›› 2009, Vol. 30 ›› Issue (1): 157-162.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Kriging interpolation and its application to generating stratum model

LI Xiao-jun1 ,2, WANG Chang-hong2, ZHU He-hua1, 2   

  1. 1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China; 2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
  • Received:2007-07-05 Online:2009-01-10 Published:2011-01-14

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Abstract:

In order to generate 3-dimensional digital stratum, a stratum data model of tri-prism is presented based on borehole data, which is applicable to urban geological engineering and geotechnical engineering. Due to the variant distribution and different attributive values among boreholes, the geological properties at unknown locations have to be estimated or interpolated by some special methods. However, common statistical methods could not resolve such problem which includes selection of sample points, spatial estimation and comparison of bilateral data. A distance-weighted interpolation method for scattered borehole data points is proposed, which exploits the Kriging method in geostatistics. On the premise that the distributed statistics characters of the spatial borehole data are obtained at first; according to the distributed statistics characters, the spatial interpolation is presented successively. Case study shows that the generation of 3-dimensional stratum by proposed interpolation methods can gives a good result.

Key words: Kriging method, borehole, stratum data model, spatial scattered points interpolation, variogram function

CLC Number: 

  • O 241.1
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