Tunnel excavation equipment

• Common Problems in Tunnel Boring Machines and How to Solve Them

  Nov 25, 2025

    You may have trouble with ground instability, water getting in, and equipment wearing out when you use a Tunnel Boring Machine. You can fix these problems by using strong supports, moving water with pumps, and planning regular checks. NHI says you should look at cutters and bearings often so they do not break. Tip: Acting fast and checking often helps your TBM work safely and well.     Ground Instability Challenges   Ground instability can slow down your Tunnel Boring Machine. It can also make your project unsafe. You should know what causes these problems. This helps keep your tunnel safe and your work on time. The table below lists common reasons for ground instability in tunnels: Cause of Instability Description Fault Zones These are pl...

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