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基于激光三维扫描技术构建空区三维实体模型,运用理论分析和数值模拟的方法对空区上覆岩层的稳定性进行分析;采用声发射技术对空区上覆岩层进行跟踪监测,形成空区上覆岩层安全性的评价体系。同时,提出了运用垂直深孔爆破消空处理和一次成井及深孔爆破消空一体化处理两种空区处理方案,将两种方案进行对比分析后发现,垂直深孔爆破消空处理方案炸药单耗和总装药量较大,但其爆破网络结构简单,现场作业量小。而一次成井及深孔爆破消空一体化处理方案炸药单耗和总装药量小,但对钻孔精度、装药及爆破网络连接等都有较高的要求,现场作业量大。
Based on the laser three-dimensional scanning technology to build a three-dimensional space model, using theoretical analysis and numerical simulation method to analyze the stability of the overlying strata in the open area; using acoustic emission technology to track the overlying strata in the open area, Evaluation system of overburden safety. At the same time, the paper proposed the application of vertical deep-hole blasting, emptying treatment and one-shot welling and deep-hole blasting to eliminate two empty areas. The two schemes were compared and analyzed. It was found that the vertical deep- Consumption and the total amount of large load, but the burst network structure is simple, small amount of field work. However, once integrated well drilling and deep-hole blasting eliminate emptying unit processing program explosive unit consumption and the total charge is small, but the drilling accuracy, charge and blasting network connections have higher requirements, on-site workload.