BORING APPARATUS WITH LINEAR MULTI-AXIS CORE-DRILL AND METHOD FOR SECURING FREE SURFACE FOR TUNNEL EXCAVATION USING SAME

摘要

According to the present invention, a boring apparatus with a linear multi-axis core-drill comprises: a core drill provided with a cylindrical cylinder of which an internal side is empty and a crown that is a circular cutting blade in one end of the cylinder; a housing in which a plurality of core drills are arranged to be parallel with each other, and each crown is arranged on an imaginary straight line formed in the same flat surface for the crown to protrude; a driving unit generating a driving force for each core drill to rotate about a rotating shaft connecting central portions of each cylinder; and a transfer unit in which a plurality of core drills are provided to protrude to the front of the housing. Moreover, a method for securing a free surface for tunnel excavation using the boring apparatus is disclosed.;COPYRIGHT KIPO 2019