Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Development and Testing of Explosive-Anchored Rockbolt
Explosive-anchored rockbolt developed by Bureau of Mines and tested in nine mines produces anchorage superior in holding power to anchors of wedge or expansion-shell types in medium hard or soft and spongy ground; it is equal to any rockbolt anchor presently being used in hard rock; tests obtained anchorages in excess of 17,000 lb in soft formations with bolt head movements averaging 0.013 in.; best charge was from 10 to 14 in. long, producing three beads. (See also Min Congress J v 50 n 6 June 1964 p 28-32)
Development and Testing of Explosive-Anchored Rockbolt
Explosive-anchored rockbolt developed by Bureau of Mines and tested in nine mines produces anchorage superior in holding power to anchors of wedge or expansion-shell types in medium hard or soft and spongy ground; it is equal to any rockbolt anchor presently being used in hard rock; tests obtained anchorages in excess of 17,000 lb in soft formations with bolt head movements averaging 0.013 in.; best charge was from 10 to 14 in. long, producing three beads. (See also Min Congress J v 50 n 6 June 1964 p 28-32)
Development and Testing of Explosive-Anchored Rockbolt
South African Min Eng J
Parsons, E.W. (Autor:in)
1964
Aufsatz (Zeitschrift)
Englisch
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Development and Testing of Explosive-Anchored Rockbolt
| Engineering Index Backfile | 1964
Field testing of explosive-anchored rockbolt
| Engineering Index Backfile | 1965
Field testing of the explosive anchored rockbolt
| TIBKAT | 1965
Suggested methods for rockbolt testing
| UB Braunschweig | 1974
Load relations in preloaded rockbolt testing
| TIBKAT | 1965