1) failure of rib
煤壁破坏
2) shaft lining breakage
井壁破坏
1.
It can increase of bearing capacity of the stratum so that the longitudinal added force caused by stratum sedimentation will be decreased or even eliminated, shaft lining breakage can be avoided.
基于井壁竖向附加力的认识,从地层疏水压缩入手提出对地层进行预注浆加固,使井筒周围一定范围地层变为不可压缩地层,可提高其自身承载力,消除或减少地层下沉产生的竖直附加力,防止井壁破坏。
3) rock wall failure
石壁破坏
5) broken coal
破坏煤
1.
Microscopic forming mechanism of broken coal and its relation to gas outburst and coalbed methane recovery;
破坏煤形成的微观机理及其与瓦斯突出及煤层气开采的关系
2.
The effect of geological structure of Nantong Mining Area on the control of broken coal development of Nantong Mining Area has been discussed based on detailed study on laws of broken coal development.
在详细研究南桐矿区破坏煤发育规律的基础上，论述了矿区构造对破坏煤发育的控制。
3.
According to the number of practical data coming from drills and mines, the author puts forward classification of broken coal.
本文以陕西韩城矿区北区钻孔和井下大量的实际观测资料为依据，提出了破坏煤分类的方案。
6) coal or rock failure
煤(岩)破坏
补充资料：标准煤(见煤当量)
标准煤(见煤当量)
standard coal
、~‘~1人、4《1工兀飞coal)见煤当等
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