Turkey | Türkei

Final TBM Breakthrough at Bahçe–Nurdağı Railway

In June 2023, a 8.0 m diameter Robbins Single Shield TBM completed its second tunnel at Turkey’s Bahçe-­Nurdağı Railway. The machine completed 9.6 km of tunneling, adding on to the 9.2 km it completed in its initial railway tunnel in 2020 – for a total of more than 18 km bored.

Geology in the second tunnel was comparable to the first, including incredibly hard and abrasive metasandstone with quartz, with an average of 220 MPa UCS and a Cerchar abrasion value of 3.87. The rock has some of the most extreme hardness and abrasiveness ever measured in Turkey.

After its first bore in the difficult...

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Ressort:  Nachrichten | News
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