摘要
针对陈四楼矿二 2煤层顶板管理中存在的问题，从采场上覆岩层的力学性质入手分析了直接顶的稳定性，并对直接顶的上部边界及下部边界的特征进行了分析，进而对顶板冒落机理进行了探讨。
s － To counter the problem present in roof control of Ⅱ 2 coal seam in Chensilou Mine， the paper analyses the stability of immediate roof and the characteristics of its upper and lower boundaries according to the mechanical properties of overburden rock， and discusses roof caving mechanism.
出处
《矿业安全与环保》
北大核心
2000年第4期52-53,42,共3页
Mining Safety & Environmental Protection
