1·Take an underground copper mine as studying object, on which the surface has to be protected, the mining method of sublevel filling method with roof reconstructing is studied.
以某地下铜矿为研究对象，研究了地表要求保护的前提下极破碎矿体的顶板再造上向分段充填采矿法。
2·The stoping scheme of sublevel caving and continuous mining was optimized, and optimization design of driving work was carried out.
优选出了分段凿岩连续崩矿回采方案，并对采切工程进行了优化设计。
3·The mining scheme and new technology of sublevel filling method cemented by crushed stone and cement slurry, and the production linking up technique to transit from caving method to filling meth...
研究应用了分段碎石胶结充填采矿方法较好地解决了这一问题，介绍该采矿方案和碎？。
4·Variable speed filling: Servo-driven, variable-speed filling process can achieve sublevel filling, to prevent liquid overflow bottle. 3.
变速灌装：采用伺服驱动，灌装过程可实现分段变速灌装，防止液体溢出瓶口。
5·Sublevel caving without sill pillar is used in Xishimen Iron Mine.
西石门铁矿采用无底柱分段崩落采矿法开采。