1) unstable terrane
不稳固岩层
1.
Based on analysis of a reconstruction project of parking lot at blind shaft,working scheme of laneway driving and supporting in unstable terrane is put forward.
通过对王村铝土矿在盲副井口车场改造施工实例分析,提出了在不稳固岩层的巷道掘进与支护施工方案,经试验表明:该方案能够满足施工需要,可以在同类矿山巷道施工中推广应用。
2) unstable ore-bearing rocks
不稳固矿岩
3) unstable rock mass
不稳固岩体
1.
During the development of tunnel drivage of many domestic gold mine such as Jiaojia Gold Mine in Shandong Province, encountered a lot of unstable rock mass, The rock mass is mainly disruption and alteration granite, Rock s structure growth and many crevasse surface, and rugged coefficient is f=4～5, It belongs to IV kide unstable wall rock.
在国内许多诸如山东省焦家金矿开拓巷道掘进中,遇到了大量不稳固岩体,岩体主要以碎裂蚀变花岗岩为主,结构发育,裂隙面多,坚固性系数f=4～5,属于Ⅳ类不稳固围岩。
4) Unstable strata
不稳定岩层
1.
Suspension arch method of drifting in unstable strata;
不稳定岩层中平巷掘进的悬拱法
5) weak-walled
围岩不稳固的
6) Rather unsteady strata
极不稳定岩层
补充资料：不稳
1.不安稳;不牢固。 2.不可靠。 3.不安定，动荡，动乱。
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