Loads on Friction Props on a Longwall Face

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.
Keywords: East Longwall, friction, load cell, props, Sydney Mines, Nova Scotia, Friction, Load, Loading, Mine, Mines, steel, Steels, Yield
Full Access to Technical Paper
PDF version for $20.00