2) grizzly blasting
溜井爆破
3) shaft destruction
井筒破坏
1.
Fuzzy cluster analysis and evaluation on coal mine shaft destruction;
煤矿井筒破坏的模糊聚类分析与评价
4) 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。
5) Tunnel destruction
井巷破坏
6) breakage of inclined shaft
斜井破坏
补充资料：溜井掘进
见天井掘进。
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