Evaluation and Seepage Analysis of Rock-Fill Dam Subjected to Water Level with Seep and Flac in Gotvand-Olya Dam

Building dam is very rapidly developing in Iran; then caring the technical points will help us tomaintain their firmness and strength and also use it in suitable manor. One of the problems of soil dams in theworld is the seepage and leaking phenomena. The problem of leaking of water and the ways of controlling theleakage in soil dams is one of the most important technical problems in designing, building, well maintainingand use of soil dams. In this analysis, hydraulic circulation in spongy environments and numeral methods ofsolving equation of water circulation in saturated soils was analyzed and then leakage analysis was performedusing mathematical models. Finally, analyzing of applied model was conducted using Flac2d, Seep/w2dsoftware. The soil dam of Gotvand Olya was considered as special study and the amounts of leakages inheights of 135, 150, 185, 209, 230, 234 and 244, were analyzed. Data at the height of 135,150,185 were compared.In conclusions using exact tools it was found that the obtained results of Flac2d software was more precise thanSeep/w2d software.