A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Methods of rock-dusting American coal mines
History of rock dusting in United States; investigations by Bureau of Mines; State Law requirements; progress in rock dusting; specifications; types of dust distributors; methods of rock dusting; quality of dust used, rock dust barriers; sampling; typical rock dusted mine; cost of rock dusting; instances where rock dusting is believed to have stopped or limited explosions.
Methods of rock-dusting American coal mines
History of rock dusting in United States; investigations by Bureau of Mines; State Law requirements; progress in rock dusting; specifications; types of dust distributors; methods of rock dusting; quality of dust used, rock dust barriers; sampling; typical rock dusted mine; cost of rock dusting; instances where rock dusting is believed to have stopped or limited explosions.
Methods of rock-dusting American coal mines
U S Bur Mines -- Report Investigation
Forbes, J.J. (author)
1939
22 pages
Report
English
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Methods of rock dusting bituminous mines
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Methods of rock dusting bituminous mines
| Engineering Index Backfile | 1925
Methods of rock dusting bituminous mines
| Engineering Index Backfile | 1924
Rock dusting and sampling including wet rock dusting, at bureau of mines experimental coal mine
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