Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/144384
Title: Role of the pore-size distribution function on water flow in unsaturated soil
Authors: Zhai, Qian
Rahardjo, Harianto
Satyanaga, Alfrendo
Priono
Dai, Guo-liang
Keywords: Engineering::Civil engineering
Issue Date: 2018
Source: Zhai, Q., Rahardjo, H., Satyanaga, A., Priono, & Dai, G.-l. (2019). Role of the pore-size distribution function on water flow in unsaturated soil. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 20(1), 10-20. doi:10.1631/jzus.A1800347
Journal: Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)
Abstract: The hydraulic properties of soil (i.e. soil-water characteristic curve (SWCC) and coefficient of permeability) govern the moisture flow in it. Previous research has indicated that the hydraulic properties of soil are dependent on its pore-size distribution. An improved capillary model is now proposed to explain the concept of the pore-size distribution in soil and its relationship to SWCC. A new model, the “valve model”, is also proposed as the explanation for water flow in unsaturated soil. The pore-size distribution function is incorporated in the “valve model” and is used to calculate the relative coefficient of permeability for unsaturated soil. In this paper, the role of the pore-size distribution function in the estimation of SWCC and the permeability function are explained. Equations are proposed for estimating the pore-size distribution function from the experimental data of relative coefficient of permeability. The results from the proposed equations agree with the experimental data from laboratory measurement and published data.
URI: https://hdl.handle.net/10356/144384
ISSN: 1673-565X
DOI: 10.1631/jzus.A1800347
Rights: © 2019 Zhejiang University and Springer-Verlag. All rights reserved. This paper was published by Springer Nature in Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering) and is made available with permission of Zhejiang University and Springer-Verlag.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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