1) general activities law overburden
上覆岩层活动规律
3) overburden rock activity law
覆岩活动规律
4) overburden moving law
覆岩运动规律
1.
The overburden moving law was analyzed at the end mining of working face, have suggested that three kinds of roof structure in the area of equipment removing when working face stopped mining, this indicate that the main roof broken behind the terminal line when working face cut through the dismantling tunnel, at this time, the roof is in the relatively stable st
本文综合运用理论研究、数值模拟和现场实测的方法,对工作面末采期覆岩运动规律进行了分析,提出了工作面停采时回撤区可能存在的三种顶板结构,现场实测表明,工作面贯通回撤通道时,老顶岩梁在停采线后方断裂,此时,顶板处于相对稳定阶段,巷道顶板承受上覆岩层静载荷作用。
补充资料：上覆
1.禀报;奉告。 2.指屋面。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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