克里金插值在冲击矿压空间预警中的应用Application of Kriging in rock burst space forecasting-warning
柴炳阳,白登辉,郑鹏民,李嫣,王中元
摘要(Abstract):
为了探索在冲击矿压空间预警过程中,使用不同的插值方法对预警云图精度的影响,从而找出精度高的插值方法予以应用。该文分别使用了基于地统计分析的克里金插值、确定性插值方法中的反距离权重插值和径向基函数插值,对古城煤矿的冲击矿压空间预警云图进行预测并交叉验证,并以均方根误差作为衡量标准。结果表明:从冲击矿压空间预警云图效果来看,基于地统计分析的克里金插值与另外两种插值方法生成的空间预警云图相比,内容表达更丰富、区域特征体现更确切;从预测值与测量值的回归图像来看,克里金插值的回归直线同标准线基本重合,优于另外两种插值方法;从均方根误差的折线图可以看出,使用克里金插值生成的空间预警云图的精度比反距离权重插值法和径向基函数插值法分别提高18%、25%左右。
关键词(KeyWords): 冲击矿压;空间预警;地统计分析;克里金插值;交叉验证
基金项目(Foundation): 江苏省自然科学基金项目(BK20181361);; 中国矿业大学研究生教育教学改革研究与实践项目(2017Y02)
作者(Author): 柴炳阳,白登辉,郑鹏民,李嫣,王中元
DOI: 10.16251/j.cnki.1009-2307.2020.08.025
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