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Keywords: ventilation shaft
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Proceedings Papers

Paper presented at the The 42nd U.S. Rock Mechanics Symposium (USRMS), June 29–July 2, 2008
Paper Number: ARMA-08-027
... loosening zone based on the measurement at the earlier stage of excavation, the Rock Behavior Classification in Tunneling (RBCT) had been proposed. It has five classes: Class I to V. Japan Atomic Energy Agency has excavated a 4.5 m diameter ventilation shaft and a 6.5 m diameter access shaft in Horonobe URL...
Proceedings Papers

Paper presented at the Alaska Rocks 2005, The 40th U.S. Symposium on Rock Mechanics (USRMS), June 25–29, 2005
Paper Number: ARMA-05-892
... classification system is applicable to the design of ventilation shafts. This paper investigates the structural stability of ventilation raises in jointed rock. Structural data are used to generate fracture systems and limit equilibrium techniques are employed to determine the stability of all wedges formed...
Proceedings Papers

Paper presented at the The 18th U.S. Symposium on Rock Mechanics (USRMS), June 22–24, 1977
Paper Number: ARMA-77-0276
... vehicle ventilation shaft disposal room hagconsult ab CONCEPTUAL DESIGN OF A RADIOACTIVE WASTE ISOLATION FACILITY IN PLUTONIC ROCK By illi m H. RE/SPEC Inc., Rapid City, South Dakota Robert J. Pine** Acres Consulting Services Ltd., Niagara Falls, Ontario Paul F. Gnirk RE/SPEC Inc., Papid City...

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