Abstract:

This article describes the application of Short—hole shrinkage naeth0d in Jiawu1a lea nc deposit in detail．it  points out that the employnaent of Shallow hole drilling， Z-shaped pattern of laying blast holes， unc0upled charging and rnlcmsecon【1|】last IS capable of improving productivity and efficiency of 0re block， reducing mining c0st， and increasmg econ0m c profits m the mining of steep dip and narrow vein， of which the ore rock is m0derateiv stable． the deI11arcarion line between r。ck and。re is c1ear and the change。f dip ang1e is n。t s。great

Key words: Steeply’inclined thin orebody, Short&mdash, hole shrinkage method, Mining cutting, Stoping