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Guided boring method
| Глоссарий по проходческим щитам (тоннелингу) |
Another term for the pilot tube method, in which an auger boring power unit is used with a pilot tube’s guidance and steering system.
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Cutter wheel, английский
Any rotating tool or system of tools on a common support that excavates at the face of a bore.
Rescue shaft, английский
An unplanned additional shaft required to remove obstacles/obstructions and/or retrieve or repair the mtbm. the rescue shaft may need to function as a jacking shaft to complete the drive.
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