Blast Induced Damage Due to Repeated Vibrations in Jointed Gneiss Rock Formation

Blast Induced Damage Due to Repeated Vibrations in Jointed Gneiss Rock Formation 

Central Institute of Mining Fuel Research, India T. G. Sitharam 

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REVIEW OF LITERATURE ON ROCK MASS DAMAGE DUE TO REPEATED BLASTING 

Although far-field damage is not a severe problem at the excavation sites where the blasting faces moves away and vibration gets attenuated substantially, the authors observed that it is an acute problem when the rock mass is subjected to repeated vibrations due to multiple excavations in the vicinity as in the case of multiple tunnels and caverns. In view of the above arguments it was decided to go for the investigation of both near field and far field damage assessments at the Lohari Nag Pala Hydroelectric Power Project (LNPHPP) 

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