The practice of recovering ore pillar of gentle dip and narrow vein;

In consideration of the technological mining conditions of the gently inclined and very thin ore vein of Jingshan Gold Mine,blasting parameters were optimized by the orthogonal test.

Through an exploratory survey of residual deposit in the sourthern zone of a copper ore mine,inclined thin veins with difficult occurrence and complicated mining conditions were discovered.

A talk about the orientation of the development of mining gentle dip and extra-narrow orebody by resuing-and-backfilling method;