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http://dx.doi.org/10.7843/kgs.2012.28.11.5

Local Uncertainty of the Depth to Weathered Soil at Incheon Songdo New City  

Kim, Dong-Hee (Infrastructure Engineering Team, SK E&C Co.)
Ko, Sung-Kwon (Vietnam Business Unit, Posco E&C Co.)
Lee, Woo-Jin (School of Civil, Environmental and Architectural Engrg., Korea Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.28, no.11, 2012 , pp. 5-16 More about this Journal
Abstract
Since geologic data are often sampled at sparse locations, it is important not only to predict attribute values at unsampled locations, but also to assess the uncertainty attached to the prediction. In this paper, the assessment of the local uncertainty of prediction for the depth to weathered soil was performed by using the indicator kriging. A conditional cumulative distribution function (ccdf) was first modeled, and then E-type estimate was computed for the spatial distribution of the depth to the weathered soil. Also, optimal estimate of spatial distribution for the depth to weathered soil was determined by using ccdf and loss function. The design procedure and method considering the minimum expected loss presented in this paper can be used in the decision-making process for geotechnical engineering design.
Keywords
Indicator kriging; Local uncertainty; Loss function; Optimal estimate;
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Times Cited By KSCI : 12  (Citation Analysis)
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