紫金山露采铜矿空区处理数字化建模应用

Application of the Goaf Digital Modeling in Zijinshan Open Pit Copper Mine

原地采采空区严重影响“地采转露采”后的资源储量动态管理工作,为了从源头上解决此瓶颈问题,在紫金山露采铜矿资源模型以及空区测量的基础上,结合紫金山原地采460~570 m中段空区处理技术方案,通过Surpac三维数字矿山软件地质建模,对空区充填后的矿石、废石和矿柱“混合体”进行品位模拟,建立空区充填后的资源模型,源头上解决资源储量动态管理过程中难以测算充填顶柱资源消耗的情况,实现资源储量精细化动态管理,同时为采剥计划提供可靠的资源依据。

The Mined-out area affects the dynamic management of resources and reserves after the"in-situ mining-to-outcrop".In order to solve this bottleneck problem from the source,on the basis of Zijinshan Open Stope Copper Mine resource model and goaf survey,the author combined with the goaf treatment technology scheme of the middle section 460~570 m of Zijinshan in-situ mining,through the Surpac 3D digital mine software geological modeling,the level simulation of the ore,waste rock and pillar"mixture"after goaf filling is carried out,the resource model after goaf filling is established,and the dynamic management process of resource reserves is solved at the source It is difficult to measure the resource consumption of filling roof pillar,realize the dynamic management of resource reserve refinement,and provide reliable resource basis for mining and stripping plan.