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为减少传统沉陷计算方法对急倾斜煤层开采沉陷变形进行分析结果的失真,以具体的急倾斜多厚煤层开采为背景,建立了相似材料模型,分析了急倾斜煤层开采沉陷对应的地表移动和变形规律,覆岩的移动和变形规律.结果表明:在失去煤层支撑后,覆岩呈悬臂梁结构因重力持续增长而出现断裂,地表沉陷区相对较小但变形展现出严重的非连续性阶跃式
In order to reduce the distortion of traditional subsidence calculation method for the analysis of subsidence deformation of steeply inclined coal seam, a similar material model was established based on the specific mining of steeply inclined and thick coal seam, and the corresponding surface movement and deformation of mining steep subsidence was analyzed The law of overlying strata, and the law of overlying strata movement and deformation.The results show that after the coal seam is lost, the overburden cantilever structure is broken due to the continuous increase of gravity, the surface subsidence area is relatively small but the deformation shows a serious discontinuous step formula