The first shield construction of the second phase of shijiazhuang metro line 3 started

On April 17, at the construction site of hantong station of the second phase of shijiazhuang metro line 3, the first shield of the project was launched as the huge cutter plate slowly turned, marking the full acceleration of underground tunnel construction of the second phase of the subway line 3.
      According to the introduction, hantong station and nandou station area of the second phase of line 3 will be built by China railway construction 15th bureau group urban rail company. The left line shield was launched this time, heading from hantong station to nandou station. The area between hantong station and nandou station is located under the planned jinshajiang road with an east-west trend. The right line of the section is 1197 meters long, and the left line is 1198 meters long. The longitudinal section of the line is v-shaped slope, and the maximum longitudinal slope of the line is 24‰ downhill. The buried depth of the tunnel roof is about 11.3~18.9 meters. Left line and right line shield tunneling machine start from hantong station.

Shijiazhuang metro line 3 is a nw - southeast line in the planning of shijiazhuang rail transit network. Line 3 phase ii project construction began in May 2018, by ZhongTieJian company of north China, the east-west, up to three churches stand (excluding), stop at north township station, 8.1 km, 5 station interval, both for the underground station (AngLing station, in the tianshan street station, south bean station, working station township, north station), the average station spacing of 1.4 kilometers, the terminal shall have a township north music car depot. Except tianshan street station, which adopts open-cut + cover excavation method, other stations adopt open-cut construction method, and the interval adopts shield tunneling + open-cut construction method.

At present, the metro line 3, the second phase of the line 5 stations and beilexiang depot has been fully started construction. According to the construction arrangement in 2019, the second phase of line 3 will accelerate the construction of the main part of the project in an all-round way. It is planned that all the five stations on the line will be capped, and the interval will be over 80%. In addition, the first phase of the northern section of line 3 will reach trial operation conditions before the end of the year. The eastern section of the first phase of line 3 will realize "long rail connection", complete the installation and decoration of conventional equipment, and have power transmission conditions before the end of the year.