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Regional bumps: case studies from the 1958 bump symposium.

Authors
Whyatt-J; Varley-F
Source
Trans Soc Min Metal Explor 2010 Jan; 326:101-105
NIOSHTIC No.
20036372
Abstract
A variety of dynamic failure cases with regional impact were described at a bump symposium held in 1958. These types of events, while rare, are of particular interest because their ability to impact a large area has disaster potential. These cases can be grouped into two broad classes of events by mechanism. These are (1) a slip along steeply dipping faults and (2) the fracturing of strong strata above or below the coal seam. Both failure modes produce dynamic or "shock" loads on the perimeter (roof, rib and floor) of mine openings. Special consideration should be given to these failure modes in the planning of deep coal mines, since their occurrence is not within the professional experience of many contemporary workers. In addition, their potential is not evaluated by many of the analysis tools commonly used to evaluate hazards in coal mine plans.
Keywords
Mining-industry; Underground-mining; Mine-disasters; Coal-mining; Geology
CODEN
TMENAE
Publication Date
20100101
Document Type
Journal Article
Editors
Yernberg-WR
Fiscal Year
2010
NTIS Accession No.
NTIS Price
ISBN No.
9780873352710
ISSN
1075-8623
NIOSH Division
OMSHR
Source Name
Transactions of the Society for Mining, Metallurgy, and Exploration
State
WA; CO
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