Sotka Dam Seepage; Evaluation and Possible Remediation | ||
| Sulaimani Journal for Engineering Sciences | ||
| Article 7, Volume 3, Issue 3, March 2016, Pages 75-81 | ||
| DOI: 10.17656/sjes.10038 | ||
| Authors | ||
| Kawa Zeidan Abdulrahman1; Nihad Bahaaldeen Salih2; Alan Abubaker Ghafoor2 | ||
| 1Irrigation Engineering Department - University of Sulaimani | ||
| 2Soil and Water Science Department - Faculty of Agricultural Sciences - University of Sulaimani | ||
| Abstract | ||
| One of the most important analysis that should be done before the construction of an embankment dam is the seepage analysis. Inaccurate analysis of the seepage through the foundation or the dam body will lead to inaccurate design of the seepage control measures, and consequently may cause failure of the dam or high seepage losses during the operation stage. This research deals with the seepage problem in a small dam (Sotka) in Sulaimani City. Significant amount of seepage near the left abutment at the downstream toe of the dam has been noticed after first filling. A notable difference was noticed between measured and calculated values. Despite that discrepancy, seepage rate is considerably high and affects the reservoir operation efficiency. Grouting curtain is suggested as seepage control measures to reduce seepage quantity through the foundation of the dam. The estimated seepage rate after using grout curtain is reduced to 20% of the existing field seepage rate. | ||
| Keywords | ||
| seepage; Earth dam; Geo-Studio; Dam Foundation | ||
| References | ||
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1. Alkaya D., Çobanoglu I., Yesil B. (2011). An application of grout curtains to the DalamanAkköprü Dam. International Journal of the Physical Sciences, 2405-2413.
2. Bureau of Reclamation. (1998). Design of SoilCement-Bentonite Cutoff Wall for Twin Buttes Dam. No. 184.
3. Bureau of Reclamation. (2014). Design Standards No. 13 Embankment Dams; Foundation grouting. Denver, Colorado.: Technical Service Center.
4. Dardashti A. F. and Ajalloeian R. (2012). Numerical Analyses of Seepage from Behesht Abad Dam Foundation. Open Journal of Geology, 2, pp. 148 - 157.
5. GEO-SLOPE International Ltd. (2008). Seepage Modeling with SEEP/W 2007. Canada.
6. Khan B., Amin M. and Badshah N. (2013). Evaluation of Different Seepage Control Measures for a Proposed "Golen Gol" Weir in Pakistan. Sci. Tech. and Dev., 32 (4), pp. 299 - 307.
7. Noori B. M. A. and Ismaeel K. S. (2011). Evaluation of Seepage and Stability of Duhok Dam. Al-Rafidain Engineering, Vol. 19.
8. Sulovska M. (2008). Expected and Actual Seepage through the Bodies and Subsoils of Earth Dams. Slovak Journal of Civil Engineering, 1, pp. 19 - 28.
9. Sotka farm dam. (2011). Geological and geotechnical investigations report. By: Sovan Company for Construction, Sulaimaniya: kurdistan region.
10. United States Department of the Interior, Bureau of Reclamation (1987). Design of Small Dams. Denver, Colorado.
11. Hasani H., Mamizadeh J. and Karimi H. (2013). Stability of Slope and Seepage Analysis in Earth Fills Dams Using Numerical Models (Case Study: Ilam Dam-Iran). World Applied Sciences Journal 21 (9): pp. 1398-1402.
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