| 摘要 |
The invention relates to a method and an arrangement for designing a drilling plan (12) for rock cavern excavation. The method defines in advance for a round (26) to be drilled in a tunnel face at least the locations of drill holes (13) in a predetermined coordinate system, using the drilling plan created by means of a computer-assisted design program. The method determines pull-out of a round on the basis of the locations of the hole ends (36) and the topography (28) of the rock remaining after a round blast, and designs or modifies the drilling plan for a subsequent round on the basis of the thus determined pull-out. |
