The northern extension section of Chongqing rail Transit Line 5 has been completed

On June 20, 2022, with the completion of the welding of the last short rail, the northern extension section of Metro Line 5 has been completed, marking a big step forward for the construction project of the line to open to traffic, and also laying a solid foundation for the smooth development of the follow-up work of "Dentsu", "Vehicle" and "joint adjustment and test".

There are three track-laying bases in the northern extension section of Line 5, of which the no. 1 track-laying base is located in the interval from Ganyue Avenue station to Lujiagou Station, the No. 2 track-laying base is located in the interval from Chunxuan Avenue station to Yuegang North Road Station, and the No. 3 track-laying base is located in the entrance and exit section. The track laying project of the line started from the no. 1 track laying base on March 25, 2022. After more than 80 days of hard work, the whole track was put into operation on June 20.

Track laying in order to speed up the progress, chongqing rail group as a whole arrangement, scientific and reasonable construction organization plan with construction unit, in three track-laying base configuration the large gantry crane hoisting equipment, as well as in each operation configuration of track-laying small-scale hoisting equipment, rail transport vehicles, special concrete hopper track-laying dedicated facilities, At the same time through standardized construction operations and strict safety and quality control to ensure the smooth progress of rail construction.

According to the different terrain, different types of track bed are adopted in the north extension section of metro Line 5, such as traditional track bed and high-standard trapezoidal sleeper to reduce the vibration and noise generated by train operation. In the construction process, the construction unit also uses CP ⅲ fine measurement technology to replace the traditional right-angle ruler rail adjustment way, to further ensure the precision of track laying.

Line 5 line, 8.64 km north extension engineering line across the liangjiang new area and Yubei District, after the completion of the form in series with the first phase of line 5, yuzhong district, dadukou district, jiulongpo district, shapingba district, and jiangbei, liangjiang new area, north and south of Yubei District backbone channel, further reduce the pressure on urban traffic, provide convenience for citizens to travel.