Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experiments with roof bolting to prove adaptability of roof bolting, and to determine possible cost savings; geologic conditions difficult; it is concluded that bolting is effective where anchorage can be obtained in stratum that has not flexed to any extent; placing bolts before collaring of openings has reduced overbreak and timber requirements; fire hazards reduced; maintenance costs are lower.
Experiments with roof bolting to prove adaptability of roof bolting, and to determine possible cost savings; geologic conditions difficult; it is concluded that bolting is effective where anchorage can be obtained in stratum that has not flexed to any extent; placing bolts before collaring of openings has reduced overbreak and timber requirements; fire hazards reduced; maintenance costs are lower.
Roof bolting at United States and lark mine
Min Congress J
Boyd, B. (Autor:in)
1952
Aufsatz (Zeitschrift)
Englisch
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