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Mining Publication: Mechanics of a Large, Strain-Type Rock Burst and Design for Prevention

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July 2002

Image of publication Mechanics of a Large, Strain-Type Rock Burst and Design for Prevention

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 tabular 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.

Authors: BG White, TJ Williams, JK Whyatt

Conference PaperJuly - 2002

  • Adobe Acrobat - Portable Document Format (.PDF)

    0.27 MB

NIOSHTIC2 Number: 20030440

NARMS-TAC 2002: Mining and Tunnelling Innovation and Opportunity, Hammah R, Bawden W, Curran J, Telesnicki M, eds. Vol 2. Toronto, Ontario, Canada: Univ. of Toronto, Toronto, July 7-10, 2002; :1095-1100

 
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