Roof Bolting Practices, Dominion Coal Company, Limited, Sydney, N.S.
Since 1950, a total of 164 miles of levels and rooms have been roofbolted in the collieries of the Dominion Coal Company. Roof bolting is an efficient and economic method of support where heavy timber sets or steel booms are necessary for temporary roof support, or where conventional methods of support interfere with the passage of mechanical mining equipment. This paper discusses present roof bolting practices and special bolting applications.
bolting, Dominion Coal Company, Dominion Steel and Coal Corporation, room and pillar, Sydney, Nova Scotia, Bolts, Coal, Collieries, Roadways, Roof bolting, steel, Steels, Support, Supports