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Ground control and safety implications of blast damage in underground mines.

Authors
Iverson-S; McHugh-E; Dwyer-J; Warneke-J; Caceres-C
Source
Proceedings of the 26th International Conference on Ground Control in Mining, July 31 - August 2, 2007, Morgantown, West Virginia. Peng SS, Mark C, Finfinger GL, Tadolini SC, Khair AW, Heasley KA, Luo Y, eds., Morgantown, WV: West Virginia University, 2007 Jul; :328-335
NIOSHTIC No.
20032991
Abstract
The National Institute for Occupational Safety and Health (NIOSH) is currently performing research to help mine operators minimize the amount of loose or damaged rock surrounding a blasted opening. Improperly designed blast rounds can result in excessive wall rock damage that may reduce the rock mass competency and increase ground support requirements. Unnecessary blast damage can cause many safety and operational concerns including an increased potential for injury from rock falls and other hazards resulting from sub-optimal blast designs. This paper focuses on the ground control and safety implications of blast damage in underground mines. A reduction in rock quality due to blasting can increase the amount of ground support required. Case study data collected by NIOSH in underground metal mines during standard drill and blast production rounds included blast vibration monitoring, detailed three-dimensional laser scanning of the as-built excavation, and geotechnical mapping of development headings.
Keywords
Ground-control; Ground-stability; Mining-industry; Underground-mining; Mine-shafts; Metal-mining
Publication Date
20070731
Document Type
Conference/Symposia Proceedings
Editors
Peng-SS; Mark-C; Finfinger-GL; Tadolini-SC; Khair-AW; Heasley-KA; Luo-Y
Fiscal Year
2007
NTIS Accession No.
NTIS Price
ISBN No.
9780978938321
NIOSH Division
SRL
Priority Area
Mining
Source Name
Proceedings of the 26th International Conference on Ground Control in Mining, July 31 - August 2, 2007, Morgantown, West Virginia
State
WA; WV
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