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Yousefi, S.
- Seepage Investigation of Embankment Dams using Numerical Modelling of Temperature Field
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Authors
Affiliations
1 Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, IR
2 Faculty of Water and Environmental Engineering, Department of Civil Engineering, Shahid Abbaspour, Power and Water University of Technology, Tehran, IR
3 Department of Civil Engineering, Sharif University of Technology, Tehran, IR
1 Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, IR
2 Faculty of Water and Environmental Engineering, Department of Civil Engineering, Shahid Abbaspour, Power and Water University of Technology, Tehran, IR
3 Department of Civil Engineering, Sharif University of Technology, Tehran, IR
Source
Indian Journal of Science and Technology, Vol 6, No 8 (2013), Pagination: 5078-5082Abstract
Leakage in embankment dam by applying seepage and thermal numerical simulations are studied in this paper. Unpredicted seepage in earthen dams is known as the main cause of damage in most cases. Determination of seepage flow quantity and prediction of dam leakage is very important. Temperature variation in dam body can be simulated to estimate the water velocity in soil layers. While moving through dam body, seepage flow carries all physical specifications of reservoir water, including its temperature. Mass and energy balance equations are discretized for modeling flow and temperature fields. The finite element method along with a mathematical model has been utilized to discretize and solve the governing equations in saturated and unsaturated zones. Shamil embankment dam located in South of Iran is considered as a case study to investigate the proposed model. To evaluate the condition of dam, different cases of soil materials with different permeability coefficients are analyzed and compared with measured data. Numerical results of seepage and temperature modeling are compared and discussed. The obtained results indicate that inspecting temperature data can magnify the effect of leakage more clearly than investigating piezometric head data.Keywords
Seepage Flow, Thermal Simulation, Embankment Dam, Finite Element Analysis, Shamil Dam, LeakageFull Text
References
- Aufleger M, Goltz M et al. (2008). Optimization of fiberoptic heat-up cables for leakage detection and flow velocity measurements in embankment dams, ICOLD 76th ANNUAL MEETING, Symposium: Operation, Rehabilitation and Up-grading of Dams, Sofia, Bulgaria.
- Cunat P, Beck Y L et al. (2009). Surveillance of dyke ageing, Proceedings of the 2nd Internationnal Conference on Long Term Behaviour of Dams, Graz, Austria, 4.
- Johansson S (1997). Seepage monitoring in embankment dams, Doctoral Thesis, Royal Institute of Technology, Stockholm, Sweden.
- Johansson S (1991). Localization and quantification of water leakage in ageing embankment dams by regular temperature measurements, Proceedings ICOLD 17th Congress, Q65, R54, Vienna, Austria.
- Johansson S, and Dahlin T (1998). Seepage monitoring in hollby embankment dam by continuous resistivity measurements, Proceedings of 8th Congress of the International Ass. of Eng. Geology and the Environment, Vancouver, Balkema, Rotterdam, 95–102.
- Kappelmeyer O (1957). The use of near surface temperature measurements for discovering anomalies due to causes at depths, Geophysical Prospecting, vol 3, 239–258.
- Merkler G P, Blinde A et al. (1985). Field investigations for the assessment of permeability and identification of leakage in dams and dam foundations, Proceedings ICOLD 15th Congress, Q58, R7, Lausanne, Switzerland.
- Moshanir Company (2007). Shamil Dam Technical Report.
- Noorzad A, Taghavi A et al. (2008). Detection of internal erosion in embankment dams using temperature measurements, The 4th National Conference on Civil Engineering, University of Tehran.