Loads on friction props on a longwall face: M38-8/22E-PDF

"Based on underground measurements made at the Nova Scotia coal mines of the Dominion Coal Company, Limited, this paper presents a comparison between the physical properties of hardwood packs and steel friction props when used for longwall support. The probable loads supported by steel friction props on a longwall face at both the Dominion No. 20 Colliery and the Princess Colliery are delineated, and the results of the tests are presented in graphical form. It is concluded that the steel friction props are more efficient than the hardwood packs that they replaced as roof supports"--Abstract, p. 1.

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Department/Agency Natural Resources Canada. Dept. of Energy, Mines and Resources. Mines Branch.
Title Loads on friction props on a longwall face
Series Title Reprint series ;
Publication Type Series - View Master Record
Language [English]
Format Electronic
Electronic Document

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Note Cover title. "Reprinted from the Canadian Mining and Metallurgical Bulletin, Vol. 58, No. 634, pp. 175-181, Feb. 1965." Historical publication digitized from print 2017 [by Natural Resources Canada].
Date 1966.
Number of Pages 7 p. :
Catalogue Number
  • M38-8/22E-PDF
Departmental Catalogue Number 300101
Subject Terms Mining industry, Rocks, Physics