speedy drivage 快速掘进
drivage method 掘进法
drivage ratio [矿业] 掘进率
tunnel drivage 隧道掘进 ; 隧洞掘进
drivage efficiency 掘进效率
high speed drivage 高速掘进
Rock Drivage 岩巷掘进 ; 岩石平巷
shield drivage 盾构掘进
wide face drivage [矿业] 宽工作面掘进
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·2,447,543篇论文数据，部分数据来源于NoteExpress
The support with bolt and cable is a main way of roadway drivage.
锚杆锚索支护是巷道掘进的一种主要形式。
Finally, the examples of projects pointed out lessons learnt from roadway drivage in soft rock.
最后，通过工程实例说明在软岩巷道施工中所吸取的教训。
The sizes of cross-section are related to the drivage costs, maintenance costs and ventilation electric costs.
井巷断面大小直接关系到掘进费、维护费和通风电费。
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