This is the first time in Vietnam that modern hydraulic jacking technology is applied to lift the bridge's clearance on-site, without having to dismantle the span. More than 100 Vietnamese engineers and workers directly undertake the entire process from calculation, operation to supervision. The system of more than 100 hydraulic jacks operates synchronously, ensuring the difference does not exceed 1 mm, helping the bridge lifting process achieve absolute precision.
Engineer Cao Thanh An, Chief Supervisor of the project, said: “During the lifting process, if any problem occurs, the system will immediately stop and report to the control center the exact location of the error for timely correction. In Vietnam, lifting bridges by replacing the bearing method is familiar, but this is the first time the static lifting technology has been applied. Each bridge span requires 28 to 30 hydraulic jacks, all of which must operate synchronously, with a deviation not exceeding 1 mm. If the error is larger, the entire system will automatically stop working.”
Mr. Nguyen Viet Quang, Head of Infrastructure Management Department No. 2 (Road Traffic Infrastructure Management Center, Ho Chi Minh City Department of Construction) said: “The preparation phase encountered many difficulties because this is the first project to apply static lifting technology. We, along with consulting and project management supervisors, have worked closely to gradually resolve the problems. Up to now, the project is stable, reaching about 75% of the progress, expected to be completed in November 2025. The team of nearly 100 engineers and workers are all Vietnamese, which makes us very proud because it proves that Vietnamese people can master the most advanced technology.”
According to Mr. Quang, the biggest challenge of the project comes not only from technology but also from the weather, when sudden rains in Ho Chi Minh City have forced the construction to stop many times. However, the team of engineers and workers have pushed the construction time up to make up for lost time, determined to keep the progress.
Sharing more about the technology, Mr. Quang said that Binh Trieu 1 bridge weighs about 11,000 tons, lifted by 106 hydraulic jacks with a capacity of 400 - 500 tons. Each 4 cm lift takes about 2 hours, so far the bridge's clearance has been raised more than 70 cm.
“In the past, raising a bridge often required dismantling each span, which was time-consuming and costly. Now, Binh Trieu 1 Bridge is raised on the spot, minimizing the impact on traffic. This is a big step forward, opening up the prospect of applying it to many other bridges in the future,” Mr. Quang emphasized.
According to experts, this new zero-lift technology significantly saves time and costs compared to traditional dismantling methods, while also minimizing impacts on traffic. More importantly, this is a testament to the high-tech mastery of Vietnamese engineers in the field of infrastructure construction.
After more than half a century of being associated with the city's people, Binh Trieu 1 Bridge is now becoming a symbol of new advances in Vietnamese science and technology, opening up prospects for application to many other projects in the future.
Source: https://baotintuc.vn/anh/tp-ho-chi-minh-cau-binh-trieu-1-da-nang-len-hon-70-cm-bang-cong-nghe-hien-dai-20250920161551806.htm
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