Author(s): Sayed-Farhad Mousavi; Manouchehr Heidarpour; Saeid Shabanlou
Linked Author(s):
Keywords: Reservoir sedimentation; Area-reduction; Area-increment
Abstract: Dams are one of the most important hydraulic structures for conservation and storage of floods. It is important to study sediments in dams’reservoirs. In this research, 10 dams of Iran (Amir Kabir, Dez, Durudzan, Ekbatan, Kardeh, Latiyan, Moghan, Qeshlaq, Toroq and Zayandehrud) were studied. Sedimentation has taken place in all of these dams. Initial and aftersedimentation curves of depth-area and depth-capacity are used as a measure of sediment distribution in the reservoirs. Two empirical methods of area-reduction and area-increment were used to estimate sediment distribution. The results showed that none of these methods are able to predict sediment distribution accurately. The least error belongs to Ekbatan dam (16.8%) and the largest error is due to Amir Kabir dam (136.1%). Generally, area-reduction method was the best for distribution of sediments in the studied reservoirs and had the least error.
Year: 2002