Figure 11.
The image shows a large, mechanical structure with chains and equipment inside a dark, possibly underground environment, surrounded by wet concrete and dirt.The image depicts a large mechanical apparatus, situated in a dark setting which could be an underground tunnel or construction area. The structure includes thick metal beams and joints, with chains attached to various mechanisms. Portions of the equipment are covered in wet concrete and dirt, indicating recent work onsite. The background has a curved metallic surface, adding depth to the industrial scene. The composition suggests an active construction or maintenance operation related to tunnelling or heavy machinery.

Steel casing of the historical well, as encountered in the TBM cutterhead during inspection

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