Passive seismic tomography for three-dimensional time-lapse imaging of mining-induced rock mass changes

摘要

Double-difference local earthquake tomography was used to image changing conditions within the rock mass of a block cave mine. Results from 2009 showed low-velocity zones where the initial undercut was developed. During late 2009 and early 2010 the block cave was developed. The tomogram from March 2010 shows a clear representation of the cave boundary and the associated highly stressed locations.