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Methods of construction of railroad tunnel 6.2 mi. long; survey methods used over range that rises to 12,000 ft. above sea level and 28,000 ft. above tunnel; plans and equipment of construction camps; tunneling in soft ground for 2 1/2 mi.; use of "Lewis Traveling Cantilever Girder"; ventilation tests for correlation of data on air-friction factors for tunnels of mining size and on factors for standard railroad tunnels; itemized cost data. (See also - discussion nos. 7 Sept., pp. 1741-1744 and no. 9 Nov., pp. 2037-2038, 2 figs)
Methods of construction of railroad tunnel 6.2 mi. long; survey methods used over range that rises to 12,000 ft. above sea level and 28,000 ft. above tunnel; plans and equipment of construction camps; tunneling in soft ground for 2 1/2 mi.; use of "Lewis Traveling Cantilever Girder"; ventilation tests for correlation of data on air-friction factors for tunnels of mining size and on factors for standard railroad tunnels; itemized cost data. (See also - discussion nos. 7 Sept., pp. 1741-1744 and no. 9 Nov., pp. 2037-2038, 2 figs)
Completion of Moffat tunnel of Colorado
Am. Soc. Civil Engrs. -- Proc
Betts, C.A. (author)
1930
38 pages
12 Figs.
Article (Journal)
English
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Completion of Moffat tunnel of Colorado
| Engineering Index Backfile | 1931
Completion of Moffat Tunnel of Colorado
| ASCE | 2021
The Moffat six-mile tunnel, Colorado
Engineering Index Backfile | 1927
Closure to “Betts on Completion of Moffat Tunnel”
| ASCE | 2021
Discussion of “Davies on Completion of Moffat Tunnel”
| ASCE | 2021