矿区立井井筒非采动破裂的距离判别分析预测法  

A distance discriminant analysis method of forecast for shaft-lining non-mining fracture of mine

作　　者：宫凤强[1] 李夕兵[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》2007年第7期700-704,共5页Journal of China Coal Society

基　　金：国家自然科学基金重大项目(50490274)

摘　　要：将距离判别分析方法应用于矿区立井井筒非采动破裂的预测问题中,建立了井筒非采动破裂的距离判别分析模型.选用表土层厚度、底含厚度、底含水位速降、井筒外径、井壁厚度和井筒投入使用时间6项指标作为距离判别分析模型的判别因子,以历史上工程实测数据作为学习样本进行训练,建立相应判别函数对工程实例进行预测.研究结果表明,距离判别分析模型分类性能良好,预测精度高,回判估计的误判率很低.Based on the principle of Mahalanobis distance discriminant analysis, a forcast model of shaft-lining non-mining fracture of mine was established. Six factor indexes including uniaxial compressive strength, p-wave velocity in rock, volumetric joint count, joint roughness coefficients, joint weathering coefficients and permeability coefficient, were regarded as discriminant factor of the model. Discriminant functions were obtained through training a large set of historical engineering geological samples. The results show that the classification model of distance discriminant analysis excellent performance, high prediction accuracy.

关 键 词：立井井筒 非采动破裂 距离判别分析 

分 类 号：TD262.5[矿业工程—矿井建设]