APPLICATION OF DISTANCE DISCRIMINANT ANALYSIS METHOD TO CLASSIFICATION OF ENGINEERING QUALITY OF ROCK MASSES
距离判别分析法在岩体质量等级分类中的应用

Based on the principle of Mahalanobis distance discriminant analysis,a classification model of engineering quality of rock masses is established,including six indexes reflecting the engineering quality of rock masses:uniaxial compressive strength,P-wave velocity in rock,volumetric joint countr,oughness coefficients of joints,weathering coefficients and permeability coefficient of joints.Linear discriminant functions are obtained through training a large set of expansive samples.The results show that the classification model of distance discriminant analysis has excellent performance,high prediction accuracy;and can be used in practical engineering.