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January 17, 2020

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New tunnels drilling through to Jing’an

Tunnels to Jing’an Temple Station on the city’s new Metro Line 14 were partly completed by innovative subway-building equipment yesterday, which means that the most challenging phase of construction is now completed, Metro authorities said.

A Rectangular Pipe Jacking Machine, which was used for the first time on a subway tunnel in China, made it possible to complete the project within a relatively limited area. It also reduced the budget and time of construction.

Jing’an Temple Station is in downtown Shanghai, and is a busy station for lines 2 and 7 and the Yan’an Elevated Road.

“We couldn’t use traditional subway-building equipment because it would cause the destruction of existing roads,” said Wu Dongpeng, manager of the Metro Line 14 project.

Lu Kangming, an engineer of the project’s construction team said: “We redesigned many software and hardware systems to alleviate traffic pressure during the construction.”

“The safety of construction workers was also an important part of our work. We used an automatic monitoring system to track the locations of personnel.”

In the future, the Rectangular Pipe Jacking Machine is likely to be used for other subway projects in downtown areas, according to Lu.

Line 14, which will run from west to east in northern Shanghai, will have 31 stations, from Fengbang in Jiading District to Jinsui in the Pudong New Area. It passes through Putuo, Changning and Xuhui districts.

Trains will be equipped with unmanned driving technology and all stations are underground.

The line has interchange stations with lines 1, 2, 4, 6, 7, 8, 9, 10, 11, 13 and 16, and the future with Lines 15, 18 and 20.

Work of the Metro Line 14 started in September 2016.


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