Autocorrelation Functions for Offshore Geotechnical Data

by J. M. Keaveny, Norwegian Geotechnical Inst, Norway,
F. Nadim, Norwegian Geotechnical Inst, Norway,
S. Lacasse, Norwegian Geotechnical Inst, Norway,

Document Type: Proceeding Paper

Part of: Structural Safety and Reliability


Autocorrelation functions are described. Data from several North Sea sites are analyzed with respect to the vertical and horizontal autocorrelation of a number of soil properties. Based on these analyses, a simple method for estimating autocorrelation functions is recommended. The use of autocorrelation functions for describing a site probabilistically, in particular for stochastic interpolation (kriging) and reduction of uncertainty due to spatial averaging, is discussed.

Subject Headings: Soil properties | Geotechnical data | Offshore structures | Probability | Stochastic processes | Geotechnical engineering | Kriging | Structural reliability | North Sea

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