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Measurement of pressures on rock pillars in underground mines.
Use of subaudible noises for prediction of rock bursts
The microseismic method of predicting rock failure in underground mining.
The microseismic method of predicting rock failure in underground mining.
Standardized tests for determining the physical properties of mine rock
Diamond drilling and diamond bit investigation
Diamond drilling and diamond bit investigation.
A gage and recording equipment for measuring dynamic strain in rock