逐巷充填开采覆岩移动破坏规律研究

Research on movement and failure laws of overlying strata in road-by-road filling mining

以榆林地区神木市部分典型窄条带膏体充填开采以及房柱式采煤遗留煤柱回收煤矿为研究背景,分析窄条带膏体充填开采过程中覆岩移动变形机理及其影响因素,研究各因素对覆岩移动和地表移动变形的影响。研究为“三下”压煤开采难题提供理论支持,而且对遗留煤柱回收具有重要的现实意义。

Taking part of the typical narrow-strip paste-filling mining in Shenmu City,Yulin area and the recovery of coal pillars left over from room and pillar coal mining as the research background,this paper analyzed the movement and deformation mechanism of overlying strata and its influencing factors during the narrow-strip paste-filling mining process.The influence of various factors on the movement of the overburden and the movement and deformation of the ground surface.The research provided theoretical support for the"three-under"compressed coal mining problem,and had important practical significance for the recovery of remaining coal pillars.