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Design concept for perimeter control blasting in drifting operations.

Authors
Iverson-SR; Hustrulid-WA
Source
45th US Rock Mechanics/Geomechanics Symposium, June 26-29, 2011, San Francisco, California. Alexandria, VA: American Rock Mechanics Association, paper no. 11-0175, 2011 Jun; :1000-1013
NIOSHTIC No.
20039501
Abstract
NIOSH has recently concluded an extensive blasting research and development program. One objective was to develop practical tools that encourage and facilitate the use of perimeter control in drift driving. NIOSH research suggests that proper design of the buffer row of the blastholes is the key to successful perimeter control. Specifically, if the buffer row of holes has been properly designed, the perimeter row of holes simply will do the final smoothing and shaping. Three blast damage models are presented and two blast design examples are described using model predictions. The paper concludes with recommendations for collecting the field experience to determine the optimum practical damage radius.
Keywords
Mining-industry; Mining-equipment; Blasting-agents; Geology; Ground-control; Ground-stability; Engineering-controls; Environmental-control; Environmental-engineering; Environmental-technology; Structural-analysis; Rock-mechanics; Underground-mining; Machine-tools; Explosion-damage; Control-methods; Control-technology; Models; Mathematical-models
Publication Date
20110626
Document Type
Conference/Symposia Proceedings
Fiscal Year
2011
NTIS Accession No.
NTIS Price
ISBN No.
9781618391544
NIOSH Division
OMSHR
Source Name
45th US Rock Mechanics/Geomechanics Symposium, June 26-29, 2011, San Francisco, California
State
WA; CA
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