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Keywords: particle velocity
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Proceedings Papers

Paper presented at the 1st North American Rock Mechanics Symposium, June 1–3, 1994
Paper Number: ARMA-1994-0961
... displacement observation drift particle velocity rockbolt coefficient Upstream Oil & Gas rockmass rock surface pretension dynamic loading shank stiffness free surface Anchor numerical model Reservoir Characterization Simulation field trial bolt element dynamic strain head...
Proceedings Papers

Paper presented at the 1st North American Rock Mechanics Symposium, June 1–3, 1994
Paper Number: ARMA-1994-1033
... propagation of high-amplitude compressive stress waves through the mine workings. Using a particle velocity damage criterion of 0.30 mls as needed to induce tensile cracking at free surfaces in coal, the area of damage from a ML = 3.6 mine tremor (NElS) in a Utah coal mine is calculated to be about lOS m2...

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