A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Roof Bolting in Red Ore Mines of Birmingham District,
Experience in iron mines of Tennessee Coal and Iron Division, U S Steel Co; since 1948 over 800,000 roof bolts were installed; characteristics of roof conditions and difficulties encountered in maintaining wood timbering close to working face; advance of roof bolting practice; testing of bolts; accident statistics; benefits.
Roof Bolting in Red Ore Mines of Birmingham District,
Experience in iron mines of Tennessee Coal and Iron Division, U S Steel Co; since 1948 over 800,000 roof bolts were installed; characteristics of roof conditions and difficulties encountered in maintaining wood timbering close to working face; advance of roof bolting practice; testing of bolts; accident statistics; benefits.
Roof Bolting in Red Ore Mines of Birmingham District,
Min Congress J
Chabot, Jr., L.S. (author)
1952
4 pages
Article (Journal)
English
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