Line 19 of the Metro crosses Yanxi Lake, and there is no leakage point on the tunnel. A two -dimensional code can be traced on the source

The Yangtze River Daily Da Wuhan Client September 22 News On the 22nd, at Huashan New Town Station of Metro Line 19, Metro engineer Lu Yingming sweated from the tunnel, from the station to the bottom of Yanxi Lake about 5 kilometers. Check the quality of the pipe, which takes more than 2 hours each.

Make sure that the shield machine is in the best state to wear Yanxi Lake

Lu Yingming is an engineer of the Quality and Safety Supervision Department of Wuhan Metro Group. His main job is to view the quality and progress of construction on the spot. At 9 am, he wore a helmet to enter the construction site, took out the rebound instrument he carried, and pressed the aim.

Lu Yingming (left) used the rebounder to measure the concrete strength on Line 19. Correspondent Yuan Yonghua Photo

Lu Yingming uses data such as the sedimentation of the whole station instrumental tunnel, axis deviation, and attitude orientation. Correspondent Yuan Yonghua Photo

"This is to check whether the intensity of the concrete of the pipe tube is qualified." Lu Yingming introduced it while operating. The tunnel was assembled from a piece of pipes. Check and assemble before assembling to ensure the quality of the tunnel.

Subsequently, Lu Yingming and Xu Chengxiang, the chief worker of the No. 2 Metro Line 19 of the China Railway 11th Bureau, entered the tunnel. "Guliva Station-Huashan New City Station, the total length of 4188 meters. Last September, the shield was started. It has been dug for one year. At present, it has passed through Yanxi Lake and will soon reach the wind well in Yanxi Hubei." Xu Chengxiang said. In order to stable mud rocks, the geological conditions are poor, and the construction process is slightly careless, it may face problems such as leakage and water transparent, and the shield machine trapped.

Lu Yingming introduced that in order to ensure the smooth crossing of Yanxi Lake, they will be in front of the lake risk. Before construction, they will use the "LECD Risk Evaluation" method to comprehensively sort out and analyze the risks that may be encountered. During construction, on -site inspections are combined with video inspections with video inspections. , Check the monitoring data in the background, collect the excavation parameter information and other means to achieve dynamic tracking and control of risk; at the same time, carefully organize, scientific planning, strengthening supervision, focusing on control, strict acceptance, and ensuring that the shield machine is wearing Yanxi Lake in the best state Essence

Create a "five -no -tunnel" and strive to create "Quality Models"

The tunnel was clean and tidy, and Lu Yingming was skilled in using the whole station instrument to measure the sedimentation of the tunnel, the axis deviation, and the attitude orientation.

"Pipe tube damage, wrong platform, water seepage and other issues have always been a common quality problem in the process of shield excavation. In order to effectively improve the quality of engineering and build boutique projects, Gushishan Station-Huashan Xincheng Station is strived to create pollution-free, wrong platforms without wrong platforms. , No damage, no leakage, no over -limit 'five -free tunnels'. "He said that in quality control and monitoring and supervision, we must strictly put the" three levels ".

In the first level, the three -ring trial assembly must be performed after the pipe film is produced. The subsequent construction can be performed after the first acceptance of the acceptance. , Have all conditions, complete each link, and the preparation work can be launched in place. After the third level, after the shield is excavated, it must be performed. , Summarize summary, the acceptance is allowed to continue digging.

Lu Yingming (left) inspected the construction quality and progress of tunnel pipes. Correspondent Yuan Yonghua Photo

Lu Yingming (middle) and the construction staff of the 11th Bureau of China Railway studied the tunnel process, and strictly followed the drawings. Correspondent Yuan Yonghua Photo

Zhang Qiushi, director of the second standard director of Line 19, introduced that the supervisors settled in the management of the pipelines to check the process from raw materials, reinforced bars, concrete pouring, maintenance, and factory inspections.

The reporter saw the pipes with a QR code and the names of construction and supervision. It is understood that this is to make each pipe trace the source and compact the subject of quality responsibility.

At present, Gushu Shan Station -Huashan New City Station has been promoted to advance 4000 ducts. There is no leakage. The physical quality has reached the "five -no tunnel" standard, which is a veritable "quality bald soldier".

Wuhan Metro Line 19 starts from Wuhan Railway Station. The lines are walking along Wudong Road, Huacheng Avenue, Huashan Avenue, and Optics Valley Fifth Road. Gaoxin Second Road Station, 23.3 kilometers in length. Line 19 design operations is 120 km/h, and 140 km/h operating conditions are reserved in the long term. It is called the "fastest running" subway in Wuhan.

(Reporter Tao Changning correspondent Zeng Si Yuan Yonghua)

【Edit: Zhang Wenhui】

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