عنوان مقاله [English]
One of the most critical steps in analysing the stability of slopes is to detect and measure the shear strength parameters which are added at the fracture point. Shear stress parameters are expected to be more than the shear strength parameters along the surface.
To detect the shear strength parameters of a slided slope, there is a need to know the pre- sliding geometry. Having the pre-sliding geometry, it is possible to detect the shear strength parameters at the fracture point by means of a Back Analysis technique and to investigate the present properties of the slope and other slopes of that region.
In this article, in order to get the pre-sliding geometry, by means of the existing geometry and, also, the same slided points, an exponential regressive function is used and the geometry is simulated by Surfer 8 Soft ware.