METHOD FOR FORMATION OF BOREHOLE HOLLOW CHARGE FOR BLAST DESTRUCTION OF ROCKS

摘要

A method for formation of borehole hollow charge for blast destruction of rocks includes lowering to well along axis of charge inserts. At the end of rope one fixes load, along rope one places inserts as balls, and between those centering inserts are placed as cut cones. The method makes it possible to develop powerful initiation pulse that increases stability of detonation along charge column.