Kriging method for parameter estimation and its application to geo-engineering

SUN Qiang; XUE Lei; WANG Yuan-yuan

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Kriging method for parameter estimation and its application to geo-engineering

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- Kriging method for parameter estimation and its application to geo-engineering
- Vol. 30, Issue S2, (2009)
- 作者机构：
  
  1. 中国科学院地质与地球物理研究所工程地质力学重点实验室,北京,100029
  2. 中国矿业大学资源与地球科学学院,徐州,211008
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU45
- Online First：21 June 2011，
  
  Published：2009
- 稿件说明：
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SUN Qiang, XUE Lei, WANG Yuan-yuan. Kriging method for parameter estimation and its application to geo-engineering[J]. 2009, 30(S2).
DOI：

SUN Qiang, XUE Lei, WANG Yuan-yuan. Kriging method for parameter estimation and its application to geo-engineering[J]. 2009, 30(S2). DOI：

摘要

为考虑岩土介质参数的空间分布的结构性和随机性等不确定因素，引入了克里金参数估值法。采用变异函数描述参数在空间结构上的变化，建立其空间变异规律的数学模型，从而实现对岩土参数的估值。通过实例分析揭示了克里金估值法具有反映“过滤效应”和“集团效应”的优点，对不同位置的数据赋予不同的权重系数，能够有效地反映参数空间变异结构，有利于对参数的合理化分析

Abstract

Geo-mechanical parameters have structural and stochastic properties on spatial variability

which causes the uncertainty of geo-mechanical parameters. The Kriging method and variant function are used for analyzing the spatial variability of geo-mechanical parameters of rock and soil. Theoretical model of variant function is employed as the mathematical model for depicting the spatial variability law of geo-mechanical parameters. Demonstrated by example

the Kriging method for parameter estimation is revealed the filtration effect and agglomeration effect. The different weight coefficients can effectively provide the variability estimation of geo-mechanical parameters.

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