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Title Validation of a synthetic rock mass model using excavation induced microseismicity

Authors J.M. Reyes-Montes, W.S. Pettitt and R.P. Young

Publication Reference 2007, Rock Mechanics: Meeting Society's Challenges and Demands. Proceedings of the 1st Canada-US Rock Mechanics Symposium. Vancouver, Canada, 27-31 May 2007

Abstract Microseismicity has been extensively used to monitor rock mass response to stress changes; in particular excavation induced damage at underground mines and engineered structures. A methodology has been developed to extract information on fracturing mode and orientation from existing microseismic catalogues. The method is based on the statistical analysis of event locations to determine the dominant structure defined within the seismic cloud. The interpretation is completed with the analysis of the temporal evolution of the energy content and growth patterns of the yielded volumes. The results from this analysis form the basis for the validation of the Synthetic Rock Mass Model for jointed rock presented in a companion paper by Pierce et al. Particle bond breaks in PFC3D are clustered into synthetic microseismic events following size and spacing criteria in order to simulate the activity recorded by a typical seismic array. The method to characterise the seismicity recorded in-situ is also applied to the clus

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Link http://www.canada-us-rockmechanics.ca/



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