Abstract
Barton׳s shear strength model has been incorporated into the FLAC3D code as a ubiquitous joint model using the plastic flow rule, to analyze the potential effect of fault-slip bursts on mine openings. Comparison of the incorporated model with the classical Mohr–Coulomb model is conducted through a case study of a primary fault that is parallel to a steeply dipping tabular ore deposit, which is mined out by the sublevel stoping method. Based on the results obtained from the numerical analyses, seismic source parameters are calculated and compared for each case. The results show that faults having rough surfaces tend to cause much larger seismic events than faults with smooth surfaces. In addition, parametrical study with respect to fault-surface roughness shows that seismic moment and radiated energy significantly vary with the fault-surface roughness and the seismic moment does not necessarily correlate with the radiated energy. Peak particle velocity excited by seismic waves arising from the simulated fault-slips is also examined. It is found out from the results that peak particle velocity is strongly dependent upon the fault surface roughness and has a correlation with the radiated energy, but not with seismic moment.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Rock Mechanics and Mining Sciences
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
