The whole line in July! What's the progress of the Ji'nan R1 line?
the Ji'nan times
with the continuous updating of the subway construction schedule, the day of the dream of the Jinan subway is getting closer and closer. On the 6 day, the reporter learned that the two section of the four Bureau R1 line, which was responsible for the subterranean rails, was transferred to the underground section of the west station of Ma Zhuang West Station in the early March, and was spread to the west station of Ji'nan at the end of March. At present, it is running toward the grand Yang Zhuang station. The laying work of the underground section of the R1 line has been completed nearly 40%.
track laying
above ground assembly track was re transported to underground
last December, the track laying work in the underground section was officially launched. Starting from the connection point of the R1 line, the road first started from the R1 line of Yufu River, about 13 meters high, and a gentle slope ran into the underground tunnel. It soon spread to the first underground station, Wangfu Zhuang station at the south end. Then, in the early March, it started the most north end of the subway laying work, from the horse Zhuang West Station to the west station in Ji'nan, after arriving at the next target Da Yang Zhuang station.
R1 line track installation Secretary of the four Bureau of China Railway, introduced that the underground rails are different from the overhead section of the rails. In the elevated section, the track laying is mainly used in the construction of the overlay method, which can be used to improve the construction progress of the rails. It is reported that because of the narrow space in the tunnel, the rail materials can not be reversed to the construction site, they first in the track base of the track assembly form, through the track to push the track to the site. The erection of track and erection of concrete by subway track laying vehicle is more mechanized. Yu Jin said.
reporters learned that the rail of the underground section comes from Panzhihua steel mill, and is the best steel in the country. After on-site processing and assembly into a track row, and then hoisted to the underground tunnel for laying, pouring and welding. Fang Taotao, the executive manager of the section, said that the assembled rail is bound to the reinforcement cage. In the next step, the steel cage plays the role of fixing and supporting, and is always hidden in the concrete.
maintenance
scan code can see orbital birth information
every walk along the track, you can see that there is a two-dimensional code mark between connectors. After the scavenging, we can see a sign of concrete pouring, including pouring position, pouring time, concrete strength, concrete manufacturer, technician name, entering mold temperature and all kinds of detailed information. In the construction of R1 line track, we strengthened the information management and application. Yu Jin told reporters that every time after pouring, a two-dimensional code will be printed at the same time for later operation and maintenance.
in addition, on each side of the tunnel wall, there is a circular metal hole at about 30 meters. This eyed circular hole is called the SCP net control point. Fang Taotao introduced that using this precise measurement and control technology can greatly improve the overall relative accuracy of subway track construction. The rail on the main line of the subway should be welded into a seamless long rail, and the precise measurement and control can also grasp the smoothness of the rail joint. When the train runs in the future, the rail is.Amp; lsquo.Amp; rsquo, which can not see the interface completely, to ensure the safe and smooth operation of the subway, and to ensure the comfort of the passengers, and to provide a permanent reference for the later operation and maintenance and settlement monitoring.
progress
7 R1 line R1
at present, R1 line vehicle base has also entered the track laying mode. On the 6 day, Dong Yanpeng, deputy manager of the R1 railway project of China Railway Bureau, said: Recently, the operation of the vehicle application library was formally launched, and there were 26 ballast beds. The vehicle utilization library is the lounge for the future R1 line metro vehicle parking and maintenance. Above the vehicle base, the elevated section of the R1 line is in the state of short rail connection. The track track is laid and poured to complete the track mode. After the completion of various processes, the state of the long rail transit can be reached, and the elevated section will really be completed. According to the plan, the whole track track laying will be completed in July this year to achieve rail transit. The safety evacuation platform of
R1 elevated section also started construction work in mid March. Dong Yanpeng told reporters that the evacuation platform is an emergency facility for passengers to evacuate quickly and orderly in an elevated and interval tunnel. Each station has an emergency evacuation platform. In case of emergency parking, passengers can walk safely to the nearest station through the emergency evacuation platform.
in addition, the first phase of the subway R3 line project is also in the construction, 13 stations have 6 station main structure capped, according to the time sequence are Wang Shun man station, industrial North Road station, long Ao station, Li tillage Road station, TanTou Railway Station, West Zhou Zhuang station.