Somos FCC - Nº11

construction FCC completes work at the Doha Metro (Qatar) Qatar is a country with a conti- nuous population growth due to the increase in its wealth through the exploitation of its natural resources of oil and gas. This has required a rapid development of its infras- tructure, being the construction of a Metro system a crucial element in such strategic planning. The implementation of the Doha Metro, capital of the State of Qa- tar, specifically between the towns of Doha and Al Wakra, has been developed in several phases, the first phase being the one currently under construction. The project executed by FCC Construcción, called Red Line South Elevated & At Grade, con- sisted of the construction of a 6.9-kilometre viaduct. The infrastructure was built using the system of prefabricated seg- ments installed with Launching Gantry type launch shoring, with spans between 28 and 44 metres in length; 58 spans built with a mo- no-beam of post-stressed concre- te, some 28 metres in length, and 22 spans in situ. The piers of the viaduct are be- tween 6 and 10 metres high and have a variable square section. 80% of the foundations were direct and the rest required the cons- truction of piles with a diameter of 1,000 metres. Two metallic structures have been constructed as an emergency eva- cuation system for the viaduct. The cladding was made of metal mesh. The viaduct works are complemen- ted with the installation of a railing with incorporated lighting along its entire length, channelling trays for installations, low-voltage wiring and an earth connection system. The design has been adapted to the regional culture, with vaults that represent a bridge between the historic architecture of Qatar and its future as a beam of innovation and prosperity. B U S I N E S S 19 B U S I N E S S