关键词: 薄矿脉, 单出矿进路阶段矿房法, 阶段矿房法

Abstract: The multi-entry bench room mining method has been widely used in exploitation of main hangingwall ore-body in Shouyun Iron Mine.But for exploiting the marginal thin veins, it makes the main public roadway hardly be used, and results in huge caving and mining engineering at bottom and high mining costs as well since the public roadway is far away from the main ore-body.So the single-entry bench room mining is proposed.That is, only one single roadway along the bottom of the thin vein is arranged, which can be used both as undercutting roadway and ore-drawing roadway.This method can reduce the cutting engineering quantities.The actual application proved that the method is superior to any other room mining methods in cost and efficiency of mining.

Key words: Thin veins, Single-entry bench room mining, Bench room mining method