危险性评价指标体系,基于可拓学原理引入熵权法对各评价指标进行客观赋权;先对指标进行归一化处理以使指标具有可比性,进而构建各指标的经典域、节域和待评物元,最后通过对加权关联度进行计算得到煤矿瓦斯爆炸危险性等级。利用该评价模型对贵州大树煤矿、山西香源沟煤矿和河南中马村煤矿进行瓦斯爆炸危险性评价,结果表明:贵州大树煤矿和山西香源沟煤矿的瓦斯爆炸危险性等级均为Ⅳ级,具有较强爆炸危险性;河南中马村煤矿的瓦斯爆炸危险性等级为Ⅲ级,具有一般爆炸危险性;评价结果与矿山实际情况一致,验证了该模型的合理性和可靠性。In order to accurately estimate the risk level of gas explosion in coal mines and minimize the risk of gas explosion accidents during underground coal mining operation,a model for evaluating gas explosion risk in coal mines was established on the basis of entropy weight and matter element extension theory.According to the gas explosion mechanism in coal mines and the occurrence characteristics of the disaster,a coal mine gas explosion risk evaluation system consisting of 9 secondary indicators and 3 primary indicators was constructed.Entropy weight method was introduced in the principle of extension to objectively assign weight to each evaluation index.Firstly the indexes were normalized to make them comparable,and then the classical domain,node domain and matter element to be evaluated of each index was built.Finally the risk level of gas explosion in coal mine was obtained by calculating the weighted correlation degree.The gas explosion risk of Dashu coal mine in Guizhou,Xiangyuangou coal mine in Shanxi and Zhongmacun coal mine in Henan was evaluated by using this evaluation model.The results show that the gas explosion risk level of Dashu coal mine and Xiangyuangou coal mine was Grade Ⅳ,representing high risk of gas explosion,while the gas explosion risk of Zhongmacun coal mine was Grade Ⅲ,representing a general gas explosion risk.The result from evaluation was consistent with the facts of the mines,which has verified the rationality and reliability of the model.

关 键 词：煤矿瓦斯爆炸 熵权法 物元可拓理论 危险性评价 评价模型 危险性等级 

分 类 号：TD712[矿业工程—矿井通风与安全] X936[环境科学与工程—安全科学]