Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experiences demonstrated that by overburden of 12 to 15 m in thickness and tunnel spans of 15 to 20 m, construction advantages could be obtained; cost data in Sweden; methods to produce more accurate blasting of rockroom contours, particularly roof.
Experiences demonstrated that by overburden of 12 to 15 m in thickness and tunnel spans of 15 to 20 m, construction advantages could be obtained; cost data in Sweden; methods to produce more accurate blasting of rockroom contours, particularly roof.
Underground room construction
Eng News-Rec
Bergman, G.A. (Autor:in)
Engineering News-Record ; 153
1954
3 pages
Aufsatz (Zeitschrift)
Englisch
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