| 摘要 |
PURPOSE: A drilling machine to prepare excavations for tunnels is provided to achieve a high-productivity drilling machine, and to optimize working time. CONSTITUTION: The drilling machine(10), to prepare excavations for tunnels by making a plurality of holes and inserting mating treatment devices inside, comprises at least a drilling assembly(20) able to make the holes on the area to be drilled and two introduction assemblies(30a,30b) provided with independent movement devices and arranged on opposite sides of the drilling assembly, each of the introduction assemblies being able to operate on a defined portion of the area to be drilled.
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