The researchers analysed seismicity in two deep gold mines in terms of strain energy release during mining. Mining took place with regularly-spaced dip pillars and backfill for regional support. The mines were chosen to represent mining of the Carbon Leader reef (CLR) and the Ventersdorp Contact reef (VCR). More than 500,000 m2 of reef were mined over several years and generated more than 10,000 events of magnitude greater than 0,0 in each case. The researchers proposed a simple softening model to explain the CLR behaviour
Reference:
Spottiswoode, SM. Linzer, LM and Majiet, S. 2008. Energy and stiffness of mine models and seismicity. 1st Southern Hemisphere International Rock Mechanics Symposium (SHIRMS 2008), Perth, Western Australia, 16-19 September 2008, pp 693-707
Spottiswoode, S., Linzer, L., & Majiet, S. (2008). Energy and stiffness of mine models and seismicity. Australian Centre for Geomachanics. http://hdl.handle.net/10204/3333
Spottiswoode, SM, LM Linzer, and S Majiet. "Energy and stiffness of mine models and seismicity." (2008): http://hdl.handle.net/10204/3333
Spottiswoode S, Linzer L, Majiet S, Energy and stiffness of mine models and seismicity; Australian Centre for Geomachanics; 2008. http://hdl.handle.net/10204/3333 .
