| 摘要 |
<p>Drilling machine (10) to prepare excavations for tunnels by making a plurality of holes and inserting mating treatment means inside, said machine (10) comprising at least a drilling assembly (20) able to make said holes on the area to be drilled and two introduction assemblies (30a, 30b) provided with independent movement means and arranged on opposite sides of said drilling assembly (20), each of said introduction assemblies (30a, 30b) being able to operate on a defined portion of said area to be drilled. <IMAGE></p> |
