Evaluation the Effects of Stage Construction Modeling in the Behavior of Embankment Dams

Embankment dam analyses have been started on stage construction and then have been continued in steady seepage stage. Finally analyses have been finished with seismic analyses in seismic area. The static modeling has been considered as a primary condition for dynamic modeling. This part of analyses is important. In order to investigate the effect of number of used layer in modeling at the end of construction, Masjed Soleiman dam has been selected as a case study. Different parameters have been investigated using of finite element method in two stages with changing in number of the layers. In the center line of dam section, Results shows that different rate of displacements and XY shearing stress in monolayer model rather than multilayer model in end of the construction. Modeling of steady seepage stage has continued by adding water in the reservoir. In this segment of analyses, vertical displacement had significant differences. Finally, by studying the parameters of multilayer models in 5 special points that have been located in body of dam, 10 layers have been offered for suitable modeling of dam behavior.