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以鹤岗矿区富力煤矿62184工作面为背景,开展了坚硬顶板多煤层开采动力灾害(矿震和矿震诱发的冲击地压)治理技术研究。根据已发生的多次冲击显现分析了坚硬顶板多层煤开采条件下冲击地压发生原因。根据微地震监测数据确定了对工作面冲击危险产生主要影响的坚硬岩层。提出从降低静载荷、削弱动载荷、增强抗冲能力、完善冲击危险性监测预警4个方面开展针对性的冲击地压综合治理工作,以此为依据制定的冲击地压防治措施在现场施工后起到良好效果。
Based on the 62184 working face of Fuli Coal Mine in Hegang Mining Area, this paper studies the treatment technology of dynamic disasters (rock burst induced by mine and earthquake) induced by hard roof and multi-seam mining. Based on the occurrence of multiple impacts, the causes of rock burst under multi-layer coal mining with hard roof are analyzed. Based on microseismic monitoring data, hard rock formations that have a major impact on the impact hazard on the face are identified. The paper puts forward some measures to reduce the static load, weaken the dynamic load, enhance the impact resistance, and improve the comprehensive monitoring and early warning of impact risk. It is based on this that the impact prevention and pressure prevention measures developed after on-site construction Have a good effect.