信宜银岩锡矿采空区处理实践

Treatment Practice of Mined-out Area in Xinyi Yinyan Tin Mine

信宜市银岩锡矿因前期大量的无序开采,形成了大面积不规则采空区,严重威胁着矿山投产后的生产安全。通过对采空区的调查研究,采用一定的工程手段,掌握了采空区的分布范围和空间形态,并提出采空区处理方法。以+1 060 m中段的采空区处理为实例,介绍了中深孔与浅孔联合爆破充填采空区的处理方法,并予以总结分析。

Due to the disorder exploration of Xinyi Yinyan Tin mine in early stage,huge irregular mined-out areas were formed which badly threatened the production safety of the mine.Through investigation on the mined-out areas,its distribution and spatial pattern were grasped by a certain technical measure,and the treatment measures for these mined-out areas were proposed.Taking ＋1 060 m sublevel of mined-out areas as a case,a filling method with joint blasting of middle-depth and shallow holes was introduced,and the related experiences were summarized and analyzed.