Page - 945 - in Book of Full Papers - Symposium Hydro Engineering

COMMISSION INTERNATIONALE DES GRANDS BARRAGES ------- VINGT-SIXIÈME CONGRÈS DES GRANDS BARRAGES Autriche, juillet 2018 ------- OPERATION AND MAINTENANCE OF SABALAN DAM Jamshid SADREKARIMI, Simin SHAHRADFAR, Atusa MIHANDOOST ASHENAB CONSULTING ENGINEERS, DAM DEPARTMENT, TABRIZ IRAN ABSTRACT Inspection and Monitoring of dams as well as data analysis and interpretation has a critical role in the field of dam safety. Surveillance and Monitoring programs on dams provide information for evaluating the dam`s performance with respect to design intent and expected behavior. Sabalan dam is an 89 m high rock-fill embankment with central clay core constructed in the north west of Iran and has been operated since 2006. The dam instrumentation system comprises variety of piezometers, total stress cells, settlement meters and inclinometers that are installed along 5 cross sections. In this paper, instrumentation scheme of Sabalan dam are described. Then the safety of the dam during operation is evaluated through the surveillance reports which have been prepared from records of the whole monitoring system. The results indicated that the stability of the dam satisfies the safety requirements. The percentage of settlement is within the reasonable range and also stress and pore water pressure graphs indicate safety of the dam. Detailed results of the study are demonstrated through the text. 945