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为解决大宝山矿668-1采空区给生产带来的安全隐患,在对该采空区的基本特征、地质条件、顶板保安层稳定性等情况进行调研的基础上,选择强制崩落方案进行处理。经现场实测,该次采空区处理达到了预期的效果:采空区除边缘部分外基本都已坍塌;未影响到附近的平硐及选矿厂等地表工业建筑的正常运行;采用爆破处理经济效益显著,处理周期短。
In order to solve the potential safety hazard brought by the 668-1 goaf in Dabaoshan Mine, based on the investigation of the basic characteristics of the goaf, geological conditions, the stability of the roof security layer and so on, the forced collapse program was chosen deal with. The field survey shows that the goaf treatment has achieved the expected results: the gob area basically collapsed except for the edge part; the normal operation of nearby industrial buildings such as adit and mineral processing plants was not affected; and the blasting economy Significant benefits, short processing cycle.