采煤工作面初次放顶的技术管理

Technical management of preliminary roof caving at face

论述了初次放顶的全过程 ,系统地总结了初次放顶期间的技术管理工作和顶板观测在指导初次放顶工作中的意义。

This article describes the whole process of prelimary roof caving and systematically summarizes the significance of the technical management and roof observation during the first roof caving.