TUNNEL EXCAVATING METHOD AND TUNNEL EXCAVATOR FOR CARRYING OUT SAID METHOD

PURPOSE: To eliminate high costs for tunnel boring in a discontinuity structure, in rock mass containing hindering hard rocks emerging at the excavation site. CONSTITUTION: There is provided a method for boring a tunnel in a discontinuity structure in rock mass containing hindering hard rocks, in wh...

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Bibliographische Detailangaben
Hauptverfasser:	ERUNSUTO RIRU, FURIIDORIHI BUIRUHERUMU PAURAATO, ROORANTO PAURAATO
Format:	Patent
Sprache:	eng
Schlagworte:	AMMUNITION BLASTING EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES HEATING LARGE UNDERGROUND CHAMBERS LIGHTING MECHANICAL ENGINEERING MINING MINING OR QUARRYING SHAFTS TUNNELS WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: To eliminate high costs for tunnel boring in a discontinuity structure, in rock mass containing hindering hard rocks emerging at the excavation site. CONSTITUTION: There is provided a method for boring a tunnel in a discontinuity structure in rock mass containing hindering hard rocks, in which a self- advancing tunnel boring machine equipped with a rock carrier 4 is used, whereby tunnel boring is carried out by rock mass excavation at the site of a tunnel to be bored. The tunnel boring machine is equipped with at least one drilling gun arm rack 7 for mounting a drilling gun 8 thereon. When the obstacle hard rocks emerge at the excavation site, orientation of the drilling gun arm rack to the hindering hard rocks, and crushing of the hindering hard rocks by operation of the drilling gun are performed in combination, and an interval between the hindering hard rocks and the drilling gun at the operation of the drilling gun (at the explosion), and the drilling gun operation are adjusted, such that crushed rocks are carried by the rock carrier of the tunnel boring machine.