Abstract
This paper discusses the engineering geological investigations, diversion tunnel support design and slope stability assessment studies carried out at the Sulakyurt dam site, northeast of Ankara, Turkey. The Sulakyurt dam will be used for flood flow control and water storage for irrigation. Engineering geological mapping, discontinuity surveys, core drilling, water absorption and laboratory tests were undertaken. The RMR, Q and GSI approaches were used to estimate the rock mass quality, site characteristics, rock mass parameters and appropriate tunnel support elements. The results of kinematic and limit equilibrium analyses for the slopes on the right and left banks are reported.
Résumé
L’article présente les travaux de reconnaissance géologique, la conception du soutènement de la galerie de dérivation et les études de stabilité des pentes réalisés sur le site du barrage de Sulakyurt, au nord-est d’Ankara, en Turquie. Le barrage de Sulakyurt permettra le contrôle des crues et l’irrigation des terres. Une carte de géologie de l’ingénieur, des études de discontinuités, des forages carottés, des tests de perméabilité et des essais de laboratoire ont été réalisés. Les méthodes RMR, Q et GSI ont été utilisées pour estimer la qualité du massif rocheux et les paramètres correspondants ainsi que pour définir les dispositifs de soutènement de la galerie de dérivation. Les résultats des analyses de stabilité des pentes sur les rives droite et gauche sont présentés.
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Acknowledgment
The authors wish to express their deep gratitude to the managers of the General Directorate of State Hydraulic Works for providing the necessary data. Special thanks go to Dr. Yusuf Kağan Kadıoğlu for his valuable help.
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Özsan, A., Öcal, A., Akın, M. et al. Engineering geological appraisal of the Sulakyurt dam site, Turkey. Bull Eng Geol Environ 66, 483–492 (2007). https://doi.org/10.1007/s10064-007-0092-3
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DOI: https://doi.org/10.1007/s10064-007-0092-3