Sunday, March 11, 2007

Metro Work Goes Underground


The Dubai Metro project is moving forward at a rapid pace. Right on schedule, work will soon start from the Jebel Ali Industrial station, moving towards Dubal station, and from Al Barsha station moving towards Tecom station.

Digging for the second tunnel will begin from March 25 from Al Rigga towards Deira City Centre. As a result, traffic in this area will be affected temporarily, and travellers are advised to take alternative routes. Efforts have been made to minimise vibrations to buildings along the route of the tunnel.

For the two new stations, there will be seven launching girders working on the Red Line with one already in operation near Interchange 5.5 on Sheikh Zayed Road.

This machine has completed laying six spans of track, each span 38 metres long, said Adnan Al Hammadi, Director of the Construction Department at Dubai Rail.

Progress is most visible in the construction of the 44.1 kilometres of elevated track on which the Metro’s trains will travel.The track is supported by an estimated 1,171 steel and concrete piers, which will be tested to take up to four times the expected load.

The viaduct along which trains will run will be laid out by seven machines called “launching girders”, which will lift the viaduct segments and lay them on the piers.

“We have chosen this method because it provides the best mechanism method of construction that has minimum disturbance to traffic,” said Al Hammadi.

Work is progressing on the line’s four underground stations in Deira and Bur Dubai. Motorists on Sheikh Zayed Road have already had the first glimpses of what the Metro’s 44.1 kilometres of elevated tracks will look like.

Behind the Dubai Municipality building, where Union Square station is located, a $7 million (Dh25.7 million) tunnel-boring machine has already started its journey, which will eventually see it passing under Dubai Creek and into the BurJuman Metro station.

“The operation went very smoothly from day one,” said Al Hammadi.

He said since the digging operation started, there have been no cases of water leakage anywhere.

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