DIGGING A SECRET TUNNEL Part 2

A video on YouTube. In Maker & Builds, a Krater category.

Summary by Krater

Colin Furze continues his underground tunnel project by digging out the third to seventh sections beneath his shed, hitting the limestone seam and building a hydraulic ram system to push through stubborn rock, concluding with the framing of the shaft in April 2021 after a year and three months of work.

From the video

Answers: How do you dig an underground tunnel and install a hydraulic ram system?

Underground tunnel construction
Manual digging and muck removal
Hydraulic ram and wedge tool fabrication
Welding and metal fabrication
Shaft framing and mesh installation

What it concludes

Using a hydraulic ram and wedge tool helps push through stubborn limestone and rock when manual digging is no longer effective.
Installing frame support around the walls prevents collapses and ensures vertical and horizontal alignment in the tunnel shaft.
The tunnel shaft digging project reached completion down to maximum depth by April 2021, one year and three months after it started.

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