普通Kriging算法的井下煤层面重构  

Application of ordinary kriging in reconstruction of underground coal seam

作　　者：母丽华[1] 杨丽[1] 杨丹[1] MU Lihua YANG Li YANG Dan(School of Sciences, Heilongjiang University of Science ＆ Technology, Harbin 150022, China)

机构地区：[1]黑龙江科技大学理学院,哈尔滨150022

出　　处：《黑龙江科技大学学报》2016年第3期336-339,共4页Journal of Heilongjiang University of Science And Technology

基　　金：黑龙江省自然科学基金项目(A201421)

摘　　要：为认清煤层面分布规律,以山西省朔州市西易易顺煤矿4号煤层的钻井样本为例,采用克里金算法进行井下煤层面重构。根据变差函数理论模型,计算模型参数;通过交叉检验选用球状模型,针对区域化变量的特征,选择普通克里金算法,求解各观测点对应高程值的估计值以及克里金估计方差,调用克里金工具箱绘制煤层曲面,进行误差分析和综合评价。结果表明:普通克里金算法求得估计值与实测值之间的标准误差为4.683 920 1,变异系数为0.020 104 95,能够较为准确地预测井下煤层面的分布结构,为煤矿井下开采的安全预测提供有力的理论支撑。This paper is aimed at a deeper insight into the law underlying the distribution of coal bedding plane as part of the efforts to provide the basis for developing coal mining scheme,and thereby to realize the safe and efficient production of coal mines.The study drawing on the drilling samples derived from the NO.4 coal seams of Xiyi Yishun coal mine at Shuozhou in Shanxi province works towards the surface reconstruction of underground coal seam using Kriging algorithm;the calculation of the model parameters by applying the theoretical variogram model,the selection of spherical models using cross validation,and the selection of the ordinary Kriging method;the production of the elevation values on solving the observation points corresponding to the estimated value and the Kriging variance estimation;the development of coal seam curvature using Kriging toolbox;and the ultimate achievement of error analysis and comprehensive evaluation.The study concludes that the ordinary Kriging algorithm working by the standard error of 4.683 920 1 between the estimated value and the measured value,and the coefficient of variation of 0.020 104 95,may provide an accurate prediction of the distribution structure of the underground coal layer and therefore a powerful theoretical support for the safety of coal mine underground mining.

关 键 词：曲面重构 普通克里金算法 安全预测 

分 类 号：TD17[矿业工程—矿山地质测量] O29[理学—应用数学]