Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Several boring machines were used on 5000 ft long water diversion project in New Mexico; sections of tunnel which were machine bored were bored full-face in single continuous operation; cutterhead on machine had 27 alloy-steel rock bits and three hydraulic reamers and was rotated at 14 rpm; eight hydraulic pads anchored machine.
Several boring machines were used on 5000 ft long water diversion project in New Mexico; sections of tunnel which were machine bored were bored full-face in single continuous operation; cutterhead on machine had 27 alloy-steel rock bits and three hydraulic reamers and was rotated at 14 rpm; eight hydraulic pads anchored machine.
Tunneling in sandstone
Min Congress J
Otter, J.V. (Autor:in)
1965
2 pages
Aufsatz (Zeitschrift)
Englisch
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