Evaluation of the effects of water intake of Seymareh dam on groundwater level around the site and discharge of downstream springs

Document Type : Research Article

Authors

1 Department of Hydraulic Engineering and Hydro-Environment, Water Research Institute, Tehran, Iran

2 Assistant Professor, Department of Hydraulic Engineering and Hydro-Environment, Water Research Institute, Tehran , Iran

3 Assistant Professor, Department of Hydraulic Engineering and Hydro-Environment, Water Research Institute, Tehran, Iran

Abstract

In this study, the quantitative effects of the construction of Seymareh Dam in the Karst site of this structure on the fluctuations of groundwater level and discharge of springs have been investigated. According to 10-year measurements, it was found that there is a direct hydraulic relationship between the water surface of the dam reservoir and the water level of observation wells. The results revealed that a significant difference in the amount of water level of the North Edge wells compared to the South Edge wells, especially in the right abutment and the right abutment wells compared to the left abutment can be clearly seen, respectively, the evidence and confirmation of an Asmari core with Low permeability is along the axis of the anticline and also more efficiency of the sealing curtain on the right side is another reason for this difference. Changes in the total discharge of the total springs measured on both banks (right and left) have a similar trend to the changes in the discharge of the left bank springs, which is due to the more discharge of the left abutment springs. The results showed that with increasing the water level of the reservoir to 660 meters, the amount of discharge of springs in the region reached 1400 liters per second and with decreasing the level of reservoir water in the next year this amount decreased and again with increasing level to 704 meters, the amount of discharge to 1800 Liters per second has increased.

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Amirkabir Journal of Civil Engineering
Volume 55, Issue 6
September 2023
Pages 1179-1194

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