摘要
将距离判别分析法(DDA)应用于岩爆预测中,建立了岩爆预测的距离判别模型。选取影响岩爆的主要因素,如最大切向应力σ_θ、单轴抗压强度σ_c、单轴抗拉强度σ_t和弹性能量指数W_(et)等4个指标作为判别因子,以岩爆实测样本作为训练样本,建立相应线性判别函数对待判样本进行分类。研究结果表明,距离判别分析模型是岩爆预测的一种有效方法,可以在实际工程中应用。
Based on the principle of Mahalanobis distance discriminant analysis（DDA）,a classification model of the rockburst is established.Four indexes including in-situ stressesσ_θ,uniaxial compressive strengthσ_c and uniaxial tensile strengthσ_t of rock,elastic energy index of rock W_（et） are selected as the discriminant factors for evaluation of rockburst.Linear discriminant functions are obtained through taking measured samples as training samples of rockburst.The results show that the classification model of distance discriminant analysis has excellent performance,and can be used in practical engineering.
出处
《中国矿山工程》
2011年第6期62-64,共3页
China Mine Engineering
关键词
分类
岩爆
预测
距离判别分析
classification
rockburst
prediction
distance discriminant analysis
