MECHANISED TUNNELLING | BTS HARDING PRIZE COMPETITION 2025


Right: Bridge beams


record-breaking EFC pour for the base slab at the Below:


TBM entry into shaft and then after transition the exit through the opposite portal to continue its drive


Hurst shaft, marking a major milestone in the use of low-carbon materials in tunnelling. Resolving these challenges highlighted the importance


of proactive monitoring, clear communication, and adaptive strategies in TBM operations. My involvement in relaying instructions, ensuring precise TBM adjustments, and identifying hazards during breakthrough reinforced


the value of hands-on site presence in overcoming tunnelling challenges.


CONCLUSION The London Power Tunnels Phase 2 - Package 2 came with its fair share of challenges, especially during the TBM transition through the Kidbrooke intermediate shaft. Key maintenance tasks, like cutterhead tool


16 | July 2025


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