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Boring machine dismantled after completing Doha Metro tunnel section
With tunneling on the Doha Metro roughly 60 percent complete, some of the massive boring machines that have spent months underground are starting to surface.
Residents recently caught a glimpse one of the country’s 21 tunnel boring machines (TBM) at Qatar Rail’s Al Messila site, which is both a station location and logistics center located off Jassim bin Hamad Street near Al Rayyan Road.
Known as TBM S-846, or Al Rayyan TBM, the machine dug out more than four kilometers of the Doha Metro Green Line before achieving its final “breakthrough” at Msheireb central station, Qatar Rail said in a statement. The German-made machine is now being dismantled.