At present, the level of mechanization and automation of tunnel boring machines (TBM) has been improved significantly, and TBMs can be designed to excavate tunnels with different shapes under different geological conditions.

• 摘要目前，隧道掘进机的机械化及自动化水平得到了很大提高，隧道掘进机可以开挖不同的地质条件下各种形状的隧道。