Soil nailing is an efficient technique for stabilizing different soil structures. This method has been widely used to improve stability of slopes. Soil nailing constructions commonly involve three basic process: excavation, nail installation and face stabilization. The nails are inserted into ground by either drilling or grouting and are usually arranged in both horizontal and vertical directions. There are many different approaches to understand Soil-nailed wall behavior under static conditions as well as dynamic loading indicate satisfactory consistency with measurements of the full experimental wall. Symmetric boundary conditions are considered to undertake static analyses. Having better perception of wall performance, an inclusive parametric study is conducted considering influence of different factors on wall behavior. Some features such as, soil nail inclination, nail length, soil strength properties, nail layout on wall surface, nail length pattern, slope inclination an soil density are among those important parameters which are studies during analyses. Results indicate that nail inclination maintain to improve wall performance but until some specific extent. Rather very steep nails result in weakened performance of structure leading to its failure. Moreover, results indicate that limit equilibrium methods like kinematic approach leads to overestimation of mobilized forces along nails. Soil constitutive behavior for dynamic analyses is predicted taking into account soil hysteresis behavior. An where represents soil subgrade. The boundary conditions are considered to be antisymmetric during dynamic analyses. Effects of different crucial factors are monitored during investigations. Some parameters such as, soil constitutive behavior, nail inclination , nail length as well as soil strength properties have been examined. In final, some graphs attributed to lateral earth pressure behind wall facing in addition to peak acceleration response, peak horizontal displacement and maximum tensile force along nails are presented better investigating behavior of these structures. Key Words Soil nailed wall, limit equilibrium methods, soil hysteresis behavior, dynamic loading
