Characteristics of rainfall-induced slope instability in Cisokan region, Indonesia
A 25.5 km long access road has been constructed in a hilly area in Cisokan region. Several slope instabilities occurred during the rainy season, particularly at the end of heavy rainfall. A comprehensive study was performed to understand the characteristics of rainfall-induced slope instability. The...
| 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/10356/164427 |
| _version_ | 1811683725185908736 |
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| author | Krisnanto, Sugeng Rahardjo, Harianto Kartiko, Rendy Dwi Satyanaga, Alfrendo Nugroho, Joko Mulyanto, Netto Santoso, Pudjo Hendiarto, Achmad Pamuji, Didit Beny Rachma, Saraswati Noor |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Krisnanto, Sugeng Rahardjo, Harianto Kartiko, Rendy Dwi Satyanaga, Alfrendo Nugroho, Joko Mulyanto, Netto Santoso, Pudjo Hendiarto, Achmad Pamuji, Didit Beny Rachma, Saraswati Noor |
| author_sort | Krisnanto, Sugeng |
| collection | NTU |
| description | A 25.5 km long access road has been constructed in a hilly area in Cisokan region. Several slope instabilities occurred during the rainy season, particularly at the end of heavy rainfall. A comprehensive study was performed to understand the characteristics of rainfall-induced slope instability. The study consisted of field observation, analyses of field and laboratory test data, and numerical analyses. The study revealed that in general there were two categories of slopes with instability characteristics: (i) slopes with a significant groundwater level increase during rainfall; (ii) slopes with an insignificant groundwater level increase during rainfall. In the first category, the slope instability was caused by a loss of matric suction and eventually the pore-water pressure, uw became positive as indicated by an increase of the groundwater level. In the second category, the slope instability was caused by a loss of matric suction without a rise in pore-water pressure, uw, to a positive magnitude. Two empirical curves of slope stability were developed as a preliminary guidance to assess slope stability during rainfall in the region. |
| first_indexed | 2024-10-01T04:17:18Z |
| format | Journal Article |
| id | ntu-10356/164427 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:17:18Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1644272023-01-25T00:40:22Z Characteristics of rainfall-induced slope instability in Cisokan region, Indonesia Krisnanto, Sugeng Rahardjo, Harianto Kartiko, Rendy Dwi Satyanaga, Alfrendo Nugroho, Joko Mulyanto, Netto Santoso, Pudjo Hendiarto, Achmad Pamuji, Didit Beny Rachma, Saraswati Noor School of Civil and Environmental Engineering Engineering::Environmental engineering Empirical Slope Stability Curve Rainfall-Induced Slope Instability A 25.5 km long access road has been constructed in a hilly area in Cisokan region. Several slope instabilities occurred during the rainy season, particularly at the end of heavy rainfall. A comprehensive study was performed to understand the characteristics of rainfall-induced slope instability. The study consisted of field observation, analyses of field and laboratory test data, and numerical analyses. The study revealed that in general there were two categories of slopes with instability characteristics: (i) slopes with a significant groundwater level increase during rainfall; (ii) slopes with an insignificant groundwater level increase during rainfall. In the first category, the slope instability was caused by a loss of matric suction and eventually the pore-water pressure, uw became positive as indicated by an increase of the groundwater level. In the second category, the slope instability was caused by a loss of matric suction without a rise in pore-water pressure, uw, to a positive magnitude. Two empirical curves of slope stability were developed as a preliminary guidance to assess slope stability during rainfall in the region. Published version 2023-01-25T00:40:22Z 2023-01-25T00:40:22Z 2021 Journal Article Krisnanto, S., Rahardjo, H., Kartiko, R. D., Satyanaga, A., Nugroho, J., Mulyanto, N., Santoso, P., Hendiarto, A., Pamuji, D. B. & Rachma, S. N. (2021). Characteristics of rainfall-induced slope instability in Cisokan region, Indonesia. Journal of Engineering and Technological Sciences, 53(5), 210504-. https://dx.doi.org/10.5614/j.eng.technol.sci.2021.53.5.4 2337-5779 https://hdl.handle.net/10356/164427 10.5614/j.eng.technol.sci.2021.53.5.4 2-s2.0-85120074310 5 53 210504 en Journal of Engineering and Technological Sciences © 2021 Published by ITB Institute for Research and Community Services. This is an open-access article distributed under the terms of the Creative Commons Attribution License. application/pdf |
| spellingShingle | Engineering::Environmental engineering Empirical Slope Stability Curve Rainfall-Induced Slope Instability Krisnanto, Sugeng Rahardjo, Harianto Kartiko, Rendy Dwi Satyanaga, Alfrendo Nugroho, Joko Mulyanto, Netto Santoso, Pudjo Hendiarto, Achmad Pamuji, Didit Beny Rachma, Saraswati Noor Characteristics of rainfall-induced slope instability in Cisokan region, Indonesia |
| title | Characteristics of rainfall-induced slope instability in Cisokan region, Indonesia |
| title_full | Characteristics of rainfall-induced slope instability in Cisokan region, Indonesia |
| title_fullStr | Characteristics of rainfall-induced slope instability in Cisokan region, Indonesia |
| title_full_unstemmed | Characteristics of rainfall-induced slope instability in Cisokan region, Indonesia |
| title_short | Characteristics of rainfall-induced slope instability in Cisokan region, Indonesia |
| title_sort | characteristics of rainfall induced slope instability in cisokan region indonesia |
| topic | Engineering::Environmental engineering Empirical Slope Stability Curve Rainfall-Induced Slope Instability |
| url | https://hdl.handle.net/10356/164427 |
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