Due to the increase of operation years, the constant change of external environment and other factors, the tunnel structure in some sections of the uplink from Gaoqing Road station to Dongfang Sports Center Station of line 6 has been deformed and needs to be shut down for centralized treatment to eliminate hidden dangers.
Here, line 6 and line 11 share the same platform.
At present, the construction in the tunnel adopts 24-hour shift operation.
After the steel plate is installed, the joint between the steel plate and the steel plate needs to be welded, and the gap between the steel plate and the original concrete segment needs to be fastened with special materials and some subsequent operations.
“The work amount of the whole operation is still relatively large.
In the early morning of the first day of the lunar new year in the year of the tiger, the Spring Festival Gala has not yet ended.
At the station site, there are not only tips on renovation construction, but also tips on transfer lines.
“It’s like adding a hoop to the tunnel to prevent it from becoming an oval again, so as to ensure the safety of the tunnel structure.” As the parts with excessive deformation are not continuous, in order to speed up the progress, the tunnel is divided into three working faces for construction at the same time.
During the construction period, the traffic routing of line 6 is temporarily adjusted to the large and small routes from Gangcheng Road station to Dongfang sports center station and from Gangcheng Road station to Gaoqing Road station.
Many people visit relatives and friends.
Passengers who need to go to Gaoke West Road station can take line 8 to Yaohua Road station, and then transfer to line 7 to Gaoke West Road station.
Today is the first day of the lunar new year.
“After the previous investigation, there are 99 loops in this section of tunnel that need to be renovated due to excessive deformation.” Wangyi, the project manager of the interval tunnel structure renovation project, told Xiao bu that the original circular tunnel structure gradually developed into an oval shape due to excessive deformation.
The tunnel in the section of line 6 near the uplink of the Oriental Sports Center station is already a tense and busy scene.
For example, passengers who take line 6 to Dongming Road station can take line 8 to Chengshan Road station to transfer to line 13, and then to Dongming Road station.
Fuyiwei said that due to the long distance between the Oriental Sports Center Station and Gaoqing Road station, passengers can save time by transferring to other lines.
On the platform, a white baffle separates line 11 in operation from line 6 under construction.
As the passage space of subway trains, the “health status” of subway tunnels has been under close monitoring.
If the construction is carried out within oneortwo hours after the end of the daily operation as usual, these workload will last for almost two years.” Wangyi expressed.
“In order to strengthen the guidance, in addition to the circular broadcasting, the station has also added 8 station attendant assistants and the duty personnel of the management department to timely respond to passengers’ inquiries and provide transfer guidance.” Fuyiwei, the station master on duty, told Xiao bu that in addition, Yilabao and signs were placed at the entrance and exit to remind passengers.
It is reported that according to the current plan, the whole construction will be completed in the early morning of the seventh day of the new year, so as to ensure the normal operation of the first bus on the first working day after the festival.
After walking a section in the tunnel, you can see the diesel locomotive for construction on the track, on which are placed the robot welding machine and relevant equipment for hoisting.
The long Spring Festival holiday, that is, the period when the annual passenger flow is at the lowest, on the one hand, can minimize the impact of the renovation on citizens’ travel; on the other hand, it is also convenient for the use of large construction machinery and equipment and the transportation of a large number of construction materials.
Therefore, the tunnel with excessive deformation was restored to a safe range through grouting construction.
The structural renovation of the tunnel in the section of line 6 has begun.
The number of passengers waiting on the platform of line 6 is much higher than usual.
⬇️ The 24-hour shift operation enters the construction site from the Oriental Sports Center Station.
At the same time, in order to consolidate the grouting effect, a circular steel lining was made in the tunnel.
Text / Photographer: lijicheng editor: wangyumeng*.
The station has increased the driving force to guide the passenger flow orderly.
Among them, the section from Huaxia West Road station to Dongfang sports center station uses the down line for single line two-way operation, and the train interval has been extended to 22 minutes.
The design of the Oriental Sports Center station is special.
A number of constructors cooperated with each other to fix the steel plates with a thickness of 2 cm and a width of 1 m on the arc-shaped tunnel segments, which were connected with each other to form a ring.
