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Mine at Sabie in Eastern Transvaal is in heavy rainfall area; reef occurs in dolomites; at times, 48 tons of water pumped for every ton of rock hoisted; details of driving 12,898 ft of main drainage tunnel and additional work making total of 16,577 ft; blasting difficulties, due to flow of water at high pressure from drilled holes; concreting; ventilation. (See also Chem, Met and Min Soc S Africa -- J v 41 n 7 Jan 1941 p 242-57; S African Min and Eng J v 51 pt 2 n 2505 Feb 1 1941 p 577, 579 and 581)
Mine at Sabie in Eastern Transvaal is in heavy rainfall area; reef occurs in dolomites; at times, 48 tons of water pumped for every ton of rock hoisted; details of driving 12,898 ft of main drainage tunnel and additional work making total of 16,577 ft; blasting difficulties, due to flow of water at high pressure from drilled holes; concreting; ventilation. (See also Chem, Met and Min Soc S Africa -- J v 41 n 7 Jan 1941 p 242-57; S African Min and Eng J v 51 pt 2 n 2505 Feb 1 1941 p 577, 579 and 581)
Driving Glynn's Lydenburg drainage tunnel
Iron Coal Trades Rev
L'Ange, R.L. (author)
1941
Article (Journal)
English
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Driving Glynn's Lydenburg drainage tunnel
| Engineering Index Backfile | 1941
Driving mines drainage tunnel in North Wales
| Engineering Index Backfile | 1932
Driving mines drainage tunnel in North Wales
| Engineering Index Backfile | 1932
| Engineering Index Backfile | 1941