A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Demolition of Ripple Rock
Hazards to shipping caused by Ripple Rock; early efforts to remove obstruction; decision to make underground approach; 2400 ft of 7 ft by 8 ft tunnel driven, sub-shafts in submerged peaks raised to within 40 ft of each summit; coyote workings, precautions, problems of layout, calculation of explosive loads, loading procedure, layout of primacord lines, stemming, detonation, and blast.
Demolition of Ripple Rock
Hazards to shipping caused by Ripple Rock; early efforts to remove obstruction; decision to make underground approach; 2400 ft of 7 ft by 8 ft tunnel driven, sub-shafts in submerged peaks raised to within 40 ft of each summit; coyote workings, precautions, problems of layout, calculation of explosive loads, loading procedure, layout of primacord lines, stemming, detonation, and blast.
Demolition of Ripple Rock
Can Min Met Bul
Dolmage, V. (author) / Mason, E.E. (author) / Stewart, J.W. (author)
1958
14 pages
Article (Journal)
English
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