三山岛金矿“三下”开采工艺优化与灾害防治
王善飞,王康,马凤山,卢蓉

Optimization of Three-underground Mining Technology and Disaster Prevention in Sanshandao Gold Mine
Shanfei WANG,Kang WANG,Fengshan MA,Rong LU
图2 三山岛金矿浅部采矿模型和点柱采矿示意图
Fig.2 Shallow mining model and sketch map of point pillar mining in Sanshandao gold mine