The geographical discontinuities are referred as the structural discontinuities that are seen due to the natural phenomenon. With the excavations undertaken at the hillsides of any plain areas, the slope of the soil seems to be at an imbalanced position which clearly states the imbalance with forming the foliation, fracture, cleavage, crack and fissures etc. the properties of the discontinuity such as the orientation roughness infilling and the persistence are important for the bringing stability of the slope of the jointed rocks. The discontinuity seems to be occurred due to the development of the immense pressure, and the mechanical characteristics are illustrated to be lying at the discontinuity set. It enables the creation of the anisotropic rock mass or the soil that enhances the gap between the developments of the mechanical characteristics.
The orientation of a major geographical discontinuity is depicted to be relative by considering the engineering structures with o controlling the possibility for determining the unstable conditions (Yamawaki et al., 2016). The structure clearly shows the orientation of the discontinuity which must be defined by the help of the dip and the dip direction. The strike seems to be created at the right angles to the top, and thereby, the relationship can be appropriately explained by the helping relationship between the strike and the dip direction.
The above two figures simply illustrate the explanation regarding the possibility of the slope failure if the plane failure is at the low dip than the slope angle. The dip angle discontinuity is illustrated to be increasing, and the illustration can be easily shown by sub-parallel to the slope angle, and the relative slope seems to be becoming stable in nature (Bui et al., 2011). The discontinuity is shown to be further increasing in dip angle, and it enables to undergo the toppling failure.
A jointed rock is shown to be consisting of higher permeability and the reduction in the shear stress along the planes of the discontinuity is clearly increased with depicting the negligible tensile strength.