عنوان مقاله [English]
نویسندگان [English]چکیده [English]
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.