Effect of Cᵣ on the performance of Fredlund and Xing (1994)'s equation in best fitting soil-water characteristic curve data
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 recommend...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/164200 |
| _version_ | 1826129527718281216 |
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| author | Wang, Shijun Li, Wanwei Chen, Ziyun Tian, Gang Dai, Guoliang Zhai, Qian Rahardjo, Harianto |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Wang, Shijun Li, Wanwei Chen, Ziyun Tian, Gang Dai, Guoliang Zhai, Qian Rahardjo, Harianto |
| author_sort | Wang, Shijun |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T07:42:04Z |
| format | Journal Article |
| id | ntu-10356/164200 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:42:04Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1642002023-01-09T05:42:43Z Effect of Cᵣ on the performance of Fredlund and Xing (1994)'s equation in best fitting soil-water characteristic curve data Wang, Shijun Li, Wanwei Chen, Ziyun Tian, Gang Dai, Guoliang Zhai, Qian Rahardjo, Harianto School of Civil and Environmental Engineering Engineering::Civil engineering Soil-Water Characteristic Curve Best Fitting 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. Published version The authors would like to acknowledge the financial supports he received from the National Natural Science Foundation of China (No. 51878160, 52078128). 2023-01-09T05:42:43Z 2023-01-09T05:42:43Z 2022 Journal Article 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 2590-1230 https://hdl.handle.net/10356/164200 10.1016/j.rineng.2022.100373 2-s2.0-85124954065 13 100373 en Results in Engineering © 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/). application/pdf |
| spellingShingle | Engineering::Civil engineering Soil-Water Characteristic Curve Best Fitting Wang, Shijun Li, Wanwei Chen, Ziyun Tian, Gang Dai, Guoliang Zhai, Qian Rahardjo, Harianto Effect of Cᵣ on the performance of Fredlund and Xing (1994)'s equation in best fitting soil-water characteristic curve data |
| title | Effect of Cᵣ on the performance of Fredlund and Xing (1994)'s equation in best fitting soil-water characteristic curve data |
| title_full | Effect of Cᵣ on the performance of Fredlund and Xing (1994)'s equation in best fitting soil-water characteristic curve data |
| title_fullStr | Effect of Cᵣ on the performance of Fredlund and Xing (1994)'s equation in best fitting soil-water characteristic curve data |
| title_full_unstemmed | Effect of Cᵣ on the performance of Fredlund and Xing (1994)'s equation in best fitting soil-water characteristic curve data |
| title_short | Effect of Cᵣ on the performance of Fredlund and Xing (1994)'s equation in best fitting soil-water characteristic curve data |
| title_sort | effect of cᵣ on the performance of fredlund and xing 1994 s equation in best fitting soil water characteristic curve data |
| topic | Engineering::Civil engineering Soil-Water Characteristic Curve Best Fitting |
| url | https://hdl.handle.net/10356/164200 |
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