Account of Seismic Impacts in Geomechanical Stability of Underground Structures

Authors:  
Rubric:     Seismic safety and seismic isolation of buildings   
Annotation:
Existing methods of underground mining design are not including special parameters for account of possible seismic events that cause additional dynamic effects on the elements of rock mass. Traditionally it is assumed that stability of underground structures on seismic effects is sufficiently large compared with terrestrial objects. Nevertheless, seismic effects may contribute to the loss of reserves due to dilution, and works at depth are of high risk here and even a minor factor is important. Calculations of stressed state of mining system at dynamical impacts is performed and seismic coefficient for safety factor assurance is proposed.