Nantong rail transit line 1 phase I project huimin road station to xingyu road station interval to realize the connection of the two lines

On the afternoon of April 28, Beijing urban construction south south civil engineering group co., ltd. contracted the construction of nantong rail transit line 1 phase 1 project between huimin road station and xingyu road station, which became the first long shield tunnel section of line 1 phase 1. The interval between huimin road station and xingyu road station, as the first section of nantong rail transit to resume construction, realized the connection between the two lines, which also reflects the careful planning and precise measures of the railway company, and comprehensively promoted the resumption of construction and production of rail transit.

The total length of the double line between huimin road station and xingyu road station is about 5211m, of which the right line is about 2602m long and the left line is about 2609m long. The two shield tunneling machines used in the interval double line started from huimin road line on May 12, 2019 and June 15, 2019 respectively. Construction process, the project department of tunneling parameters actively summed up and the construction parameters of targeted optimization, to overcome the difficulty, the of liquefied soil smoothly through the north overpass, Chen shu river crossing, Chen Qiaojian river, two layers of Chen Qiaojian by the shops, such as among the most wind well risk source, safety and quality control in place, good forming quality of tunnel segment lining. The measures of laying switches and double tracks in the tunnel effectively improve the construction efficiency.

Up to now, 24 of the 28 stations in the first phase of the line 1 project have finished capping the main structure. Accumulative investment shield machine 31 times, 31 single line interval through.