Effectiveness of horizontal drains for slope stability
Horizontal drains have been commonly used in stabilising unsaturated residual soil slopes. This study examines the effectiveness of horizontal drains in stabilising residual soil slopes against rainfall-induced slope failures under a tropical climate. The study includes field instrumentation at two...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2011
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| Online Access: | https://hdl.handle.net/10356/101442 http://hdl.handle.net/10220/7368 |
| _version_ | 1811681902944321536 |
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| author | Rahardjo, Harianto Leong, Eng Choon Hritzuk, K. J. Rezaur, R. B. |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Rahardjo, Harianto Leong, Eng Choon Hritzuk, K. J. Rezaur, R. B. |
| author_sort | Rahardjo, Harianto |
| collection | NTU |
| description | Horizontal drains have been commonly used in stabilising unsaturated residual soil slopes. This study examines the effectiveness of horizontal drains in stabilising residual soil slopes against rainfall-induced slope failures under a tropical climate. The study includes field instrumentation at two residual soil slopes complemented with a parametric study relating to drain position. Field monitoring results indicate that rainfall infiltration is limited to a certain depth below which infiltration becomes insignificant. This zone tends to be unsuitable for horizontal drains. Horizontal drains were found to be most effective when located at the base of a slope. The parametric study indicated conditions under which horizontal drains are effective or ineffective in improving the stability of a slope. It was also found that horizontal drains have little role in minimising infiltration in an unsaturated residual soil slope. Benefits of using horizontal drains can be obtained through the lowering of the water table. |
| first_indexed | 2024-10-01T03:48:20Z |
| format | Journal Article |
| id | ntu-10356/101442 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:48:20Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/1014422020-03-07T11:43:46Z Effectiveness of horizontal drains for slope stability Rahardjo, Harianto Leong, Eng Choon Hritzuk, K. J. Rezaur, R. B. School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Geotechnical Horizontal drains have been commonly used in stabilising unsaturated residual soil slopes. This study examines the effectiveness of horizontal drains in stabilising residual soil slopes against rainfall-induced slope failures under a tropical climate. The study includes field instrumentation at two residual soil slopes complemented with a parametric study relating to drain position. Field monitoring results indicate that rainfall infiltration is limited to a certain depth below which infiltration becomes insignificant. This zone tends to be unsuitable for horizontal drains. Horizontal drains were found to be most effective when located at the base of a slope. The parametric study indicated conditions under which horizontal drains are effective or ineffective in improving the stability of a slope. It was also found that horizontal drains have little role in minimising infiltration in an unsaturated residual soil slope. Benefits of using horizontal drains can be obtained through the lowering of the water table. Accepted version 2011-12-08T08:52:53Z 2019-12-06T20:38:47Z 2011-12-08T08:52:53Z 2019-12-06T20:38:47Z 2003 2003 Journal Article Rahardjo, H., Hritzuk, K. J., Leong, E. C., & Rezaur, R. B. (2003). Effectiveness of Horizontal Drains for Slope Stability. Engineering Geology, 69(3-4), 295-308. https://hdl.handle.net/10356/101442 http://hdl.handle.net/10220/7368 10.1016/S0013-7952(02)00288-0 en Engineering geology © 2003 Elsevier Ltd. |
| spellingShingle | DRNTU::Engineering::Civil engineering::Geotechnical Rahardjo, Harianto Leong, Eng Choon Hritzuk, K. J. Rezaur, R. B. Effectiveness of horizontal drains for slope stability |
| title | Effectiveness of horizontal drains for slope stability |
| title_full | Effectiveness of horizontal drains for slope stability |
| title_fullStr | Effectiveness of horizontal drains for slope stability |
| title_full_unstemmed | Effectiveness of horizontal drains for slope stability |
| title_short | Effectiveness of horizontal drains for slope stability |
| title_sort | effectiveness of horizontal drains for slope stability |
| topic | DRNTU::Engineering::Civil engineering::Geotechnical |
| url | https://hdl.handle.net/10356/101442 http://hdl.handle.net/10220/7368 |
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