IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 5 - FLUVIAL HYDRAULICS AND RIVER MANAGEMENT : Analyzing the Amount and Procedure of Sedimentation in Reservoirs Using the Results of Depth Finding...
Analyzing the Amount and Procedure of Sedimentation in Reservoirs Using the Results of Depth Finding in the Operational Period
Author : Mohammad Sadegh Sadeghian, Faridah Othman, Mohammad Daneshkhah and Mohammad Heydari
Sedimentation in reservoirs has drawn the attention of researchers due to its important role in reducing dam useful life during past years. In fact, there have been many studies on different empirical and semi- empirical methods, capacity determination modeling, procedure of depositing sediments and calculating sediments in order to determine dead storage volume in dam reservoirs. Alongside of those studies, discussions such as gradual changes in specific gravity of sediments , trapping coefficient of sediments and the annual sedimentation rate have been noticed during the last decades as well. In this study we compared the outcomes of statistic results and finding depth data, during 40 to 45 years of operation period, which is done by echo sounder system, with the gained results during designing of Karaj dam and Latiyan dam. Furthermore, sedimentation rate and volume reduction percentage are evaluated in these two dams and the results were analyzed for determining sedimentation rate and also to study whether the total sediment volume during the reservoir useful life coincides calculations during designing. In the end, it showed that the increasing level method for the mentioned dams was not an appropriate and adequate method to distribute sediments.
File Size : 283,958 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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