BORING POSITIONING CONTROL METHOD IN ROCK DRILL MOUNTED CARRIAGE

PROBLEM TO BE SOLVED: To improve working efficiency and positioning precision without interfering with boring work even when a collimation target cannot be collimated concerning boring positioning control. SOLUTION: A boring positioning control method comprises successively moving a bit 13a of a rock drill 13 from the order of moving in accordance with a boring pattern planned previously in a state that a coordinate of a drill jumbo 1 and an attitude state are known at each plan boring point i on the basis of operation coordinate data for boring positioning set on a controller 2 before boring or during boring interruption, surveying the collimation target 8 provided on a guide shell 12 in a state that it is stopped on each plan boring point i by surveying equipment 4, acquiring a bit position of the rock drill 13 as a surveying coordinate on the basis of the survey, comparing an operation coordinate of each plan boring point by the operation coordinate data for the boring positioning with each survey coordinate surveyed really, setting a difference as composite errors at each plan boring point i, and making the composite errors a correction amount of the operation coordinate. COPYRIGHT: (C)2005,JPO&NCIPI