顶煤弹性深梁力学模型及其应用

MECHANICAL MODEL FOR THE ELASTIC THICK OUTRIGGER OF ROOF COAL AND ITS APPLICATION

建立了顶煤弹性深梁力学模型，分析了顶煤应力分布及顶煤破坏形式。由此，探讨了确定合理顶煤厚度的方法和架前冒顶的机理。

Mechanical model for the elastic thick outrigger of roof coal is set up. The stress distribution in roof coal is shown and the mechanisms of roof coal breaking are analyzed. Further, the method to determine reasonable thickness of roof coal is discussed and the mechanism of rooffall in head face is analyzed as well.