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吴县铜矿2~#矿房沿用上向水平分层的碎石充填采矿法,已采出多金属富矿三万多吨。当矿房上采至-72米时,由于受西侧3～5~#矿房大冒顶的影响,相邻的2~#钢筋砼矿柱虽未被破坏,但顶部残留矿体的稳固性明显恶化,致使该矿房一度停产。为在确保安全前提下回采顶部残矿,我矿首次应用了金属锚杆、深孔锚索及局部金属网联合加固的技术,顺利地采出了千吨高品位原矿,取得
2 # ore mine in Wu County, along the horizontal stratified crushed stone mining method, has been taken more than 30,000 tons of polymetallic rich ore. When the ore mined up to -72 meters, due to the west side of 3 ~ 5 ~ # ore roof collapse, the adjacent 2 ~ # reinforced concrete pillars although not destroyed, but the stability of the top of the residual ore body Obvious deterioration, resulting in the mine was discontinued. In order to ensure the safety premise of mining the top of the residual mine, mine for the first time the application of the metal anchor, deep hole anchor and local metal mesh reinforcement technology, successfully extracted thousands of tons of high grade ore, obtained