Numerical Analyses of Seepage from Behesht Abad Dam Foundation
ABSTRACT
In this article, seepage phenomena through the karstic limestone foundation of Behesht Abad dam are investigated. In order to get a state of seepage and determine the depth of grouting curtain, it has been tried to evaluate the seepage of Behesht-Abad dam foundation and its abutments by the help of numerical analysis and UDEC 4.0 software. To perform this research, firstly, geological data during a study phase in Behesht Abad dam site was gathered, and then different methods have been used to calculate the engineering properties of rock mass. Therefore the structural model of dam foundation based on the geological data constructed and various boundary conditions including different heads were applied on the model and the suitable depth for the grouting curtain was proposed.
In this article, seepage phenomena through the karstic limestone foundation of Behesht Abad dam are investigated. In order to get a state of seepage and determine the depth of grouting curtain, it has been tried to evaluate the seepage of Behesht-Abad dam foundation and its abutments by the help of numerical analysis and UDEC 4.0 software. To perform this research, firstly, geological data during a study phase in Behesht Abad dam site was gathered, and then different methods have been used to calculate the engineering properties of rock mass. Therefore the structural model of dam foundation based on the geological data constructed and various boundary conditions including different heads were applied on the model and the suitable depth for the grouting curtain was proposed.
Cite this paper
A. F. Dardashti and R. Ajalloeian, "Numerical Analyses of Seepage from Behesht Abad Dam Foundation," Open Journal of Geology, Vol. 2 No. 3, 2012, pp. 148-157. doi: 10.4236/ojg.2012.23015.
A. F. Dardashti and R. Ajalloeian, "Numerical Analyses of Seepage from Behesht Abad Dam Foundation," Open Journal of Geology, Vol. 2 No. 3, 2012, pp. 148-157. doi: 10.4236/ojg.2012.23015.
References
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[1] ITASCA Consulting Group Inc., “UDEC online Manual,” 2004. http://www.itascacg.com/udec/index.php [2] P. Cundall, “A Generalized Distinct Element Program for Modeling Jointed Rock,” Report PCAR-1-80 US Army, Peter Cundall Associates, London, 1980. [3] S. Bandis, “Engineering Properties and Characterization of Rock Discontinuities,” In: S. Bandis, Comprehensive Rock Engineering: Principles, Practice & Projects, Pergamon Press, Oxford, 1993, pp. 18-155. [4] R. E. Goodman, “Introduction to Rock Mechanics,” 2nd Edition, John Wiley & Sons Ltd., Hoboken, 1989. [5] S. D. Priest, “Discontinuity Analysis for Rock Engineering,” Chapman & Hall Press, London, 1993. doi:10.1007/978-94-011-1498-1 [6] E. Hoek and E. T. Brown, “Practical Estimation of Rock Mass Strength,” International Journal of Rock Mechanics & Mining Sciences, Vol. 34, No. 8, 1997, pp. 1165-1186. doi:10.1016/S1365-1609(97)80069-X [7] N. Barton, S. Bandis and K. Bakhtar, “Strength Deformation and Conductivity Coupling of Rock Joints,” International Journal of Rock Mechanics & Mining Sciences, Vol. 22, No. 3, 1985, pp. 40-121. [8] R. Olsson and N. Barton, “An Improved Model for HydroMechanical Coupling during Shearing of Rock Joints,” International Journal of Rock Mechanics & Mining Sciences, Vol. 38, No. 3, 2001, pp. 317-329. doi:10.1016/S1365-1609(00)00079-4 [9] R. Olsson, “Mechanical and Hydro-Mechanical Behavior of Hard Rock Joints—A Laboratory Study,” Ph.D. Thesis, Chalmers University of Technology, Gothenburg, 1998. [10] R. Olsson, “Mechanical and Hydro-Mechanical Behavior of Hard Rock Joints—A Laboratory Study,” Addendum Report 6, Chalmers University of Technology, Gothenburg, 1999.