急倾斜特厚煤层综放工作面超段高初次放顶的实践

Practice of first roof caving technology at comprehensive mechanical mining face in steep thick coal seam

介绍了采区概况及初次放顶的方案选择 ,并详细说明了实施放顶的步骤及放顶过程中相关措施 ,实际应用中效果良好。

The survey of mining area and plan selection for first roof caving are introduced, and the step and corrective measures of roof caving are also explained in detail.The actual use is good.