膏体充填在下向充填采矿法中的应用

The Application of Paste Filling on Downward Filling Mining Method

河床下开采面临涌水量大、地表保护等难题,加上矿体埋藏较深,深部开采还面临地压大等诸多问题;通过采用尾砂胶结充填可以有效阻止围岩的移动和限制围岩变形,使开采过程趋于安全,充分回收矿产资源,最大限度降低贫化损失率;同时对尾砂进行综合利用,缓解尾矿处理压力,坏境得到保护。

The extraction under the river bed is confronted with the big water inflow, surface protection and the other problems, as well as the ore bodies are buried deep, so the deep mining is confronted with many problems, such as big ground pressure; the cemented tailing filling is adopted to prevent the movement of the surrounding rock and limit the deformation of the surrounding rock effectively, so that the exploitation process is safer, the ore resources can be recovered sufficiently, the dilution and loss ratio can be decreased farthest; the comprehensive utilization shall be done for the tailings, so the environment can be protected.