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以福城煤矿受强烈采动影响的1903N和1902S回风巷掘进为背景,通过理论分析和现场矿压实测等方法,得出福城煤矿上区段运输巷顶部存在悬顶,并且会对下区段回风巷掘进产生动压影响。提出了沿空掘巷巷旁切顶卸压技术解决福城煤矿强烈采动影响下沿空掘巷支护困难问题,阐述了在1901S运输巷实施切顶卸压爆破后的应用效果,并指出推进中工作面侧方掘巷次序对巷道变形量的影响。
Taking the 1903N and 1902S air return tunnels driven by strong mining in Fucheng Coal Mine as the background, through theoretical analysis and field pressure measurement, it is concluded that there is a suspended roof at the top of the transport tunnel in the upper section of Fucheng Coal Mine, Air return tunnel driving pressure generated impact. The problem of supporting along gob-side entry under the influence of intense mining in Fucheng Mine is solved by the roof top pressure relief technology beside gob-side entry. The application effect of top-cutaneous pressure relief blasting in 1901S transportation lane is expounded. Influence of roadheading sequence on roadway deformation in side working face of middle.