放顶煤工作面滑移顶梁支架失稳分析

ANALYSIS OF DESTABLE OF THE SLIDING ROOF BEAM SUPPOIT IN ROOF CAVING WORKFACE

建立了滑移顶梁支架的稳定性指标和失稳条件。得出结论：滑移顶梁支架结构、放顶煤工作面围岩和工艺特点是引起放顶煤工作面滑移顶梁支架失稳的三个主要原因。认为在放顶煤工作面，不仅滑移顶梁支架会失稳，其它类似支架也可能发生失稳。

The stability target and the destable condition of the sliding roof beam support are set up. The conclusion is that the structure of the sliding roof beam support, the characteristics of the surrounding rock and technology in roof caving workface are three major reasons leading to the destable of the support. The destable of other similar support as wellas the sliding roof beam sapport, may be taken place in roof caving workface.