Investigation of a Rock-Burst Site, Sunshine Mine, Kellogg, Idaho

摘要

The report describes an investigation of a rock burst that occurred in May of 1994 in a rock mass between 4400 and 4600 levels of the Sunshine mine in Kellogg, Idaho. The team evaluated the current state of stress in the pillar and most likely cause of the rock burst by studying the seismic history of the pillar, examining the geology, analyzing the available in situ stress data, calculating possible fault-plane solutions for the burst, and performing a seismic velocity tomographic survey.