某露天采场下隐伏采空区处理技术

Treatment Techniques of Concealed Goaf under an Open-pit Stope

为有效治理露天采场下隐伏采空区,消除采空区隐患,并回收空区周边资源,结合采空区赋存情况,提出露天剥离法处理采空区,对采空区区块划分、治理顺序、治理境界及露天剥离工艺进行了详细介绍,同时,对穿孔爆破方案进行了重点研究。露天剥离法处理采空区,采治结合,成功应用于现场实践,取得了良好的社会、经济效益,为类似条件下隐伏采空区的安全治理及资源的回收利用提供了重要参考。

In order to treat the concealed goaf under an open-pit stope,avoid hidden hazards as well as recover resources,according to the occurrence situation of the mine,the open-pit stripping method is proposed to deal with the concealed goaf.The processes of goaf block subdivision,treatment sequence,treatment outline and open-pit stripping are analyzed in detail,besides that,the perforated blasting scheme is studied emphatically.The open-pit stripping method is successfully applied to treat the concealed goaf,the ideal social and economic benefits are obtained,which can provide some important reference for safety treatment of concealed goaf and resources recycling.