Doha Underground – Gold Line | Qatar

Excavation diameter

6.83 m

Tunnel length

5,400 m



Type of support

Prefabricated segments

Completed in




The Gold Line tunnels of the new Doha underground were completed in two years from the start of work.

The execution of the main section of the Gold Line in Doha in record time was accompanied by a quality of execution superior to that of the most qualified competitors.

In this work, innovative real-time geoelectric survey technologies were implemented for the formations to be excavated in front of the TBM.

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