Details:

Personal Author:
White, Brian G. ; Williams, Theodore J. ; Whyatt, Jeffrey K.
White, Brian G. ; Williams, Theodore J. ; Whyatt, Jeffrey K. Less -
Corporate Authors:
Spokane Research Laboratory (National Institute for Occupational Safety and Health)
Description:
Detailed mapping and examination of the site of a large rock burst at the Lucky Friday Mine, Mullan, ID, demonstrated conclusively that damage was caused by a splitting and buckling failure mechanism initiated by separation of rock into layers along steeply dipping metamorphic shear foliation subparallel to the affected crosscut. The thin tablular layers then buckled into the crosscut from both sides. Rigorous control of the burst by these layers suggests practical measures for avoiding bursts in crosscuts in the future by repositioning and reorienting openings so that splitting and buckling are reduced or precluded.
Subject:
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Mining

Source:
NARMS-TAC 2002, "Mining and Tunnelling Innovation and Opportunity," Proceedings of the 5th American Rock Mechanics Symposium and the 17th Tunnelling Association of Canada Conference, July 7-10, 2002, Toronto, Ontario, Canada. Hammah R, Bawden W, Curran J, Telesnicki M, eds., Toronto, Ontario, Canada: University of Toronto Press, 2002 Jul; 2:1095-1101
Document Type:
Book Chapter
Genre:
Conference Publications
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
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urn:sha256:bcf4b5d7a478bac70f1e83b0b405f1e98d5f5673e5a894424288bde6fb68bffb
File Type:

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