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Two-dimensional Coupled Moisture and Heat Flow Model and Sensitivity Analysis  

Kim, Suk-Nam (Korea Land Corp., Land Research Institute)
Publication Information
Journal of the Korean Geotechnical Society / v.19, no.5, 2003 , pp. 99-107 More about this Journal
Abstract
Moisture flow and heat flow within pavement systems have been recognized as coupled processes with complex interactions between them. The distribution of moisture and temperature within pavement due to the moisture flow and heat flow varies not only seasonally but also vertically and horizontally. This paper presents an analysis model by the finite element method for the two-dimensional coupled moisture and heat flow in unsaturated soils. To test the model the analysis result by the model is compared with the analysis result by the software, GEO-SLOPE developed by GEO-SLOPE International Ltd. in Alberta, Canada. And a sensitivity analysis using ASTM method is performed to identify how model inputs affect the modeling analysis.
Keywords
Heat flow; Moisture flow; Pavement; Sensitivity analysis; Soil-water characteristic curve; Unsaturated soil;
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