METHOD OF QUARRYING DIMENSIONAL STONE, AND LINE DRILLING APPARATUS

A method of quarrying dimensional stone and a line drilling apparatus used therein. The drilling apparatus is frameless and comprises a first boom and a second boom, between which is arranged a joint mechanism, allowing the booms to be moved relative to each other. Furthermore, in connection with th...

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Bibliographische Detailangaben
1. Verfasser:	LAHDELMA, ILKKA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING MINING OR QUARRYING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	A method of quarrying dimensional stone and a line drilling apparatus used therein. The drilling apparatus is frameless and comprises a first boom and a second boom, between which is arranged a joint mechanism, allowing the booms to be moved relative to each other. Furthermore, in connection with the joint mechanism is arranged a stone support adaptable against the stone once the drilling apparatus is coarse-positioned in the vicinity of a drill hole line. Fine positioning of the drilling apparatus in the direction of the drill hole line is performed by joints comprised by the joint mechanism. Positioning at drill holes takes place by turning the second boom along an arched motion path and by turning the drilling unit towards the stone to be drilled.