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Effectiveness of siphon drainage method for landslide stabilization in a tropical volcanic hillslope: a case study of Cibitung Landslide, West Java, Indonesia
https://orcid.org/0000-0002-6662-0697
Abstract An effort to implement a siphon drainage system requires a comprehensive knowledge of the factor affecting the performance of the drainage system to reduce the groundwater table in the landslide area. A long-term field experiment was conducted to evaluate the effectiveness of the siphon drainage system with vertical wells to maintain the stability of landslide masses in a volcanic hillslope in West Java. The groundwater levels in all wells and water discharged from each well were monitored and measured periodically. Results of a 1-year measurement of the groundwater level indicate that the siphon drainage system was generally effective in decreasing the groundwater level in the landslide masses to a maximum depth of 7 m with a maximum total drainage flow of 24 $ m^{3} $/day. The implemented siphon drainage system was also able to prevent the groundwater level from rising during a rainfall period. A series of slope stability analyses under a steady-unsteady state seepage condition indicates the siphon drainage increased the long-term stability of the landslide area significantly. Based on this study, factors affecting the effectiveness of long-term siphon drainage performance are thoroughly evaluated.
Effectiveness of siphon drainage method for landslide stabilization in a tropical volcanic hillslope: a case study of Cibitung Landslide, West Java, Indonesia
https://orcid.org/0000-0002-6662-0697
Abstract An effort to implement a siphon drainage system requires a comprehensive knowledge of the factor affecting the performance of the drainage system to reduce the groundwater table in the landslide area. A long-term field experiment was conducted to evaluate the effectiveness of the siphon drainage system with vertical wells to maintain the stability of landslide masses in a volcanic hillslope in West Java. The groundwater levels in all wells and water discharged from each well were monitored and measured periodically. Results of a 1-year measurement of the groundwater level indicate that the siphon drainage system was generally effective in decreasing the groundwater level in the landslide masses to a maximum depth of 7 m with a maximum total drainage flow of 24 $ m^{3} $/day. The implemented siphon drainage system was also able to prevent the groundwater level from rising during a rainfall period. A series of slope stability analyses under a steady-unsteady state seepage condition indicates the siphon drainage increased the long-term stability of the landslide area significantly. Based on this study, factors affecting the effectiveness of long-term siphon drainage performance are thoroughly evaluated.
Effectiveness of siphon drainage method for landslide stabilization in a tropical volcanic hillslope: a case study of Cibitung Landslide, West Java, Indonesia
https://orcid.org/0000-0002-6662-0697
Abstract An effort to implement a siphon drainage system requires a comprehensive knowledge of the factor affecting the performance of the drainage system to reduce the groundwater table in the landslide area. A long-term field experiment was conducted to evaluate the effectiveness of the siphon drainage system with vertical wells to maintain the stability of landslide masses in a volcanic hillslope in West Java. The groundwater levels in all wells and water discharged from each well were monitored and measured periodically. Results of a 1-year measurement of the groundwater level indicate that the siphon drainage system was generally effective in decreasing the groundwater level in the landslide masses to a maximum depth of 7 m with a maximum total drainage flow of 24 $ m^{3} $/day. The implemented siphon drainage system was also able to prevent the groundwater level from rising during a rainfall period. A series of slope stability analyses under a steady-unsteady state seepage condition indicates the siphon drainage increased the long-term stability of the landslide area significantly. Based on this study, factors affecting the effectiveness of long-term siphon drainage performance are thoroughly evaluated.
Effectiveness of siphon drainage method for landslide stabilization in a tropical volcanic hillslope: a case study of Cibitung Landslide, West Java, Indonesia
Tohari, Adrin (author) / Wibawa, Sunarya (author) / Koizumi, Keigo (author) / Oda, Kazuhiro (author) / Komatsu, Mitsuru (author)
2021
Article (Journal)
Electronic Resource
English
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
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