薄煤层不稳定顶板灾变控制与炮采增效技术研究

Unstable Thin Coal Seam Roof Disaster Control and Guns Taken Synergistic Technology Research

针对薄煤层、复杂不稳定顶板条件下,炮采落煤导致机道顶板失稳、随采随冒,造成混矸率高等技术难题,结合现场实际条件,分析不稳定顶板条件下炮采工作面灾变原因。采用聚能爆破机理,提出不稳定顶板灾变控制和炮采增效技术,并通过现场工业试验进行聚能爆破工艺参数优化,实现灾变控制和炮采增效技术目标,获得较好的经济技术效果。

For thin coal seam under complex unstable roof conditions,cause the machine gun off the coal mining road roof instability,with the mining with risk,resulting in mixed refuse rate problems,combined with the actual site condition analysis unstable roof conditions blasting mining face catastrophe causes. Using shaped blasting mechanism proposed unstable roof blasting mining disaster control and efficiency technology,and optimization of process parameters Shaped blasting through the field of industrial test,to achieve catastrophe control and efficiency of blasting mining technology goals,to obtain better economic and technical effects.