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通过对急斜特厚煤层水平分段放顶煤开采煤岩移动规律研究,提出了开采过程顶煤和围岩破坏发展分区,即顶煤放出区、沿底座滑区、顶板离层破坏区和煤岩滞后垮落区。分析了影响沿底座滑区和顶板离层破坏区破坏的主要因素及其采动损害传递的主途径。
Through the research on the coal and rock movement rules in horizontal section caving coal mining in the steep and extremely thick coal seam, the disintegration and development of top coal and surrounding rock in the mining process are proposed, ie the top coal releasing zone, the base sliding zone and the roof delamination failure zone And coal rock lag area. The main factors which affect the failure of the sliding zone and the roof along the pedestal and the main path of mining damage transmission are analyzed.