Effect of Porosity on Soil-Water Retention Curves: Theoretical and Experimental Aspects
Joint Authors
Zhou, Hongbo
Tong, Fuguo
Yan, Long
Hao, Shuang
Liu, Chang
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-12-22
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Porosity change is a common characteristic of natural soils in fluid-solid interaction problems, which can lead to an obvious change of the soil-water retention curve (SWRC).
The influence of porosity on soil water retention phenomena is investigated by a theoretical model and an experimental test in this study.
A model expressing the change in suction with porosity and effective saturation is put forward theoretically.
The model is based on an idealization of three-phase porous materials, the pore structures of which are homogeneous and isotropic.
It accounts for the porosity effect on soil water retention, using four parameters with clear physical meanings.
The presented model can obtain the SWRC at any porosity, which will reduce the test number required in characterizing the hydraulic behavior of soil.
A laboratory experiment for loamy sand with different porosities is performed.
The test results show that suction has a significant variation with changes in porosity and decreases with the increase of porosity.
The formulation is verified by both the test data and the literature data for FEBEX bentonite and Boom clay.
The very good agreements between measured and predicted results show that the SWRC model is reliable and feasible for various soils.
American Psychological Association (APA)
Liu, Chang& Tong, Fuguo& Yan, Long& Zhou, Hongbo& Hao, Shuang. 2020. Effect of Porosity on Soil-Water Retention Curves: Theoretical and Experimental Aspects. Geofluids،Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1165080
Modern Language Association (MLA)
Liu, Chang…[et al.]. Effect of Porosity on Soil-Water Retention Curves: Theoretical and Experimental Aspects. Geofluids No. 2020 (2020), pp.1-8.
https://search.emarefa.net/detail/BIM-1165080
American Medical Association (AMA)
Liu, Chang& Tong, Fuguo& Yan, Long& Zhou, Hongbo& Hao, Shuang. Effect of Porosity on Soil-Water Retention Curves: Theoretical and Experimental Aspects. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1165080
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1165080