地采矿山转露采的开采程式研究

Research of Exploitation Procedures of Open-pit Mines Transferred from Underground Mining

为了回收原地采矿山遗留的隐患资源,建立了完善的地采矿山转露天开采方法体系,指导地采矿山转露天开采的平稳转型。针对采场下方存在原地采留下的采空区,露天开采前对存在较大安全隐患的大型空区和空区群进行前期集中治理以实现宏观露天开采环境再造,开采中对影响施工安全的局部区域的小空区和盲空区进行综合探测分析和崩落爆破处理以实现微观采场作业条件再造。并总结了地下开采转露天开采矿山生产组织和现场管理的要点,为实现地下开采转露天开采矿山空区治理与露天开采施工协同作业奠定基础。

In order to recover the resources with potential danger leaved by underground mining, the complete mining method system for crisis mines transferred from underground to open pit mining, has been established to guide a smooth transi- tion from underground to open pit mining. In view of various underground mined-out areas under the stope, the large scale mined-out area and the mined-out area group are treated before open-pit mining to achieve the macro geological environment rebuilding for open-pit, and the small scale mined-out areas and the unknown mined-out areas that affect the engineering safety at local place are surveyed and disposed by caving blasting to achieve the reconstruction of micro condition for open-pit mining. The keys of production organization and field management for this type of mine are summarized. These are all helpful to lay a foundation for the cooperative operation of mined-ont areas disposing and open-pit mining.