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Title: Characteristics of rainfall-induced slope instability in Cisokan region, Indonesia
Authors: Krisnanto, Sugeng
Rahardjo, Harianto
Kartiko, Rendy Dwi
Satyanaga, Alfrendo
Nugroho, Joko
Mulyanto, Netto
Santoso, Pudjo
Hendiarto, Achmad
Pamuji, Didit Beny
Rachma, Saraswati Noor
Keywords: Engineering::Environmental engineering
Issue Date: 2021
Source: 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-.
Journal: Journal of Engineering and Technological Sciences
Abstract: 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.
ISSN: 2337-5779
DOI: 10.5614/j.eng.technol.sci.2021.53.5.4
Schools: School of Civil and Environmental Engineering 
Rights: © 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.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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