Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown
Earth and rockfill dams face a variety of loading conditions during lifetime. One of the most critical loading conditions is the rapid drawdown of water level after steady state conditions. Rapid drawdown may cause instability of upstream slope of the dam. The present work examines the stability of...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Koya University
2021-03-01
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| Series: | ARO-The Scientific Journal of Koya University |
| Subjects: | |
| Online Access: | https://aro.koyauniversity.org/index.php/aro/article/view/678 |
| _version_ | 1797724160149946368 |
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| author | Sirwan Gh. Salim Krikar M. G. Noori |
| author_facet | Sirwan Gh. Salim Krikar M. G. Noori |
| author_sort | Sirwan Gh. Salim |
| collection | DOAJ |
| description | Earth and rockfill dams face a variety of loading conditions during lifetime. One of the most critical loading conditions is the rapid drawdown of water level after steady state conditions. Rapid drawdown may cause instability of upstream slope of the dam. The present work examines the stability of a rockfill dam under different drawdown rates in terms of factor of safety for the upstream slope of the dam. For this purpose, a computer software named GeoStudio 2012 SEEP/W and SLOPE/W has been used for the numerical analysis. The results showed that the drawdown rate has a significant effect on stability of rockfill dam in which increasing the drawdown rate from 1 m/day to 10 m/day decreases the stability of the dam by 33%. Based on the outcomes, for the studied case the drawdown rate (1 m/day) can be recommended. |
| first_indexed | 2024-03-12T10:13:28Z |
| format | Article |
| id | doaj.art-1434ed40f38c4fd7b06ef7b4aa10d3cf |
| institution | Directory Open Access Journal |
| issn | 2410-9355 2307-549X |
| language | English |
| last_indexed | 2024-03-12T10:13:28Z |
| publishDate | 2021-03-01 |
| publisher | Koya University |
| record_format | Article |
| series | ARO-The Scientific Journal of Koya University |
| spelling | doaj.art-1434ed40f38c4fd7b06ef7b4aa10d3cf2023-09-02T10:42:30ZengKoya UniversityARO-The Scientific Journal of Koya University2410-93552307-549X2021-03-019110.14500/aro.10678Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during DrawdownSirwan Gh. Salim0Krikar M. G. Noori11Department of City Planning, Technical College of Engineering, Sulaimani Polytechnic University, Sulaymaniyah, Kurdistan Region – F.R. IraqKoya Technical Institute, Erbil Polytechnic University, Koya, Kurdistan Region – F.R. IraqEarth and rockfill dams face a variety of loading conditions during lifetime. One of the most critical loading conditions is the rapid drawdown of water level after steady state conditions. Rapid drawdown may cause instability of upstream slope of the dam. The present work examines the stability of a rockfill dam under different drawdown rates in terms of factor of safety for the upstream slope of the dam. For this purpose, a computer software named GeoStudio 2012 SEEP/W and SLOPE/W has been used for the numerical analysis. The results showed that the drawdown rate has a significant effect on stability of rockfill dam in which increasing the drawdown rate from 1 m/day to 10 m/day decreases the stability of the dam by 33%. Based on the outcomes, for the studied case the drawdown rate (1 m/day) can be recommended.https://aro.koyauniversity.org/index.php/aro/article/view/678Drawdown rateEarth/Rockfill damFactor of safetyGeoStudio 2012Pore water pressure |
| spellingShingle | Sirwan Gh. Salim Krikar M. G. Noori Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown ARO-The Scientific Journal of Koya University Drawdown rate Earth/Rockfill dam Factor of safety GeoStudio 2012 Pore water pressure |
| title | Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown |
| title_full | Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown |
| title_fullStr | Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown |
| title_full_unstemmed | Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown |
| title_short | Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown |
| title_sort | assessment of the upstream slope stability of darbandikhan rockfill dam during drawdown |
| topic | Drawdown rate Earth/Rockfill dam Factor of safety GeoStudio 2012 Pore water pressure |
| url | https://aro.koyauniversity.org/index.php/aro/article/view/678 |
| work_keys_str_mv | AT sirwanghsalim assessmentoftheupstreamslopestabilityofdarbandikhanrockfilldamduringdrawdown AT krikarmgnoori assessmentoftheupstreamslopestabilityofdarbandikhanrockfilldamduringdrawdown |