Accuracy of SEEP/W model in predicting seepage line and flow rate through lengthy coarse ‎porous medium

Document Type : Research Paper



In this paper, subsurface water profiles through coarse porous medium are investigated ‎numerically and then are compared with experimental data. Numerical simulations have been ‎conducted using SEEP/W model which is based on the finite element method. Laboratory model of ‎the porous medium has 6.4m length, 0.8m width and 1m height. Crushed materials were used as ‎porous media. Modeling scenarios were conducted for different values of flow discharges and ‎three bed slopes of 0, 4 and 20.3 % and then flow profiles and discharges were computed and ‎compared with those provided form experimental. The results indicated that application of ‎SEEP/W model for simulating flow properties through coarse materials and rockfill structures do ‎not always present satisfactory outputs, wherein in most cases specifically in low slopes ‎underestimated subsurface water profiles ( seepage line) compared to observed profiles. Also ‎computed flow discharge give a different behavior depend on bed slope and kind of materials. The ‎results of numerical model showed a good agreement in steep slope comparing to low slopes. ‎


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Bazargan, H., H. Bayat (2002). Determination of non-linear flow coefficients through coarse alluvial foundations. Esteghlal. 21(1), 101-112.
Sedghi-Asl, M., H Rahimi, J, Farhoudi, JMV, Samani (2010a). Analysis of the Water Surface Profiles through Coarse Porous Medium. Iranian Water Research Journal, 4(7), 77-84.
Sedghi-Asl, M., H. Rahimi., J. Farhoudi and JMV , Samani (2010b). On the Flow Profiles in Coarse Porous Media. 9th Conference of Iranian Hydraulic Association, University of Tarbiat Modares. 9-11 November, Tehran, Iran.
Bari R, Hansen D. (2002). Application of gradually-varied Flow algorithms to simulate buried streams. Journal of Hydra. Res (IAHR) 40(6), pp 673-683.
Bear J. (1972). Dynamics of Fluids in Porous Media. Elsevier Science, New York.
Hansen D, Zhao W.Z. and Han S.Y.(2005). Hydraulic performance and stability of coarse rockfill deposits. Water Management VOL. 158 Issue WM4.
Hosseini S. M., Joy, D. M. 2(006). Calibration of Hydraulic Parameters for Water Research Foundation of Australia, Melbourne.
Samani  H. M. V, Samani. J  M. V,  Shaiannejad M . 2003. Reservoir Routing using Steady and Unsteady Flow through Rockfill Dams. Journal of Hydra. Eng (ASCE) Vol. 129, No. 6.
Parkin A.K. 1963. Rockfill dams with inbuilt spillways I-hydraulic characteristics. Bulletin 6, University if Melbourne and of Civil Engineering, Technical University of Nova Scotia, Halifax, NS, Canada.
Stephenson D. 1979.  Rockfill in Hydraulic Engineering. Elsevier Scientific, Amsterdam.
Wilkins  J.K. 1956. Flow of water through rockfill and its application to the design of dams. Proc. 2nd Australia-New Zealand Conf. on Soil Mechanics and Foundation Engineering Christchurch, pp 141-149.