Research of discharge sediment methods in Sefidrud dam and indication optimal method
Subject Areas :
1 - کارشناس ارشد عمران آب دانشگاه آزاد اسلامی واحد تبریز
2 - دانشجوی دکتری جغرافیای طبیعی- دانشگاه آزاد اسلامی واحد تبریز
Keywords: flushing, Discharge sediment, density current, dredging,
Abstract :
According to big dam's International commit report, nowadays more than 40000 big dam exist andused to provide water, produce energy, and controlling flood .deposition destroys about 0.5 to 1percent of dams’ reservoir in every year, so building annually 200-400 great dams is needed. Andignoring, not only cause it to become worse but also it will make solution finding harder. In thisresearch the methods of discharging sediments like dredging, current density and flushing in sefidruddam is studied. Dredging is not a suitable method because of project hard nesses and economicproblems. Current density was the limiting factor to use better of this method, because of a cut off damlocated in 150 meters far from the upstream river, so only flushing method is suitable for dischargesediment if environmental harms reduced.