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Roof bolting results in production gains

Advantages and production gained from use of suspension type roof support at Kohler Mine, Saint Louis, Rocky Mountain and Pacific Coal Co; description of character of roof; fractures and slips in vertical and horizontal planes cause interlocking of shaly material with formation of flat arch, which becomes firmly emplaced and provides adequate anchorage for roof bolts; timbering continues to be main method of roof supports.

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Roof bolting results in production gains

Advantages and production gained from use of suspension type roof support at Kohler Mine, Saint Louis, Rocky Mountain and Pacific Coal Co; description of character of roof; fractures and slips in vertical and horizontal planes cause interlocking of shaly material with formation of flat arch, which becomes firmly emplaced and provides adequate anchorage for roof bolts; timbering continues to be main method of roof supports.

Roof bolting results in production gains

Advantages and production gained from use of suspension type roof support at Kohler Mine, Saint Louis, Rocky Mountain and Pacific Coal Co; description of character of roof; fractures and slips in vertical and horizontal planes cause interlocking of shaly material with formation of flat arch, which becomes firmly emplaced and provides adequate anchorage for roof bolts; timbering continues to be main method of roof supports.

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Title:

Roof bolting results in production gains

Additional title:

Mechanization

Published in:

Mechanization ; 15

Publication date:

1951

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Coal mines and mining

© Metadata Copyright Elsevier B. V. All rights reserved.

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