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

基于Fisher判别理论建立了急倾斜煤层项煤可放性分类的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.

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

Based on Fisher discriminant theory,a Fisher discriminant analysis model(FDA) was established for classifying top coal cavability of the steep seam.Nine major top coal cavability factors such as main roof,immediate roof,floor,mine gas,mining depth,dip angle,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 functio...