Rock fragmentation by blasting—a literature study of research in the 1980′s and 1990′s

Abstract When blasting rock, interactions occur between rock mass properties, explosives properties, blasting geometry and the detonation timings. A more optimised use of resources requires a better understanding of these interactions. Innovative algorithmic tools for use in complex numerical models are required and the results of such models are needed to inform us of both the physics of blasting and the modelling method limitations. Many further refinements and 2D to 3D generalisations are required for isotropic rock properties before the complexity of realistic rock mass properties can be introduced. The recognized importance of better rock structure characterization and assessment of in-situ block size distributions has promoted promising new empirical approaches. In this broad context, the paper will attempt to chart recent research in the understanding of rock blasting processes drawing upon the work of researchers worldwide. The authors' own contributions to: numerical modelling of dynamic fracture...

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