摘要
应用普通克里格法对煤矿床估值的关键在于理论变异函数的获取,因此采用地质统计学软件GEO-EAS进行变异函数的拟合。地质统计学考虑到地质变量的空间变化特征,比经典统计学估值准确。GEO-EAS是对二维变量空间分布进行地质统计分析的交互式软件包,能够实现变异函数的计算与模拟。通过其PREVAO与VARIO模块,对数据预处理,以不同间隔进行组合形成数据点对的距离和方向信息,并能够合理的剔除异常数据,进而实现了对平朔公司安家岭露天矿4#煤灰分变异函数的拟合。
The key point of kriging apphcation in coal bed evaluation the model fitting of variogram, so the use of GEO-EAS software is a better method. Geostatistical theory is more reasonable than classical statistics because it takes geological variable＇s spatial variance characteristics into consideration. GEO-EAS interactive software package can count and analyse the spatial distribution of two-dimensional variable with geostatistical theory, and also, can compute and model fit the variogram. The original data is combined into pairs to form their distance and direction information through its PREVAO and VARIO modules, at the same time, abnormal data could be cancelled in reason. At last, a surface coal mine is studied, GEO-EAS software is used to model fitting ash variogram of 4^# coal of Anjialing surface mine of Pingshuo coal industry company.
出处
《露天采矿技术》
CAS
2009年第3期1-3,共3页
Opencast Mining Technology
