A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Illustrated report on construction of 35-ft diam spillway tunnel; excavation of 31,000 cu yd of rock for 955 ft tunnel completed in 200 days by using diamond drill; spading of drill holes and delays in shooting enabled good fragmentation and clean breaks despite blocky nature of rock; air for operation of drill delivered by compressor plant with capacity of over 7000 cfm. (see also unsigned description in Pac Bldr and Engr v 55 n 3 Mar 1949 p 65-7)
Illustrated report on construction of 35-ft diam spillway tunnel; excavation of 31,000 cu yd of rock for 955 ft tunnel completed in 200 days by using diamond drill; spading of drill holes and delays in shooting enabled good fragmentation and clean breaks despite blocky nature of rock; air for operation of drill delivered by compressor plant with capacity of over 7000 cfm. (see also unsigned description in Pac Bldr and Engr v 55 n 3 Mar 1949 p 65-7)
Diamond drills pay at hungry horse
Western Construction News
Wheeler, W.E. (author)
1949
4 pages
Article (Journal)
English
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| Engineering Index Backfile | 1949
| Engineering Index Backfile | 1950
Engineering Index Backfile | 1955
Concreting methods at Hungry Horse
| Engineering Index Backfile | 1950