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industries charbonnière et minière - iate.europa.eu
La présente invention concerne un procédé de perforation au rocher à l'aide d'une perforatrice à percussion (2) à laquelle est relié un train de tiges de forage (18) comprenant des parties (31, 32, 33, 19) vissées les unes aux autres.

Method of rock drilling with a percussion rock drilling machine (2) to which a drill string (18) comprising parts (31, 32, 33, 19) screwed together is connected.

industries charbonnière et minière - wipo.int
Technology of rock destruction by combined explosion-mechanical load... Rock drilling is characterized by an energy capacity of more than 120 kWh/m3....
général - core.ac.uk - PDF: doaj.org
Superhard nanophase cutter materials for rock drilling applications... Microstructured and nanostructured cutters were sintered and studied for rock drilling applications....
A new method of combined rock drillingBased on the technologies of traditionally mechanical drilling and water jet, we propose a new method of abrasive water jet in combination with rock drilling, and establish a combined rock drilling system for the gas pre-drainage....
 PDF: doaj.org


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