›› 2009, Vol. 30 ›› Issue (S2): 371-373.

• Geotechnical Engineering • Previous Articles     Next Articles

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

SUN Qiang1, 2, XUE Lei1, WANG Yuan-yuan1   

  1. 1.Key Laboratory of Engineering Geomechanics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China; 2.School of Resources and Earth Science, China University of Mining & Technology, Xuzhou 211008, China
  • Received:2009-07-25 Online:2009-08-10 Published:2011-06-21

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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.

Key words: mechanical parameters of rock and soil, Kriging, weight coefficient, spatial heterogeneity, variant function

CLC Number: 

  • TU 45
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