after reading this and looking back, I now see that my comment above was not fair. My unreserved apologies to gulermak engineers and everybody else who had read my comment.
Tim, You hint here the contractor Gulermak did not read the book. What is...rst in the whole world to produce such segments. Sure something did wrong but t...crack-established-turkiye-metro-tunnel-segments-crack-segments-use-fiber-reinforced-polymer-and-macro-synthetic-fiber...
...ccedil;in Bakaert-Maccaferri fiberlerini mi kullandı o kırılan segmentlerde? Kesin olan, fiber satıc...mi?
Bu olayı öyle fiber ü...ert-Maccaferri for crack segments in İzmir Narlıdere metro tunnel? I...ignment stacking". Segments always stack that way. Why iron seg...
This explains what happened at Genoa's Bertè tunnel
Italy's Tunnels violate the European Union Directive 2004/54 for Safety of Tunnels
https://tunnelcontact.com/discussion/view/10093/italys-tunnels-violate-the-european-union-directive-200454-for-safety-of-tunnels
I think the title can be deceiving. The tunnel system Albarradón de Ecatepec was built by the European invaders, but the paintings found in the tunnels were painted by natives worked in the construction of the tunnels.
"London Underground seeks ideas to remove heat from its tunnels"
https://www.ianvisits.co.uk/blog/2020/05/27/london-underground-seeks-ideas-to-remove-heat-from-its-tunnels/
if you read the linked article, it says an Iranian company called Kayson builds tunnels at far places like Venezuela, Belarus, Cameroon, India. Can this be true?
This is nonsense. Italian companies do a lot of great work in Italy and abroad. But if the corrupt government does not want to spend money for the maintenance of the tunnels or assigns too little money, then you get what you pay for.