At the construction site of Chongqi Gongtie Yangtze River Bridge, a key construction process has recently been successfully completed: with the precise force of hydraulic jacks, kilometer level steel beams are smoothly pushed into place with millimeter level accuracy, pressing the "fast forward button" to speed up the project. This technological breakthrough not only demonstrates the hardcore strength of bridge construction in China, but also solves the core problem of installing large-span steel beams.

The Chongqi Gongtie Yangtze River Bridge, as an important transportation hub connecting Shanghai and Jiangsu, faces challenges in steel beam installation such as large span, heavy weight, and extremely high precision requirements. Traditional top push technology is prone to displacement deviation, making it difficult to meet the smooth docking requirements of kilometer level steel beams. The hydraulic jack system used in this construction integrates intelligent control and real-time monitoring technology, which can dynamically capture the posture of the steel beam through sensors, synchronously adjust the thrust and stroke of multiple jacks, and strictly control the error within the millimeter range.

During the construction process, the group of jacks work together to gradually push the steel beams along the predetermined track. Technicians monitor data in real-time through intelligent terminals, precisely adjust parameters, and ensure that steel beams remain stable under complex stress conditions. Compared to traditional techniques, this technology significantly shortens the installation cycle, reduces the risk of high-altitude operations, and improves the stability of engineering quality.

The success of this millimeter level top push operation has laid a solid foundation for the subsequent construction of the Chongqi Yangtze River Bridge and accumulated valuable experience for the construction of large-span bridges in China. With the gradual progress of key processes, the project will further accelerate the construction progress, and it is expected that after completion, it will greatly improve the efficiency of regional transportation and help promote the integration of the Yangtze River Delta.