A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction of two parallel tunnel intakes for Sir Adam Beck-Niagara generating station, each 5 1/2 mi long and 51 ft in diam, under city of Niagara Falls, Canada, required blasting and excavating of 4,375, 000 cu yd of rock; tunnels were driven parallel to each other from five shafts sunk into each tunnel; for top heading face, typical drill round consisted of 159 holes varying in length from 11 to 24 ft.
Construction of two parallel tunnel intakes for Sir Adam Beck-Niagara generating station, each 5 1/2 mi long and 51 ft in diam, under city of Niagara Falls, Canada, required blasting and excavating of 4,375, 000 cu yd of rock; tunnels were driven parallel to each other from five shafts sunk into each tunnel; for top heading face, typical drill round consisted of 159 holes varying in length from 11 to 24 ft.
Driving twin rock tunnels in Ontario
Explosives Engr
Dyment, R. (author)
Explosives Engineer ; 35
1957
6 pages
Article (Journal)
English
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