急倾斜煤层顶煤可放性分类预测的Fisher判别分析模型及应用  

A Fisher discriminant analysis model for classifying top coal cavability of the steep seam

作　　者：董陇军[1] 李夕兵[1] 白云飞[1] 

机构地区：[1]中南大学资源与安全工程学院,湖南长沙410083

出　　处：《煤炭学报》2009年第1期58-63,共6页Journal of China Coal Society

基　　金：国家自然科学基金重点资助项目(50490274);中南大学米塔尔创新项目(07MX14);中南大学学位论文创新重点资助项目(1343-74335000020)

摘　　要：基于Fisher判别理论建立了急倾斜煤层顶煤可放性分类的Fisher判别分析模型.选取老顶、直接顶、底板、瓦斯、采深、倾角、煤层厚度、坚固性系数、夹矸等9项指标作为Fisher判别分析模型的分类判别指标.利用国内矿区急倾斜煤层可放性分类实例数据作为训练样本进行训练,建立顶煤可放性分类的Fisher判别分析模型,求得判别函数.用建立的模型对5个矿山的急倾斜煤层顶煤可放性进行分类预测,结果与实际情况符合良好.Based on Fisher discriminant theory, classifying top coal cavability of the steep seam. roof, floor, mine gas, mining depth, dip angle, a Fisher discriminant analysis model （FDA） was established for Nine major top coal cavability factors such as main roof, immediate thickness, hardness coefficient, dirt bands were regarded as the discriminant factors of the FDA model. A series of measured data of top coal cavability in the steep seam mines of China were taken as the training and testing samples. The discriminant functions were also calculated. Five samples of top coal cavability of the steep seam were used to verify this model. The results show that the prediction accuracy is high.

关 键 词：急倾斜煤层 顶煤可放性 分类预测 Fisher判别分析模型 

分 类 号：TD823.213[矿业工程—煤矿开采]