基于距离判别分析的矿山岩爆倾向性评价  

Evaluation of Mine Rockburst Tendency Based on the Distance Discrimination Analysis

作　　者：赵国彦[1] 党成凯 刘焕新 刘洋 肖屈日 李洋 陈立强 毛文杰 ZHAO Guoyan;DANG Chengkai;LIU Huanxin;LIU Yang;XIAO Quri;LI Yang;CHENLiqiang;MAO Wenjie(School of Resources and Safety Engineering,Central South University,Changsha 410083,Hunan,China;Deep Mining Laboratory of Shandong Gold Group Co.,Ltd.,Laizhou 261442,Shandong,China)

机构地区：[1]中南大学资源与安全工程学院,湖南长沙410083 [2]山东黄金集团有限公司深井开采实验室,山东莱州261442

出　　处：《黄金科学技术》2021年第5期690-697,共8页Gold Science and Technology

基　　金：“十三五”国家重点研发计划课题“深部金属矿绿色开采关键技术研发与示范”(编号:2018YFC0604606)资助。

摘　　要：为了科学有效地应用距离判别分析法评价某矿山深部岩爆倾向性等级,通过搜集整理大量国内外岩爆数据,并结合矿山深部现场情况,确定6个岩爆倾向性指标。选取9个待测点,进行力学试验获得待测点的岩爆指标,引用马氏距离建立评判准则,确定待测数据的岩爆倾向性,并通过回代误判率和交叉误判率检验判别准则的准确度。结果表明:该金属矿待测点X2、X3、X4、X5、X7、X8和X9的岩爆倾向性均为轻微岩爆,待测点X6的岩爆倾向性为中等岩爆,待测点X1的岩爆倾向性为强岩爆。矿山实际情况表明,待测点X1有强岩爆现象发生,评价结果与矿山实际情况相符。该方法在矿山岩爆倾向性评价中具有较好的适用性和有效性。Rockburst as a common ground pressure disaster in deep mining,always affect the safety of underground staff,its unique suddenness makes the evaluation of rock explosion tendency become a subject that countless scholars continue to explore.Mathematical methods are widely used in this field.Distance judgment analysis is applied to academic and engineering by many scholars with its unique judgment algorithm.In order to scientifically and effectively apply the distance discriminant analysis method to evaluate the deep rockburst tendency grade of a certain mine,brought together a large number of domestic and international mine rock burst data,and combined with the mine deep situation,six rock burst tendency index were determined.9 sites were selected to be tested at the mine,and the aesthetic experiment was carried out to obtain the rockbrust index of the location of the belt.The Mahalanobis distance theory was used to establish a judgment criterion to determine rock burst tendency of the test data,and the accuracy of the judgment criterion was tested by the backsubstitution misjudgment rate and the cross misjudgment rate.The evaluation results are consistent with the actual situation of the mine.The results show thatthe tendency of rockbrust at the site of X2,X3,X4,X5,X7,X8 and X9 to be measured at a metal mine is in the slight level of rockbrust grade,the tendency of rockbrust at the site of X6 is in the medium level of rockbrust grade,the tendency of rockbrust at the site of X1 is in the high level of rockbrust grade.The actual situation of the mine shows that high rockbrust phenomenon occur at the site of X1.Research shows the method has good applicability and effectiveness in the evaluation of mine rockburst tendency.

关 键 词：岩爆 距离判别分析法 马氏距离 岩爆倾向性 准则评价 岩石力学 硬岩矿山 

分 类 号：TD31[矿业工程—矿井建设]