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Research Study of Coal Mine Rock Reinforcement.

Authors
Lang-TA; Bischoff-JA
Source
NTIS: PB/82-218041 :227 pages
Link
NIOSHTIC No.
10002409
Abstract
Concepts and equations have been developed to quantitatively determine stability of a rock-bolted coal mine roof as a structural (beam-arch) member consisting of reinforced rock units. The equations took into account rock-bolt tension, length, spacing, and orientation; size of opening; strength and physical properties of the rock; and loads from distressed rock. Using sensitivity analyses and the results from relevant previous analytical and physical model investigations, the equations were critically reviewed. It was concluded that the equations can essentially be validated by using small-scale physical models and the full size mine entry model at the Bureau of Mines Spokane Research Center.
Publication Date
19810101
Document Type
CP; Final Contract Report;
Fiscal Year
1981
NTIS Accession No.
PB82-218041
NTIS Price
A12
Identifying No.
OFR 72-82
NIOSH Division
SRC;
Source Name
NTIS: PB/82-218041
Performing Organization
Leeds, Hill and Jewett, Inc.
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