"Swelling Ground" Contrasted With "Heavy Ground" In Mines

The American Institute of Mining, Metallurgical, and Petroleum Engineers
Rollin Farmin
Organization:
The American Institute of Mining, Metallurgical, and Petroleum Engineers
Pages:
4
File Size:
722 KB
Publication Date:
Jan 1, 1944

Abstract

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"SWELLING GROUND" delivers pressure on mine timbers that originates in expansion of the wall rock, whereas "heavy ground" delivers only gravitative pressure. Of the several possible causes considered, the swelling is attributed to the physical surface action of water on gouge and flaky rocks at the periphery of the mine opening.
Citation

APA: Rollin Farmin  (1944)  "Swelling Ground" Contrasted With "Heavy Ground" In Mines

MLA: Rollin Farmin "Swelling Ground" Contrasted With "Heavy Ground" In Mines. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1944.

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