In mid-August, during the summer season, when the sun was blazing, several figures in yellow shirts like "Spider-Man" climbed at the bottom of the Yellow River Bridge in Jingyuan, Gansu. The percussion of "ding, ding, dong, dong," became more and more crisp in the sound of currents. .
This is a picture of the staff at the Baiyin Bridge Tunnel Inspection Work Area of the Lanzhou West Section of the Lanzhou Railway Bureau regularly inspecting the Jingyuan Yellow River Bridge.
The bridge is 350.28 meters long and has a net span of 60 meters. It has 6 piers, 2 abutments, 28 supports, 608 wooden ties, and tens of thousands of high-strength bolts. The quality of these parts and connecting parts Stability is directly related to the safety of pedestrians on railways and bridges.
During the summer transportation period, the water level of the Yellow River rises, and the mixed sand during the flood discharge has different degrees of impact on the bridges on the main stream of the Yellow River, especially like the Jingyuan Yellow River Bridge, which has been in service for 50 years. "Smile and smile" always affects the hearts of "bridge and tunnel doctors", and they need to "check their pulses" regularly to eliminate "lesions" in time to ensure the safety of railway traffic and passing pedestrians.
(Wang Guanghui and Song Jialong produced Guo Shihao)
Editor in charge: [Li Yuxin]