Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
2,230,000 cu yd of rock in heavy side-hill cuts were blasted without damage to abutting properties or interruption of traffic along parallel roadway; typical primary blast included 90 to 100 holes drilled, 4 3/4 in. in diam, 15 to 20 ft deep, spaced on 8×8-ft and 10×10-ft centers; excavation details.
2,230,000 cu yd of rock in heavy side-hill cuts were blasted without damage to abutting properties or interruption of traffic along parallel roadway; typical primary blast included 90 to 100 holes drilled, 4 3/4 in. in diam, 15 to 20 ft deep, spaced on 8×8-ft and 10×10-ft centers; excavation details.
Difficult highway job in Pennsylvania
Explosives Engr
Burkle, W.C. (Autor:in)
Explosives Engineer ; 34
1956
4 pages
Aufsatz (Zeitschrift)
Englisch
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