Proposing a novel comprehensive evaluation model for the coal burst liability in underground coal mines considering uncertainty factors  

作　　者：Jian Zhou Chao Chen Mingzheng Wang Manoj Khandelwal 

机构地区：[1]School of Resources and Safety Engineering,Central South University,Changsha 410083,China [2]Bharti School of Engineering,Laurentian University,Sudbury,Ontario,Canada [3]School of Engineering,Information Technology and Physical Sciences,Federation University Australia,Ballarat,Australia

出　　处：《International Journal of Mining Science and Technology》2021年第5期799-812,共14页矿业科学技术学报（英文版）

基　　金：funded by the National Science Foundation of China(Nos.72088101 and 41807259);the Innovation-Driven Project of Central South University(No.2020CX040);the Shenghua Lieying Program of Central South University(Principle Investigator:Dr.Jian Zhou)。

摘　　要：Coal burst is a severe hazard that can result in fatalities and damage of facilities in underground coal mines.To address this issue,a robust unascertained combination model is proposed to study the coal burst hazard based on an updated database.Four assessment indexes are used in the model,which are the dynamic failure duration(DT),elastic energy index(WET),impact energy index(KE)and uniaxial compressive strength(RC).Four membership functions,including linear(L),parabolic(P),S and Weibull(W)functions,are proposed to measure the uncertainty level of individual index.The corresponding weights are determined through information entropy(EN),analysis hierarchy process(AHP)and synthetic weights(CW).Simultaneously,the classification criteria,including unascertained cluster(UC)and credible identification principle(CIP),are analyzed.The combination algorithm,consisting of P function,CW and CIP(P-CW-CIP),is selected as the optimal classification model in function of theory analysis and to train the samples.Ultimately,the established ensemble model is further validated through test samples with 100%accuracy.The results reveal that the hybrid model has a great potential in the coal burst hazard evaluation in underground coal mines.

关 键 词：Coal burst liability(CBL) Unascertained measurement(UM) Analysis hierarchy process Information entropy Synthetic weights Comprehensive evaluation 

分 类 号：TD77[矿业工程—矿井通风与安全]