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Keywords: drill pipe selection
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Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-018
... a sudden release of strain energy in the pillar result.ing in rock burst and failure will be in brittle mode. In underground excavations, the stress state imposed on the supporting elements, pillars and sidewalls Health & Medicine Barre granite consumer health drill pipe selection Rock...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 21–24, 1981
Paper Number: ISRM-IS-1981-157
... pier foundation. Drilling Equipment cutter head tower foundation Upstream Oil & Gas mudstone drillstring design type underwater excavation machine excavation performance drill pipe selection Shaft Excavation Method boom type experiment drilling diameter diameter excavation...

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