Abstarct: One of the most complicated work in civil engineering is excavation in municipals. To protect human lives in and out of excavation area and neighbor buildings and to assemble safe condition to do excavation, should make excavation’s wall stable with nailing, anchoring and so on. There is various type of retaining structures which choose according to type of soil and its specification, depth of embankment, sensitivity of the adjacent buildings and …. Excavation projects run by those involved and by the individuals and organizations concerned are superintended. We need to use measures during excavation operations, before and after work, which they can use to prevent accident during excavation. In this thesis, first of all introduced 3 most important excavation projects in Mashhad city then define specification of soil and used materials in projects into the Plaxis 2d model. With two behavioral models (HS & MC) analyses them and compare with observation tools that installed on walls of excavation. Finally, after comparison between them we gather information about which behavioral model in which project condition is better.