Abstract: This paper summarizes the different blasting methods use in the highway rock cuts. It is suggested that the rock cut through blasting should consider the rock mass classification, topography and the adjacent environment so that the blasting design can be optimized. The highway rock mass classification method has been discussed. The presplit technique is appropriate for the hard rock mass, whereas, the smooth blasting with a protective layer is more applicable to the soft rock mass to avoid the adverse effect on the cut slope. The fly rock due to the blasting, vibration impact on the adjacent pedestrians and structures should also be controlled and mitigated.

Key words: Highway, Hard Rock Mass, Soft Rock Mass, Protective Layer, Blasting Induced Vibration