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Economic benefits of systematic roof bolting in Ziegler No. 3 Mine, Bell & Zoller Coal & Mining Co., Williamson County, Ill.,

Economies through roof bolting in an Indiana coal mine

Successful use of wooden roof bolts in Stony Point Mine, Stony Point Coal Co., Hopkins County, Ky.

Roof-bolt recovery in the middle west

Published Year

• 1950-1959 (4)

Subject

• Mine roof bolting (4) *
• Coal mines and mining--Indiana (1)
• Coal mines and mining--Kentucky--Hopkins County (1)
• Coal mines and mining--Safety measures (1)
• Mine accidents--Illinois (1)
• Mine timbering (1)

Author

• Kelly, L. W. (4) *

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