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A Fractal Model to Interpret Porosity-Dependent Hydraulic Properties for Unsaturated Soils
Joint Authors
Zhang, Junran
Zhou, Annan
Fan, Yang
Cheng, Wen-Chieh
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-08
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
This paper presents a simple fractal model to quantify the effects of initial porosity on the soil-water retention curve and hydraulic conductivity of unsaturated soils.
In the proposed conceptual model, the change of maximum pore radius, which largely determines the change of the air-entry value, is directly related to the fractal dimension of pore volume (D) and porosity change.
The hydraulic properties of unsaturated soils are then governed by the maximum pore radius, the fractal dimension of pore volume (D), and the fractal dimension of drainable pore volume (Dd ≤ D).
The new fractal model removes the empirical fitting parameters that have no physical meaning from existing models for porosity-dependent water retention and hydraulic behaviour and employs parameters of fractal dimensions that are intrinsic to the nature of the fractal porous materials.
The proposed model is then validated against experimental data from the literature on soil-water retention behaviour and unsaturated conductivity.
American Psychological Association (APA)
Zhou, Annan& Fan, Yang& Cheng, Wen-Chieh& Zhang, Junran. 2019. A Fractal Model to Interpret Porosity-Dependent Hydraulic Properties for Unsaturated Soils. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1116093
Modern Language Association (MLA)
Zhou, Annan…[et al.]. A Fractal Model to Interpret Porosity-Dependent Hydraulic Properties for Unsaturated Soils. Advances in Civil Engineering No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1116093
American Medical Association (AMA)
Zhou, Annan& Fan, Yang& Cheng, Wen-Chieh& Zhang, Junran. A Fractal Model to Interpret Porosity-Dependent Hydraulic Properties for Unsaturated Soils. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1116093
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116093