掘进循环
Excavation cycle
台阶掘进
Part face tunneling
双侧壁导坑法掘进
Two-Sidewall adit heading excavation
钻眼
Drilling
爆破
Blasting
通风
Ventilation
H-steel support
H型钢支护
Anchor shotcreting support
锚喷混凝土支护
排水
Drainage
管棚支护
Pipe support
Pipe support for entrance
入口处的管棚支护
Face support
掘进面支护
顶管施工
Jacking pipe
顶管施工
Jacking pipe
顶管施工
Jacking pipe