The impact of stochastic variables on the rock blasting results
- Peruvian Mining Research Co., Lima (Peru)
It is widely accepted that the rock blasting results are a function of several stochastic variables given by: The natural geological structure of the rock mass (joint spacings, discontinuities length orientation and characteristics, physical-mechanical properties, such as: ultimate strengths and elastic properties, etc.); the detonation and explosion parameters of the explosive mixture (V.O.D., P2, T2, Q3, etc.); and the drilling and blasting pattern dimensions. In this paper the most important stochastic variables regarding the rock mass and the blast design dimensions are identified, described, and discussed. A non linear programming method to calculate the optimum burden is proposed and discussed. The great impact of the stochastic variable called burden on the rock blasting results is emphasized. A comparison between burden theoretical calculations and some field blast results is also shown.
- OSTI ID:
- 398387
- Report Number(s):
- CONF-960234--
- Country of Publication:
- United States
- Language:
- English
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