Principles of Probabilistic Characterizations of Soil Properties

by Wilson H. Tang, Univ of Illinois at, Urbana-Champaign, Urbana, IL, USA,



Document Type: Proceeding Paper

Part of: Probabilistic Characterization of Soil Properties: Bridge Between Theory and Practice

Abstract:

Sources of uncertainties affecting characterization of soil properties in a homogeneous soil layer include inherent spatial variability, systematic test bias, random test errors, calibration errors, and estimation error from insufficient samples. These individual contributions are modeled and analyzed with respect to the available data and information. Relevant soil parameters governing most geotechnical performances are spatial average soil properties over some domain of the soil layer. A simplified method is proposed to incorporate the major sources of uncertainties in determining the statistics of these spatial average soil properties.

Subject Headings: Soil properties | Errors (statistics) | Layered soils | Uncertainty principles | Parameters (statistics) | Soil tests | Probability

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