An Extension of the Dewey System of Classification As Applied to Mining
An Extension of the Dewey System of Classification As Applied to Mining
C a Carl Alton Allen
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. 831 Causes of caving ground. . 832 Prevention of caving ground. . 833 Effect of caving ground. . 834 Handling of caving ground. . 835 Surface caving or subsidence. 622. 84 Flooding of mines. . 841 Causes of mine floods. 7 8 THE COLORADO SCHOOL O/ ; MINES 622. 842 Prevention of mine floods. . 843 Effect of mine floods. . 844 Handling mine floods. 622. 85 Accidents to miners. . 851 Classification of metal mine accidents. (Note If desired, each class may be divided into fatal and non fatal accid...ents. ) . 1 Surface accidents. . 11 Overwinding cage, skip or bucket. . 12 Falls from ladders, bins, etc. . 13 Falling down shaft or prospect hole . 14 Machinery accidents. . 15 Handling loose rock or ore. . 16 Tramming gravity trams. . 17 Coming in contact with live wire. . 18 Operating hydraulic or placer machines . 19 Miscellaneous. . 191 Boiler explosions. . 192 Lightning. . 193 Avalanches. . 194 Snow slides. . 2 Shaft accidents. . 21 Falls from buckets, cage, etc. , while in motion. . 22 Getting off while in motion.
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