从矿山开采出来的矿石,经过选冶提取出有用物质以后,余下的有些回填坑道采场,有些做砖铺路或他用,而绝大部分长年累月堆放在矿区,形成一片片污浊的尾矿坝(库)。不仅占据大片土地,而且对生态环境造成严重污染和破坏,甚至造成安全事故。然而,科技进步和大量的经验、教训深刻地启 After ore is mined from the mines, some of the remaining backfill tunnel stopes have been extracted through the process of metallurgy and metallurgy. Some of them are used for brick paving or other uses, while the vast majority of them are piled up in mining areas for many years to form a filthy tailing dam Library). Not only occupy a large area of ​​land, but also caused serious pollution and destruction of the ecological environment, and even caused a safety accident. However, technological progress and a great deal of experience and lessons have been profoundly explored