摘要
本文较详细介绍了指示克立格估值的基本方法和原理,以指示变异函数为基本工具分析了向家坝坝址区裂隙岩体渗透性空间分布的结构特征,表明该址区裂隙岩体渗透性存在明显的各向异性特征;在此基础上用指示克立格法对未采样点处进行估值,估值结果显示坝址区裂隙岩体渗透性存在明显的壳状渗透结构特征.通过这一实际应用,表明指示克立格法可以较好地描述裂隙岩体渗透性的空间分布规律.
A detail description of indicator kriging theory and method is given by this paper. In this paper structural analyse of spatial information research on permeability of fractural rock mass in the Xiangjiaba dam site has anisotropy obviously. By studying the characters of spatial distributing variability regularity of with indicator Kriging,its spatial structure model was constructed and there is a shell structure on permeability in the dam site. The application of indicator kriging in estimating permeability of fractural rock mass indicates indicator kriging can describe precisely the spatial distribution law of permeability of fractural rock mass.
出处
《地球物理学进展》
CSCD
北大核心
2005年第1期246-251,共6页
Progress in Geophysics
基金
国家自然科学基金(40072079)资助.
关键词
变异函数
指示克里金
裂隙岩体
渗透性
Variogram, Indicator Kriging, Permeability,fractural rock mass
