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Moghaddam, Sadegh, Kamkar Rouhani, Abolghasem, Arab Amiri, Alireza. (1396). Subsurface structural characterization of the Chooman Dam site using geoelectric method. مجله ژئوفیزیک ایران, 10(5), 22-30.
Sadegh Moghaddam; Abolghasem Kamkar Rouhani; Alireza Arab Amiri. "Subsurface structural characterization of the Chooman Dam site using geoelectric method". مجله ژئوفیزیک ایران, 10, 5, 1396, 22-30.
Moghaddam, Sadegh, Kamkar Rouhani, Abolghasem, Arab Amiri, Alireza. (1396). 'Subsurface structural characterization of the Chooman Dam site using geoelectric method', مجله ژئوفیزیک ایران, 10(5), pp. 22-30.
Moghaddam, Sadegh, Kamkar Rouhani, Abolghasem, Arab Amiri, Alireza. Subsurface structural characterization of the Chooman Dam site using geoelectric method. مجله ژئوفیزیک ایران, 1396; 10(5): 22-30.

Subsurface structural characterization of the Chooman Dam site using geoelectric method

مقاله 3، دوره 10، شماره 5، بهار 1396، صفحه 22-30  XML اصل مقاله (1006.49 K)
نوع مقاله: مقاله تحقیقی‌ (پژوهشی‌)
نویسندگان
Sadegh Moghaddam email 1؛ Abolghasem Kamkar Rouhani2؛ Alireza Arab Amiri2
1Institute of Geophysics, University of Tehran, Tehran, Iran
2School of Mining, Petroleum and Geophysics, Shahrood University of Technology, Shahrood, Iran
چکیده
A recent evaluation of Chooman Dam highlighted the potential for dam failure due to either seepage or an earthquake on nearby faults. Unfortunately, this dam suffers from infiltration or leakage problems related mainly to different geological and tectonic factors. In response to these concerns, electrical resistivity surveys employing vertical electric sounding (VES) method were carried out at the dam site, located in Kurdistan Province in the west of Iran in order to delineate potential pathways of leakage occurring thorough the subsurface structure close to the dam body, bed rock depth and lateral discontinuities in the study area. The VES surveys were conducted using the Schlumberger electrode array in 400 points or stations along 28 profiles at a station interval of 20 to 50 m in up- and downstream sides of the dam embankment. For data acquisition, a terrameter SAS 4000 resistivity system, made by Swedish ABEM Company, was used. Maximum separation of current electrodes in the Schlumberger VES surveys was considered 430 m. These geoelectrical studies revealed a thick package of andesite basement in the eastern part and vitriform tuff basement in the western part of the study area. Considering the results and the detection of a strike-slip fault on the downstream side of the dam embankment, it is evident that fractures are the main causative factor responsible for the leakage in the Chooman Dam.
کلیدواژه‌ها
Electrical resistivity؛ vertical electric sounding (VES) method؛ Schlumberger array؛ Chooman Dam؛ Kurdistan province؛ Iran
عنوان مقاله [English]
Subsurface structural characterization of the Chooman Dam site using geoelectric method
نویسندگان [English]
Sadegh Moghaddam1؛ Abolghasem Kamkar Rouhani2؛ Alireza Arab Amiri2
1Institute of Geophysics, University of Tehran, Tehran, Iran
2School of Mining, Petroleum and Geophysics, Shahrood University of Technology, Shahrood, Iran
چکیده [English]
A recent evaluation of Chooman Dam highlighted the potential for dam failure due to either seepage or an earthquake on nearby faults. Unfortunately, this dam suffers from infiltration or leakage problems related mainly to different geological and tectonic factors. In response to these concerns, electrical resistivity surveys employing vertical electric sounding (VES) method were carried out at the dam site, located in Kurdistan Province in the west of Iran in order to delineate potential pathways of leakage occurring thorough the subsurface structure close to the dam body, bed rock depth and lateral discontinuities in the study area. The VES surveys were conducted using the Schlumberger electrode array in 400 points or stations along 28 profiles at a station interval of 20 to 50 m in up- and downstream sides of the dam embankment. For data acquisition, a terrameter SAS 4000 resistivity system, made by Swedish ABEM Company, was used. Maximum separation of current electrodes in the Schlumberger VES surveys was considered 430 m. These geoelectrical studies revealed a thick package of andesite basement in the eastern part and vitriform tuff basement in the western part of the study area. Considering the results and the detection of a strike-slip fault on the downstream side of the dam embankment, it is evident that fractures are the main causative factor responsible for the leakage in the Chooman Dam.
کلیدواژه‌ها [English]
Electrical resistivity, vertical electric sounding (VES) method, Schlumberger array, Chooman Dam, Kurdistan province, Iran
مراجع

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Batayneh, A. T., Abdallah, S. A. Z., and Abdelruhman, A. A., 2001, Geophysical investigations for the location of a proposed dam in Al Bishriyya (Al Aritayn) area, northeast Badia of Jordan: Environmental Geology, 40, 918–922.

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Egbai, J. C. and Asokhia, M. B., 1998, Correlation between resistivity survey and well logging in Delta State, Nigeria: Journal of the Nigerian Association of Mathematical Physics, 2, 163–175.

Ezomo, F. O. and Akujieze, C. N., 2011, Geophysical study of limestone attributes at Abudu area of Edo State, Nigeria: J. of Emerging Trends in Engineering and Applied Sciences, 2, 795–800.

Morgan, F. D., 2001, Self-Potential and Resistivity for the Detection and Monitoring of Earthen Dam Seepage: Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Earth Resources Laboratory.

Panthulu, T. V., Krishnaiah, C., and Shirke, J. M., 2001, Detection of seepage paths in earth dams using self-potential and electrical resistivity methods: Engineering Geology, 59, 281–295.

Telford, W. M., Geldart, L. P. and Sheriff, R. E., 1990, Applied Geophysics: Cambridge University Press, London.

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Voronkov, O. K., Kagan, A. A., Krivonogova, N. F., Glagovsky, V. B., and Prokopovich, V. S., 2004, Geophysical methods and identification of embankment dam parameters: Proceedings of the 2nd  International Conference on Site Characterization (ISC), Porto, Portugal, 19–22 September, pp. 593–599.

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