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Environmental Earth Sciences

, Volume 60, Issue 4, pp 817–827 | Cite as

Water losses risk assessment: an example from Carpathian karst

  • Sasa Milanovic
  • Zoran Stevanovic
  • Igor Jemcov
Original Article

Abstract

The multipurpose dam and reservoir “Bogovina” in the Crni Timok valley is one of several projects that have been initiated to improve water availability in Serbia. The site and height of the dam were initially proposed without consideration of risk factors such as water leakage or stability of the banks. Later, complex hydrogeological and speleological surveys and tests identified the potential of significant water losses from the reservoir area connected mainly to the karstic aquifer, and the nearby Bogovina cave system. The analyses show that once the reservoir is filled up, groundwater flow currently oriented towards the future reservoir would saturate the upper part of the karstified rocks, reactivate currently unsaturated pathways and form a reverse discharge outside of the reservoir area. In response to these findings, the dam design and technical details have been adapted accordingly: the dam height has been reduced by 9 m, and it is proposed that grouting and consolidation work be conducted both at the foundation of the dam and extensively on the embankments. It was concluded that although the proposed remedial measures cannot guarantee reservoir tightness, they can reduce the risk of large-scale leaking.

Keywords

Karst Dam Water losses Risk assessment 

References

  1. Bruce DA (2003) Sealing of massive water inflows through karst by grouting: principles and practice. In: Back B (ed) Sinkholes and the engineering and environmental impacts of karst. ASCE Geotech Spec Publ No.122, pp 615Google Scholar
  2. Cvijic J (1893) Das Karstphänomen. Versuch einer morphologischen Monographie. Geographischen Abhandlung. Wien V (3):218-329Google Scholar
  3. Dar al-Handasah, Jacobs Gibb Co (2003) Barrage Hammam Grouz. Traitement des fuites d’eau. Ministerie des resources en eau, ANB, Raport (unpublished), Algerie, pp 28Google Scholar
  4. Divac D, Vuckovic D, Zivkovic M, Stojkov S, Vulovic S (2005) Modeling of reservoir and rock mass interaction at the Bogovina dam on the Crni Timok River. In: Isailovic D (ed) Management of water resources of Serbia. Spec. ed. Inst. Wat. Manag. “J.Cerni”, Belgrade, pp 233–274Google Scholar
  5. Dokmanovic P, Jemcov I, Milanovic S, Hajdin B (2003) Hydrogeolgical risk factors of dam and reservoir construction—a case example “Bogovina”. Periodical for Mining, Metalurgy and Geology.50(1):105–109, LjubljanaGoogle Scholar
  6. Fazeli MA (2007) Construction of grout curtain in karstic environment case study: Salman Farsi dam. Environ Geol 51:791–796CrossRefGoogle Scholar
  7. Ford D, Williams P (2007) Karst hydrogeology and geomorphology. Wiley, pp 562Google Scholar
  8. Maran A, Jemcov I, Milanovic S, Stevanovic Z (2005) Dam constuction or geoheritage conservation? An example from Eastern Serbia. In: Proceedings of “10 Years of Geological Heritage in SE Europe”—ProGeo WG-1, Tirana, pp 18–19Google Scholar
  9. Milanovic P (2000) Geological engineering in karst. Monograph. Zebra, Belgrade, pp 347Google Scholar
  10. Milanovic S (2007) Results of recording of karstic features—Ourkiss dam project. Report. Hidrotehnika, BelgradeGoogle Scholar
  11. Milanovic P, Stevanovic Z, Belicevic V (2007) Barrage Hammam Grouz, Saf Saf, Ourkiss, Raport d’Expertise. ANBT, Algerie, p 97Google Scholar
  12. Radulescu D, Stanescu I, Gaspar E, Bulgar A (1987) Aquiferous interconnexions in the Motru–Izvarna–Tismana–Bistrita karst area, theoretical and applied karstology. 3. Bucharest, pp 199–214Google Scholar
  13. Romanov D, Gabrovsek F, Dreybrodt W (2005) Leakage below dam sites in limestone terrains by enhanced karstification: a modeling approach. In: Stevanovic Z, Milanovic P (eds) Water resources and environmental problems in karst, proceedings of IAH international conference KARST 2005, Belgrade, pp 645–650Google Scholar
  14. Sahuquillo A (1985) Spanish experience in karst water resources, IAHS Publication, no. 161, AnkaraGoogle Scholar
  15. Stevanovic Z (1994) Karst ground waters of Carpatho-Balkanides in eastern Serbia. In: Stevanović Z, Filipović B (eds) Ground waters in carbonate rocks of the Carpathian–Balkan Mountain Range (Spec. ed. of CBGA). Allston, Jersey, pp 203–237Google Scholar
  16. Stevanovic Z, Dragisic V (1997) An example of regulation of karst aquifer. In: Gunay G, Johnson I (eds) Karst waters and environmental impacts. Balkema, Rotterdam, pp 19–26Google Scholar
  17. Stevanovic Z, Dragisic V (1998) An example of identfying karst groundwater flow. Env Geol 35(4):241–244CrossRefGoogle Scholar
  18. Stevanovic Z, Dragisic V (2002) Paleohydrogeological reconstruction of Bogovina cave. Spec ed. SANU, Receuil des rap. du Com. pour le karst et spel, VII, vol DCL, Belgrade, pp 49–59Google Scholar
  19. Stevanovic Z, Jemcov I, Milanovic S, Dokmanovic P, Hajdin B (2005) Management of karst aquifers in Serbia for water supply—achievements and perspectives. In: Stevanovic Z, Milanovic P (eds) Water resources and environmental problems in karst, proceedings of IAH international conference KARST 2005, Belgrade, pp 283–290Google Scholar
  20. Therond R (1972) Recherche sur l’etancheite des lacs de barrage en pays karstique. Eyrolles, Paris, p 443Google Scholar
  21. Vlahovic V (1975) Karst of Niksic polje and its hydrogeology. Drustvo za nauku i umjetnost Crne Gore, Posebna izdanja, knj. III, Odjeljenje prirodnih nauka, Titograd, pp 240 Google Scholar
  22. Vuckovic D, Milanovic S (2001) Salman Farsi dam. Speleological report. BelgradeGoogle Scholar
  23. Zogovic D (1980) Some methodological aspects of hydrogeological analysis related to dam and reservoir construction in karst. Proceedings of 6th Yugoslav conf. for Hydrogeol. and Eng. geol., Portoroz, pp 283–291Google Scholar

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Department of Hydrogeology, Faculty of Mining and GeologyUniversity of BelgradeBelgradeSerbia

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