The potential of shear wave velocity as an erosion risk index
Soil erosion is a captious environmental problem in regions of hot tropical climates, causing loss of land and natural disasters such as river sedimentation, flooding, and slope failures. Based on soil properties and their response to erosion agents, efforts have been made to develop simplified mode...
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my.utm.1062602024-06-20T03:01:08Z http://eprints.utm.my/106260/ The potential of shear wave velocity as an erosion risk index Abd. Rahman, Norinah Rehman, Muhammad Ali Zahari, Nur Afiqah Mohd. Taib, Aizat Wan Mohtar, Wan Hanna Melini Ramli, Ahmad Bukhari Ibrahim, Aniza Abang Hasbollah, Dayang Zulaika Mitu, Sadia Mannan Nurddin, Mohamad Faizal Q Science (General) TA Engineering (General). Civil engineering (General) Soil erosion is a captious environmental problem in regions of hot tropical climates, causing loss of land and natural disasters such as river sedimentation, flooding, and slope failures. Based on soil properties and their response to erosion agents, efforts have been made to develop simplified models and indices for the estimation of erosion. ROM scale is proven to be effective in forecasting risk levels for erosion assessment. However, the method requires soil sampling and laboratory experimentation, which is time-consuming and laborious, especially when analyzing huge areas. Therefore, this study aims to develop a relation between ROM scale and shear wave velocity estimated by the spectral-analysis-of-surface-waves (SASW) method. For this purpose, 36 soil samples were extracted, and twelve SASW tests were conducted at twelve sites identified along Sungai Langat. Soil particle distribution was carried out to calculate the ROM erosion index value for all the extracted soil samples. The fast Fourier Transform (FFT) algorithm was used to transform the time-recorded signals into the frequency domain, and the dispersion curves were generated after the masking process. The shear wave velocity erosion risk ranged from 10 m/s to 120 m/s, indicating critical risk and low risk, respectively. Low erosion risk levels were observed for high shear wave velocity values, representing a decaying pattern in exponential relation. The resulting correlation between ROM scale and shear wave velocity produced a coefficient of determination value of 0.71, indicating a strong relation. This study indicated the potential of shear wave velocity as an erosion risk index. Elsevier Ltd 2023-02 Article PeerReviewed Abd. Rahman, Norinah and Rehman, Muhammad Ali and Zahari, Nur Afiqah and Mohd. Taib, Aizat and Wan Mohtar, Wan Hanna Melini and Ramli, Ahmad Bukhari and Ibrahim, Aniza and Abang Hasbollah, Dayang Zulaika and Mitu, Sadia Mannan and Nurddin, Mohamad Faizal (2023) The potential of shear wave velocity as an erosion risk index. Physics and Chemistry of the Earth, 129 (NA). NA. ISSN 1474-7065 http://dx.doi.org/10.1016/j.pce.2022.103302 DOI:10.1016/j.pce.2022.103302 |
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Q Science (General) TA Engineering (General). Civil engineering (General) Abd. Rahman, Norinah Rehman, Muhammad Ali Zahari, Nur Afiqah Mohd. Taib, Aizat Wan Mohtar, Wan Hanna Melini Ramli, Ahmad Bukhari Ibrahim, Aniza Abang Hasbollah, Dayang Zulaika Mitu, Sadia Mannan Nurddin, Mohamad Faizal The potential of shear wave velocity as an erosion risk index |
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Soil erosion is a captious environmental problem in regions of hot tropical climates, causing loss of land and natural disasters such as river sedimentation, flooding, and slope failures. Based on soil properties and their response to erosion agents, efforts have been made to develop simplified models and indices for the estimation of erosion. ROM scale is proven to be effective in forecasting risk levels for erosion assessment. However, the method requires soil sampling and laboratory experimentation, which is time-consuming and laborious, especially when analyzing huge areas. Therefore, this study aims to develop a relation between ROM scale and shear wave velocity estimated by the spectral-analysis-of-surface-waves (SASW) method. For this purpose, 36 soil samples were extracted, and twelve SASW tests were conducted at twelve sites identified along Sungai Langat. Soil particle distribution was carried out to calculate the ROM erosion index value for all the extracted soil samples. The fast Fourier Transform (FFT) algorithm was used to transform the time-recorded signals into the frequency domain, and the dispersion curves were generated after the masking process. The shear wave velocity erosion risk ranged from 10 m/s to 120 m/s, indicating critical risk and low risk, respectively. Low erosion risk levels were observed for high shear wave velocity values, representing a decaying pattern in exponential relation. The resulting correlation between ROM scale and shear wave velocity produced a coefficient of determination value of 0.71, indicating a strong relation. This study indicated the potential of shear wave velocity as an erosion risk index. |
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Abd. Rahman, Norinah Rehman, Muhammad Ali Zahari, Nur Afiqah Mohd. Taib, Aizat Wan Mohtar, Wan Hanna Melini Ramli, Ahmad Bukhari Ibrahim, Aniza Abang Hasbollah, Dayang Zulaika Mitu, Sadia Mannan Nurddin, Mohamad Faizal |
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Abd. Rahman, Norinah Rehman, Muhammad Ali Zahari, Nur Afiqah Mohd. Taib, Aizat Wan Mohtar, Wan Hanna Melini Ramli, Ahmad Bukhari Ibrahim, Aniza Abang Hasbollah, Dayang Zulaika Mitu, Sadia Mannan Nurddin, Mohamad Faizal |
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Abd. Rahman, Norinah |
title |
The potential of shear wave velocity as an erosion risk index |
title_short |
The potential of shear wave velocity as an erosion risk index |
title_full |
The potential of shear wave velocity as an erosion risk index |
title_fullStr |
The potential of shear wave velocity as an erosion risk index |
title_full_unstemmed |
The potential of shear wave velocity as an erosion risk index |
title_sort |
potential of shear wave velocity as an erosion risk index |
publisher |
Elsevier Ltd |
publishDate |
2023 |
url |
http://eprints.utm.my/106260/ http://dx.doi.org/10.1016/j.pce.2022.103302 |
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1802977250853781504 |
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13.188404 |