Vibration prediction models and their efficacy in deciding explosive quantity in a blast

摘要

For scheming a safe blast, it is important to ascertain the level of ground vibration at a desired distance from the blasting spot. There are many well-known approaches to do it, out of which the most popular one is to derive an empirical predictor equation based on test shots and use any of the conventional vibration predictors. Going away from the conventional approaches, researchers like Dowding (1985), Jimeno et al. (1995) and others proposed different analytical models for direct evaluation of ground vibration which do not require prior field trials. The input parameters of such models include rock mass, rock-geologic, blast design and explosive properties. The present paper makes a comprehensive assessment of all such speculative models and their efficacy in deciding explosive quantity in a blast.