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Rockburst handbook for Ontario hardrock mines Destressing Mechanics Effect of Surrounding Rock Induced by Blasting Precondition at Deep Drift This report summarizes the results of a five-year research project funded as part of the. Canadian Rockburst Research Program (1990 to 1995). International Journal of Rock Mechanics and Mining Sciences 68: 44–54. Hedley, D.G. 1992. Rockburst Handbook for Ontario Hardrock Mines. Canmet. Rockburst handbook for Ontario Hardrock Mines. CANMET report SP92-1E (305 p.). Hoek, E. (1992). When is a design in rock engineering acceptable?Rockburst research handbook. Rock bursts -- Canada -- Prevention summary of five years of collaborative research on rockbursting in hardrock mines. Rockburst handbook for ontario hard rock mines, Ontario Mining Association Hoek, E. 2007. Practical rock engineering. Hoek, E. & Brown, E. T. 1997.