A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hetch Hetchy tunnel construction
Progress report on driving 28 1/2 mi. bore through Coast Range which is last mountain barrier to be pierced before water from Hetch Hetchy can be delivered in San Francisco; organization and method developed for holding squeezing ground by sublining of gunite; plant installation and shaft sinking; cross-cuts to future tunnel provide working space at foot of shafts; pumping stations; standard timbering; air spades used for excavating in soft ground; deflection measurements taken in studies of rock pressures.
Hetch Hetchy tunnel construction
Progress report on driving 28 1/2 mi. bore through Coast Range which is last mountain barrier to be pierced before water from Hetch Hetchy can be delivered in San Francisco; organization and method developed for holding squeezing ground by sublining of gunite; plant installation and shaft sinking; cross-cuts to future tunnel provide working space at foot of shafts; pumping stations; standard timbering; air spades used for excavating in soft ground; deflection measurements taken in studies of rock pressures.
Hetch Hetchy tunnel construction
Eng. News-Rec
Engineering News-Record ; 156
1931
5 pages
8 Figs.
Article (Journal)
English
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Engineering Index Backfile | 1920
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Hetch Hetchy Coast range tunnel
Engineering Index Backfile | 1932
Construction features of Hetch Hetchy dam
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Coast range tunnel of hetch hetchy aqueduct
| Engineering Index Backfile | 1935