3.7K views · 156 reactions | What a week looking back at TBM tunnelling! Let's flash forward to what's next for the TBMs ⏩ Hear from our tunnelling expert as they breakdown how the four tunnel boring machines are being dismantled and retrieved after their arrival at Town Hall Station. | Metro Tunnel | Facebook

472K views · 1.4K reactions | It's almost tunnel-time!  Our first...

The Polihali Tunnel Boring Machine (TBM) has successfully completed its reverse entry into the 1.484 km TBM access adit and is now positioned facing west towards Katse, where it will begin its main excavation drive in the first quarter of 2026. The team is currently assembling the TBM backup systems and the conveyor belt that will transport excavated material. This week, Mr. Koli Lekhotla, Assistant Resident Engineer at Metsi a Senqu Khubelu Consultants Joint Venture, breaks down how the TBM wil

“The Youth Moving Mountains” Episode 1: The Tunnelers—The Extraordinary Feats of Ordinary People Behind the Hardcore Engineering How to cross the Tianshan Mountains? For the first time using a giant tunnel boring machine and braving fractured zones, project manager Li Yalong and his team conquered the Tianshan Mountains with the “three bores plus four shafts” method. It was not just an engineering battle but also a heartfelt journey—their passion was the true force behind carving this miracle tu