Abstarct: ABSTRACT Today, due to the increasing growth of urban areas and in order to provide underground spaces for transportation and parking, it is necessary to perform deep excavations in the vicinity of neighboring structures or in the vicinity of transportation routes. Therefore, new and common methods are needed to increase safety during excavation. The subject of this research is focused on stabilization by using piles. It is essential to implement method with high efficiency to result maximum stability in excavation using a method that has a high speed and maximum stability. Utilization of piles can be beneficial for other uses in civil engineering as columns in case of placing the roof of underpasses. The present study is baxsed on software calculations using numerical solution of finite element method (FEM) in Abaqus environment. After controlling the accuracy of modeling and software performance, numerical modeling and parametric evaluation of excavation performance with in-situ pile guardian structure against incoming loads as well as deformation of the ground surface, excavation floor and wall are discussed. The parameters studied in this study are the effect of shotcrete between the piles, the execution of the concrete beam on top of the piles, the depth of penetration of the pile and the axial distance between the piles in the sandy soil. According to the analysis, Soldier piles with axial distance of 2.5 times the diameter of the pile and buried depth of 0.4 times the height of the pile, Besides that the implementation of concrete beams at the top and shotcrete between the piles are economically viable.