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Trends in Applied Sciences Research
  Year: 2009 | Volume: 4 | Issue: 3 | Page No.: 148-157
DOI: 10.3923/tasr.2009.148.157
 
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Investigation on Bulk Density of Deposited Sediments in Dez Reservoir

H. Samadi Boroujeni, M. Fathi-Moghadam and M. Shafaei-Bejestan

Abstract:
In this study, the bulk density of fine sediments deposited behind Dez dam (near dam body) in Iran has been quantified by field investigation (one borehole closed to power intakes) and available empirical methods. Dez dam is located in the Southwest of Iran, completed in 1963, with the height of 203 m and original reservoir volume of 3315 million m3 (MCM). The result of bathymetry survey in 2003 show that the storage volume of the reservoir has been reduced to 2600 MCM by sedimentation and sediment level at upstream of the dam body has been raised to 256 m, i.e., only 14 m below the hydropower intake at elevation of 270 m. The field data from a deep borehole at bottom of reservoir close to the hydropower intakes have been collected and analyzed. Results show that the empirical methods proposed by Lane and Miller underestimate the bulk density of sediments by about 43 and 46%, respectively. This shows that the empirical methods can not be applied for predicting bulk density of fine sediments. A new set of equations is developed for predicting the bulk density of fine sediments.
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How to cite this article:

H. Samadi Boroujeni, M. Fathi-Moghadam and M. Shafaei-Bejestan, 2009. Investigation on Bulk Density of Deposited Sediments in Dez Reservoir. Trends in Applied Sciences Research, 4: 148-157.

DOI: 10.3923/tasr.2009.148.157

URL: https://scialert.net/abstract/?doi=tasr.2009.148.157

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