Numerical analysis study on determination of unfrozen water saturation curve for sandy soil
- Authors
- Yoon, Seok; Go, Gyu-Hyun
- Issue Date
- May-2024
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Frozen sandy soil; Unfrozen -water saturation curve; Numerical analysis; Needle probe test; Analytical solution
- Citation
- INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, v.154
- Journal Title
- INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
- Volume
- 154
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/28706
- DOI
- 10.1016/j.icheatmasstransfer.2024.107418
- ISSN
- 0735-1933
1879-0178
- Abstract
- The presence of unfrozen water in frozen soils considerably affects the thermal, hydraulic, and mechanical behaviors of the ground. A thorough examination and accurate estimation of the unfrozen-water saturation curve of target soil materials are required to reliably predict the behavior of frozen soils. This study presents a methodology for accurately determining the curve-fitting coefficients included in an empirical model equation. This study differentiates itself from existing research by presenting a method for easily determining the fitting curve coefficient of empirical unfrozen water saturation model through simple freezing experiment data (time-temperature data) and iterative calculation of numerical analysis. An appropriate unfrozen-water saturation curve of sandy soil specimens was obtained by conducting iterative numerical analyses based on indoor experimental data. The reliability of the determined unfrozen-water saturation curve was evaluated by comparing the simulation results for a single freeze-pipe freezing example with an analytical solution.
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- Appears in
Collections - Department of Civil Engineering > 1. Journal Articles
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