Soil nailing is an in-situ fortress strategy by inactive bars which can withstand tensile, shearing forces and bending moments. This methodology is used for holding blocks and for inclination alteration. Its disposition is a type of mixed materials and incorporates fundamentally two association systems: The dirt fortification grating and the commonplace earth weight on the help. The get together of the sidelong contact requires frictional properties for the dirt, while the readiness of the commonplace earth weight requires a relative rigidity of the considerations. At failure outline technique a multi-criteria is taken from the slice strategies utilized in slope stability experiment and is proposed too and prompt a yielding deflection in the tensile and shear forces. The idea of the method of the most extreme plastic work allows to determine the shear and tensile forces activated at failure in every single incorporation. The inclination stability investigation consider the passive force of support as well as utilizing a plan determinate.