Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/164200
Title: Effect of Cᵣ on the performance of Fredlund and Xing (1994)'s equation in best fitting soil-water characteristic curve data
Authors: Wang, Shijun
Li, Wanwei
Chen, Ziyun
Tian, Gang
Dai, Guoliang
Zhai, Qian
Rahardjo, Harianto
Keywords: Engineering::Civil engineering
Issue Date: 2022
Source: Wang, S., Li, W., Chen, Z., Tian, G., Dai, G., Zhai, Q. & Rahardjo, H. (2022). Effect of Cᵣ on the performance of Fredlund and Xing (1994)'s equation in best fitting soil-water characteristic curve data. Results in Engineering, 13, 100373-. https://dx.doi.org/10.1016/j.rineng.2022.100373
Journal: Results in Engineering
Abstract: Fredlund and Xing (1994)'s equation is one of most popular equations in best fitting the soil-water characteristic curve (SWCC) data. It is commonly considered that the parameters of the equation such as a, n and m are the fitting parameters and Cr is an input value, which is commonly recommended that Cr to be1500 kPa or 3000 kPa. Based on the analysis in this paper, it is observed that setting Cr to be equal to 1500 kPa or 3000 kPa may downgrade the performance of Fredlund and Xing (1994)'s equation in best fitting the SWCC data of soils with a high air-entry value (AEV). It is recommended the air-entry value (AEV) of the soil is roughly estimated before the best fitting process and set Cr to be 100 times of the estimated AEV for the best regression analysis.
URI: https://hdl.handle.net/10356/164200
ISSN: 2590-1230
DOI: 10.1016/j.rineng.2022.100373
Rights: © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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