浅孔留矿采场嗣后充填在正北沟矿的应用

Application of shallow hole shrinkage stope subsequent filling in zhengbeigou mine

正北沟矿区由于无规划的民采等原因,造成了回采顺序的颠倒。此外,随着该矿采用浅孔留矿法正常采矿生产的继续,存窿矿出空后形成了大量的采空区,致使地压显现,给上部中段的回采和安全生产带来了巨大影响。实践中采用干式充填法取得了较好的生产效益,同时有效控制了地质灾害的发生。此种充填方法具有施工量小、灵活机动、充填料低廉等优点。

Due to the non planned civilian mining in zhengbeigou mining area,the mining sequence is reversed.In addition,with the continued normal mining production of shallow hole shrinkage method in the mine,a large number of mined out areas are formed after the stope is mined out,resulting in ground pressure behavior,which has a great impact on the upper and middle mining and safety production.In practice,the dry filling method has achieved good production benefits and effectively controlled the occurrence of geological disasters.This filling method has the advantages of small amount of construction,flexibility and low cost.