A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Harspranget ambitious Swedish undertaking
Project which utilizes waters of Lake Lulea, comprises dam and power station 225 ft down in granite; tungsten carbide tipped drills used in excavation of power rooms and tunnels; 600 to 700 cu m of rock removed with each charge of 500 to 600 kg of explosive.
Harspranget ambitious Swedish undertaking
Project which utilizes waters of Lake Lulea, comprises dam and power station 225 ft down in granite; tungsten carbide tipped drills used in excavation of power rooms and tunnels; 600 to 700 cu m of rock removed with each charge of 500 to 600 kg of explosive.
Harspranget ambitious Swedish undertaking
Mine Quarry Eng
Illingworth, F. (author)
1951
3 pages
Article (Journal)
English
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