1) inner coal wall
内帮
1.
The result indicates that 1) dynamic vibration can not only cause the surrounding coal mass to be broken,making the lateral restraining force decreased,but also induce high stress in coal mass,and 2) the max vertical and horizontal stress of the inner coal wall under a roof pressure increases rapidly,making the rock burst easy to take place.
采用有限差分软件FLAC2D模拟程序中动态模块,研究分析了挠动波在不同加载水平、挠动波强度以及频率影响下,从巷道一侧上方传入时内、外帮围岩的应力和塑性区动态响应变化情况,对开采工作面巷道内帮易发生冲击的现象进行了分析和解释。
3) context help
内容帮助
4) inner dumping covering height
压帮内排
5) engine works
内燃机工帮
补充资料：排山压卵
1.喻弱方不堪强方一击。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条