APPLICATION OF LATERAL PIN-POINT BLASTING MINING TECHNIQUE IN THE SUBLEVEL OPEN-STOPES

摘要

This paper proposes recovery is improved by adopting lateral pin-point blasting when shallow slope room is mined by means of sublevel open-stopes. The fact that small slant angle mine of shallow slope bottom wall is slung to road of accumulate ore along top wall is explained through theory research and technique design, which is verified by numerical simulation based on practice blasting parameters and room size.