tunnel drivage隧道掘进;隧洞掘进
slice drivage分层掘进
intermediate drivage中间共巷道掘进
drivage rate掘进率
eedy drivage快速掘进
comprehensive drivage综掘
drivage face[矿业] 掘进工作面
drivage stage成巷期
drivage e巷道掘进
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。
参考来源 - 光面爆破技术在不稳固岩体掘进中的研究和应用