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Green Line, Metro Doha

Photo: Green Line, Metro Doha: Longitudinal view of a deep construction pit with complex construction site equipment; several mobile concrete pumps stretching their long arms onto the pit’s floor at the pit’s edge
Facts and Figures
Company PORR Bau GmbH and PORR Qatar Construction WLL in a consortium
PrincipalQatar Railways Company
LocationDoha - Qatar
Type Tunneling
Runtime09.2013 - 06.2018

A milestone for Doha

Overall, 33.5km of tunnel with a diameter of 7.1m are drilled for the purpose and fitted with reinforced concrete segments that are produced in-house. Underground stations and other buildings make up 2.8km of the overall length. Some 30 crossings are built for this purpose. Tunnel boring could already be completed. Six tunnel boring machines were thereby simultaneously used on the construction site. The route runs above ground for 3.2km, 2.7km of which over a bridge made from pre-manufactured parts. Complex noise protection measures have been designed for this section.