Engineering rock mass classifications are vital for empirical approach to evaluate and predict engineering behavior of a rock mass. Now well established empirical relations between behavior of the rock mass and the rock mass properties with regard to specific engineering applications have become an important tool for resolving many geo-engineering issues related to mega engineering projects. Engineering classifications of Rock Masses have been applied in tunneling and underground mining with great success for many years. Some rock mass classification systems developed originally for underground, excavations were also modified and adopted for many different applications including slope stability applications. The rocky slopes in general as well as along road and rail tracks are important locales for slope analysis and stabilization. In this study five classification systems are thoroughly studied for rock stability assessment and compared on the basis of reports of various research paper published so far. The methods are Slope Mass Rating and it’s off shoots, such as Continuous Slope Mass Rating, Chinese Slope Mass Rating, Graphical Slope Mass Rating and Landslide Hazard Evaluation Factor. We have tried to work which of these method can best predict slope failure as a normal process of mass wasting and mass movement as well as triggering mechanism such as pore water pressure increase, sudden down pour, earthquakes etc. So as to work out structurally controlled failure mechanism to find suitable ways for safe rock slope cuts for road networks in hilly and mountains terrain.
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