Mining Technology In 1964 – Underground Mining
- Organization:
- The American Institute of Mining, Metallurgical, and Petroleum Engineers
- Pages:
- 9
- File Size:
- 1333 KB
- Publication Date:
- Jan 2, 1965
Abstract
Metal prices continued to improve in 1964, resulting in the opening of new mines and re- activation of old ones. Larger and deeper shafts are being bored. At the AEC's Nevada Test Site, a 72-in. diam shaft is being bored to 3200 ft. In New Mexico a 1650-ft shaft was bored with a 48-in. bit, then reamed to 124 in. to 935 ft, and 102 in. to 1650 ft. Deviation was only 26 in. In California a shaft sinking machine has been developed which combines drilling and mucking equipment into one mobile, integral unit.
Citation
APA: (1965) Mining Technology In 1964 – Underground Mining
MLA: Mining Technology In 1964 – Underground Mining. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1965.