Longest shield interval of Subway Line 3 soon to achieve twin-track cut-through

Date:2018-02-03

The left line of the tunnel of the interval from Qingxiu Mountain Station to Nanning Museum Station of Subway Line 3 has been successfully cut through.


Recently, the shield tunneling machine has put down the walls in the left line of the tunnel of the interval from Qingxiu Mountain Station to Nanning Museum Station of Subway Line 3, which represented the successful cut-through of the left line in this interval. The interval is 1,990.8 meters long and becomes the longest shield tunnel with the biggest buried depth and the hardest surrounding rocks in the Nanning Rail Transit projects so far. 43 of the 48 single-line interval tunnels have been cut through in the Subway Line 3 of Nanning Rail Transit Subway Line 3 with a total tunneling mileage of 47 kilometers, which completed 97% of the whole length of the tunnel intervals.


The successful cut-through of the left line of the interval has provided a place for the subsequent construction and laid a solid foundation for the timely operation of the Subway Line 3.

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