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|Title:||Characterization of geotechnical variability|
|Authors:||Phoon, K.-K. |
|Keywords:||Coefficient of variation|
Inherent soil variability
Scale of fluctuation
|Source:||Phoon, K.-K.,Kulhawy, F.H. (1999-08). Characterization of geotechnical variability. Canadian Geotechnical Journal 36 (4) : 612-624. ScholarBank@NUS Repository.|
|Abstract:||Geotechnical variability is a complex attribute that results from many disparate sources of uncertainties. The three primary sources of geotechnical uncertainties are inherent variability, measurement error, and transformation uncertainty. Inherent soil variability is modeled as a random field, which can be described concisely by the coefficient of variation (COV) and scale of fluctuation. Measurement error is extracted from field measurements using a simple additive probabilistic model or is determined directly from comparative laboratory testing programs. Based on an extensive literature review, the COV of inherent variability, scale of fluctuation, and COV of measurement error are evaluated in detail, along with the general soil type and the approximate range of mean value for which the COVs are applicable. Transformation uncertainty and overall property uncertainty are quantified in a companion paper.|
|Source Title:||Canadian Geotechnical Journal|
|Appears in Collections:||Staff Publications|
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