【摘要】 矿柱的安全回采及采空区的处理直接关系到矿山的可持续发展与人员的安全,以内蒙古兴业集团锡林浩特朝不楞矿区铁锌多金属矿山地质为依据,采用超声波测试技术,以岩体爆破损伤理论为基础,系统研究了多次爆破作用下井下分段回采巷道围岩损伤累计增长规律,并对围岩爆破累计损伤和残留矿体矿柱回采及采空区稳定性进行了研究。更多还原

【Abstract】 The safety mining technology of pillar and the goaf treatment directly was related to the mine sustainable development and the staff safety.According to engineering geology of iron and zinc and other metal mining in the Xilinhaote of Inner Mongalia,combined with ultrasonic testing technology and rock blasting damage theory,the cumulative growth rule of mining surrounding rock under repeated blasting loading was systematically studied,and the stability of the mine goaf and remnant pillar was also explored.更多还原