Tunneling machines - shield machines , thrust boring machines , auger boring machines , lining erection equipment - safety requirements ; german version en 12336 : 2005 隧道掘进机.盾构机止推钻孔机螺旋钻探机衬里安
Roadheader is a part profile tunnel boring machine which can excavate , convey rock blocks and walk by itself . it is very suitable to excavate soft - rock tunnel 臂式掘进机是一种集开挖、装碴和自动行走于一体的部分断面隧道掘进机,它非常适用于软岩隧道的掘进。
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。