In this article, the behavior of one widely used excavation supporting system called Contiguous Bored Pile (CBP) Retaining wall is studied using Finite Element software of PLAXSIS. The embedded depth of wall is a fundamental design parameter attainable in the design phase and it is known that the wall displacement decreases with increasing pile embedded depth. However, what is remained unknown and is meant to be revealed in this study is that to what extent increasing wall embedded depth c...