Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 3, 2017
Patent Application Number
14126022
Date Filed
June 14, 2012
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for preparing a charging plan for rock cavern excavation, in which plan drill hole locations for a round to be drilled in a tunnel face are determined in a predetermined coordinate system by using a 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 and the topography of the rock remaining after a round blast, and designs or modifies a charging plan for a subsequent round on the basis of the thus determined pull-out.
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