[Spring Festival in progress].
At 0:20, the temperature was minus 2 degrees Celsius.
Da da da ......"A half-meter-long boat rowed across the water and headed for the Anjiu High-speed Railway Bream Island Yangtze River Bridge. There was no one on board, and the "captain" Cheng Yazhuo was standing on the bridge and commanding in the air.
Located at the junction of Jiangxi and Hubei, the Yangtze River Bridge is the first cable-stayed bridge in China. During the Spring Festival, Cheng Yazhuo, the foreman of the inspection work area of the Jiujiang Bridge section of the Nanchang Railway Bureau, led the team to overhaul the bridge by using unmanned ships, bridge cable detection machines, laser rust removers and other equipment when there was no train traffic in the early morning, which was called the "robot team" by everyone.
Surveying and mapping data is related to railway safety, and robots have helped a lot! Cheng Yazhuo raised the remote control of the unmanned ship in his hand, "In the past, the surveying and mapping work had to be manually submerged in the water, which was easily disturbed by passing ships, weather and other factors. Now, with an unmanned boat, the work can be completed in two hours, and the measurement accuracy can be greatly improved. ”
Not long after, the unmanned boat sailed back to the shore, and the longitudinal section of the riverbed was drawn simultaneously. Cheng Yazhuo also released an underwater robot to detect the status of the bridge pier.
Not far away, the bridge cable detection machine shaped like Spider-Man climbed rapidly on the bridge cable, and the squad leader Liu Ze stared intently at the computer screen next to him. Time passed minute by minute, the data line was calm and waveless, and the steel cable was not damaged. 10 minutes later, Liu Ze let out a sigh of relief, and his tense limbs relaxed, "This steel cable has passed the test, and then the next one will be overhauled."
The Yangtze River Bridge has two main towers, 368 cable-stayed cables, and has withstood nearly 80,000 tons of cable-stayed cables, and the state of each cable-stayed cable is related to safety. "In the past, we took a hanging basket, and the whole person hung above the river, looking at the situation of the cables one by one, and spent a month overhauling. The river is windy, and when the wind blows, it is difficult to open your eyes. With the robot now, you can get the job done in 6 days! Liu Ze rubbed his hands happily.
The overhaul continues, and laser rust removal is underway in the middle of the bridge deck. I saw that the team member Fang Yangyang touched the instrument screen, and the rust remover started to work in the specified area, accompanied by the sound of "sizzling", the steel beam became as bright as new. "Before manual rust removal to keep waving the rust shovel, after a while, the hands are so sore that they can't lift up, if they encounter the pulverized parts, they have to make eighteen kinds of martial arts, and now, as long as they press lightly."
At 4 o'clock in the morning, Cheng Yazhuo's team and their "robot team" finished their work.
Reporter Wang Yang, Li Yulan, correspondent of this newspaper, Li Xiang, Zhou Xinrong).