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Loose rock can be detected by infrared devices.

Authors
Merrill-RH; Stateham-RM
Source
Min Eng 1970 Nov; 22(11):59-62
NIOSHTIC No.
00000906
Abstract
This article summarizes the use of infrared techniques to detect loose rock around underground mine openings. Research to date shows that when differences of about 0.5 Deg. C or more exist between the air and rock temperatures in underground openings the loose rock will have a different temperature than the solid rock. The results obtained in several mines are discussed.
Keywords
Mining; Underground mines; Air temperature; Rock mechanics; Temperature effects
CODEN
MIENAB
Publication Date
19701101
Document Type
OP; Journal Article
Fiscal Year
1971
Identifying No.
OP 181-70
Issue of Publication
11
ISSN
0026-5187
Source Name
Mining Engineering
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division