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http://dx.doi.org/10.7843/kgs.2021.37.1.17

An Interpretation of Soil Water Retention Curves of Weathered Soils Using Micro-Membrane  

Oh, Seboong (Dept. of Civil Engrg., Yeungnam Univ.)
Kim, Seongjin (Dept. of Civil Engrg., Yeungnam Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.37, no.1, 2021 , pp. 17-27 More about this Journal
Abstract
It takes a long period to conduct the test on soil water retention curve (SWRC) in unsaturated soils. To improve such a problem, the high air entry disk has been replaced by micro-membrane. After the soil water retention test, the results by the micro-membrane were compared with those by the ceramic disk. Multiple samples in 5 regions were used to validate that SWRCs by micro-membrane are equivalent to those by ceramic disk. Therefore, a quick procedure based on micro-membrane has been developed, which makes it available to acquire much soil water retention data. The data of SWRCs were obtained for total 29 samples using ceramic disk or micro-membrane. For Korean weathered soils, the unsaturated hydraulic characteristics are sorted by three groups. Based on van Genuchten model, the group is divided by the parameter n, and the value of n could be correlated to the void ratio as each function.
Keywords
Fine particles; Soil water retention curves; Unsaturated soils; Void ratio; Weathered soils;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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