Integrated seismicity around deep-level stopes in South Africa

摘要: Abstract Stresses acting on a rock mass, elastic deformations of the area mined out, amount and method mining, geological features properties are known to influence mining induced seismicity. The effect stress seismicity can be measured by ratio (γE) cumulative seismic moment product rigidity volume convergence. has logarithmic nature dominated few largest events. To reduce this we use supplementary parameter that is empirically related incidence rockburst fatalities (γR). As larger events less hazardous per unit moment, γR controlled parameters γE were estimated for thirty seismogenic areas selected basis layouts, locations local geology from three deep-level mines in Carletonville district. It was found far constant. values 80 percentile 20 about five γR. scatter exceeded reduction closure expected introduction regional stability pillars. these pillars introduced factor or less, there scope improve mine layout design using characterize potential