Seepage and stability of slope with capillary barrier system
Capillary barrier system (CBS) is a soil cover system which consists of two layers of soil with distinct hydraulic properties to minimize rainwater infiltration into the underlying soil. Capillary barrier system can acts as a preventive measure in preventing rainfall-induced slope failures. In this...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
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2015
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| Online Access: | http://hdl.handle.net/10356/64128 |
| _version_ | 1811682652226322432 |
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| author | Feng, Xin Yu |
| author2 | Harianto Rahardjo |
| author_facet | Harianto Rahardjo Feng, Xin Yu |
| author_sort | Feng, Xin Yu |
| collection | NTU |
| description | Capillary barrier system (CBS) is a soil cover system which consists of two layers of soil with distinct hydraulic properties to minimize rainwater infiltration into the underlying soil. Capillary barrier system can acts as a preventive measure in preventing rainfall-induced slope failures. In this study, the capillary barrier system was used as a cover system for a residual soil under the rainfall intensity of 18mm/h with 24 hour duration. The capillary barrier system designed in this study used the fine recycled crushed asphalt (RCA) as the fine-grained layer and coarse RCA as the coarse-grained layer. Both seepage and slope stability analyses were performed and the effect of surface drains on the performance of CBS was investigated in this study. The numerical results showed that the CBS was capable in minimizing rainwater infiltration into the slope and capable of maintaining negative pore-water pressures under rainfalls. The presence of surface drains within the capillary barrier system was helpful to prevent the breakthrough in the coarse-grained layer of the CBS. CBS was proven to be an effective method for improvement of rainfall-induced slope. |
| first_indexed | 2024-10-01T04:00:14Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/64128 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:00:14Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/641282023-03-03T17:07:50Z Seepage and stability of slope with capillary barrier system Feng, Xin Yu Harianto Rahardjo School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering Capillary barrier system (CBS) is a soil cover system which consists of two layers of soil with distinct hydraulic properties to minimize rainwater infiltration into the underlying soil. Capillary barrier system can acts as a preventive measure in preventing rainfall-induced slope failures. In this study, the capillary barrier system was used as a cover system for a residual soil under the rainfall intensity of 18mm/h with 24 hour duration. The capillary barrier system designed in this study used the fine recycled crushed asphalt (RCA) as the fine-grained layer and coarse RCA as the coarse-grained layer. Both seepage and slope stability analyses were performed and the effect of surface drains on the performance of CBS was investigated in this study. The numerical results showed that the CBS was capable in minimizing rainwater infiltration into the slope and capable of maintaining negative pore-water pressures under rainfalls. The presence of surface drains within the capillary barrier system was helpful to prevent the breakthrough in the coarse-grained layer of the CBS. CBS was proven to be an effective method for improvement of rainfall-induced slope. Bachelor of Engineering (Civil) 2015-05-25T02:29:19Z 2015-05-25T02:29:19Z 2015 2015 Final Year Project (FYP) http://hdl.handle.net/10356/64128 en Nanyang Technological University 52 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Civil engineering Feng, Xin Yu Seepage and stability of slope with capillary barrier system |
| title | Seepage and stability of slope with capillary barrier system |
| title_full | Seepage and stability of slope with capillary barrier system |
| title_fullStr | Seepage and stability of slope with capillary barrier system |
| title_full_unstemmed | Seepage and stability of slope with capillary barrier system |
| title_short | Seepage and stability of slope with capillary barrier system |
| title_sort | seepage and stability of slope with capillary barrier system |
| topic | DRNTU::Engineering::Civil engineering |
| url | http://hdl.handle.net/10356/64128 |
| work_keys_str_mv | AT fengxinyu seepageandstabilityofslopewithcapillarybarriersystem |