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鞍钢弓长岭选矿厂在尾矿坝体上应用自流排渗新工艺,取得了消除坝体隐患,降低坝体浸润线,保证坝体安全的好效果。鞍钢弓长岭选矿厂尾矿库始建于1959年,坝高63.5米,长900米,为“不渗水均质土坝”。近几年来,坝体浸润线逐年升高,坝面渗漏严重,坝体时有坍塌的危险。1986年11月,弓长岭选矿厂把鞍山黑色冶金矿山设计研究院国内首创的自流排渗新工艺应用于尾矿坝。这种新工艺是,从坝体上向下钻垂直竖井,从坝面对准竖井顶进管道,使坝体的渗水通过排渗竖井周边下的滤层,渗入带条孔的竖井滤水段内,再流入与排渗竖井底部相联接的、并
At Anshan Iron & Steel Gongchangling Concentrator, a new technology of gravity drainage was applied to the tailings dam, and good effects of eliminating the hidden danger of the dam, reducing the saturation line of the dam and ensuring the safety of the dam were obtained. Anshan Iron and Steel Gongchangling tailing plant was built in 1959, the dam height of 63.5 meters, 900 meters long, “impermeable homogeneous soil dam.” In recent years, dam infiltration line increased year by year, the dam surface seepage, dam collapse danger. November 1986, Gongchangling Concentrator Anshan black Metallurgical Mining Design and Research Institute of China’s first self-flow drainage technology applied to the tailings dam. The new technology is that the vertical shaft is drilled down from the dam body and the pipe jacking pipe is aligned with the vertical shaft so that the seepage of the dam body can penetrate through the filter layer under the perimeter of the shaft and penetrate into the shaft drain section Within, and then inflow and drainage wells connected to the bottom, and