An Introduction to Mining Seismology, Volume 55An Introduction to Mining Seismology describes comprehensively the modern methods and techniques used to monitor and study seismicity and rockbursts in mines. Key case histories from various worldwide mining districts clearly illustrate and skillfully emphasize the practical aspects of mining seismology. This text is intended as a handbook for geophysicists and mining and rock mechanics engineers working at mines. It will also serve as an essential reference tool for seismologists working at research institutions on local seismicity not necessarily induced by mining.
|
From inside the book
Results 1-3 of 49
Page 266
... spectra do not even resemble each other . To diminish the deviation between the two spectra as much as possible , a taper u ( t ) is introduced that is zero outside the interval ( −T / 2 , T / 2 ) and then the selected portion of the ...
... spectra do not even resemble each other . To diminish the deviation between the two spectra as much as possible , a taper u ( t ) is introduced that is zero outside the interval ( −T / 2 , T / 2 ) and then the selected portion of the ...
Page 268
Slawomir Jerzy Gibowicz, Andrzej Kijko. 1991 ) . The uncorrected spectra are often characterized by the decay coeffi- cient distinctly higher than the most often observed value of 2. In contrast , the corrected spectra of mine tremors ...
Slawomir Jerzy Gibowicz, Andrzej Kijko. 1991 ) . The uncorrected spectra are often characterized by the decay coeffi- cient distinctly higher than the most often observed value of 2. In contrast , the corrected spectra of mine tremors ...
Page 273
... spectra show that estimates of fo based on the ( No , J ) parametrization are more stable against changes in the falloff rate of the spectrum than estimates of the spectral level no and corner frequency fo based on the ( K , J ) ...
... spectra show that estimates of fo based on the ( No , J ) parametrization are more stable against changes in the falloff rate of the spectrum than estimates of the spectral level no and corner frequency fo based on the ( K , J ) ...
Contents
Introduction | 1 |
Location of Seismic Events in Mines | 48 |
Optimal Planning of Seismic Networks in Mines | 78 |
Copyright | |
10 other sections not shown
Other editions - View all
Common terms and phrases
A₁ aftershocks amplitude anisotropy applied approximation asperity assumed attenuation axes axis body waves calculated coal coda coda waves coefficients components coordinates corner frequency corresponding covariance matrix crack Crampin density depth described deviatoric dilatancy direction displacement distance distribution double-couple earthquake effects elastic constants equations estimated fault plane fault-plane solutions focal mechanism foreshocks fracture function Geophys Gibowicz given Green function hypocenter induced seismicity interface inversion isotropic Kijko linear M₁ magnitude McGarr medium method mining motion observed occur P-wave polarization problem procedure radiation pattern ratio recorded relation rock rockbursts rockmass scattering Seism seismic energy seismic events seismic moment seismic network seismic stations seismic tomography seismic waves seismograms shear waves shear-wave splitting shown in Fig slip spectra spectrum split shear waves strain stress drop surface symmetry technique tensor tion tremors vector velocity model vertical viscoelastic volume waveforms