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利用材料力学等相关理论,结合龙煤集团新铁煤矿某工作面的实际煤岩赋存条件,根据急倾斜煤层赋存的非对称性以及工作面下部冒落矸石的充填特征,将上覆岩层作用载荷和充填矸石支撑力进行简化,建立了急倾斜工作面顶板弯曲变形力学模型,给出了急倾斜工作面顶板的挠曲线方程,分析了不同煤层采高、不同工作面长度条件下顶板最大挠度点位置的变化关系。
According to the related theories of material mechanics and the actual coal and rock occurrence conditions of certain working face of Xintiang Coal Mine of Longmeng Group, according to the asymmetry of the occurrence of steep coal seam and the filling characteristics of gangue discharged from the lower part of working face, The load acting on the coal gangue and the supporting force of filled gangue are simplified. The bending deformation mechanics model of the roof is established, and the deflection curve of the roof of the steep working face is given. The maximum of the roof under different mining face lengths and different working face lengths Deflection point of the relationship between the changes.