A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tunneling 23 miles through rockies
Piercing Continental Divide to bring water to Denver; 10-ft 3-in. diam tunnel will divert water from future Dillon Dam to eastern slope of Divide; tunneling works are carried out at two ends and also at midway through two 1000-ft steep access shafts; it takes about 60 min to drill and 20 min to load 42 to 52 holes per heading using 2-platform jumbo; problems of temperature and ground water.
Tunneling 23 miles through rockies
Piercing Continental Divide to bring water to Denver; 10-ft 3-in. diam tunnel will divert water from future Dillon Dam to eastern slope of Divide; tunneling works are carried out at two ends and also at midway through two 1000-ft steep access shafts; it takes about 60 min to drill and 20 min to load 42 to 52 holes per heading using 2-platform jumbo; problems of temperature and ground water.
Tunneling 23 miles through rockies
Eng News -- Rec
Engineering News-Record ; 163
1959
Article (Journal)
English
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| Engineering Index Backfile | 1965
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