PDF(1476 KB)
Sub-level Stoping of Dahongshan Copper Mine and Maintaining the Stability of Stope Roof with Post Pillar
Sun Hongsheng
Chinese Journal of Underground Space and Engineering ›› 2016, Vol. 12 ›› Issue (2) : 516-521.
PDF(1476 KB)
PDF(1476 KB)
Sub-level Stoping of Dahongshan Copper Mine and Maintaining the Stability of Stope Roof with Post Pillar
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