After over a month of urgent construction, on September 30th, the Binh Trieu 1 Bridge (Ho Chi Minh City) – a vital artery spanning the Saigon River – completed its clearance height elevation phase.
This marks a significant milestone, ushering in the final phase encompassing structural reinforcement, road surface completion, and preparations for reopening to traffic.
Observations by VTC News reporters on October 2nd revealed that the Binh Trieu 1 Bridge span, after over a month of construction, had been raised by 1.08 meters, reaching a clearance height of 7 meters. This crucial parameter meets the exact technical requirements, paving the way for the smooth execution of subsequent stages and ensuring on-schedule traffic reopening.
On-site, the bridge span has completely separated from the pier head, creating a noticeable gap. This vividly demonstrates the meticulousness and precision required in the entire clearance height elevation process.
To achieve this, the construction unit employed a hydraulic jacking system combined with hundreds of steel shims, meticulously operated to ensure the balance of the massive structure weighing thousands of tons.
Throughout the construction process, engineers and workers were on 24/7 duty at the bridge piers, taking turns operating the jacking system and adding shims. Every detail was closely monitored to ensure absolute safety for the project and adherence to the schedule.
Beneath the bridge, layers of steel supports were stacked firmly, creating a space both silent and tense. Here, each lifting stage was meticulously calculated, reflecting the carefulness and precision in every technical maneuver.
Mr. Nguyen Viet Quang, Head of Infrastructure Management Department 2 (Ho Chi Minh City Department of Construction’s Road Infrastructure Management Center), stated that the project has entered its final phase, encompassing cap beam construction, span fixation to piers, and road surface completion. Traffic is expected to resume normal operation by late November.
The Binh Trieu 1 Bridge clearance height elevation project utilizes advanced hydraulic jacking technology, enabling the entire 11,000-ton bridge structure to be raised while maintaining its original span configuration. This solution is not only suitable for the bridge’s still-sound structure but also offers significant economic benefits by substantially reducing costs compared to new construction.
The project mobilized a large number of jacks positioned under the piers and beams, including 76 jacks with a 400-ton capacity and 30 jacks with a 500-ton capacity. All were connected to a central computer system on the bridge through hydraulic lines and stroke sensors. Thanks to the high-precision sensor system with an accuracy of 0.1 mm, the entire bridge structure was lifted gradually, ensuring safety and stability throughout the construction process.
Mr. Nguyen Viet Quang noted that the technology employed in the bridge lifting process is quite complex, requiring a highly skilled engineering team for operation. Although hydraulic jacking technology is not new globally, lifting such a large bridge to this height is unprecedented in Vietnam. Initially, the project received support from a foreign engineer, but after a short period, Vietnamese engineers fully mastered and directly managed the entire process.
A representative from the Ho Chi Minh City Department of Construction stated that alongside the final stages of the Binh Trieu 1 Bridge, the Binh Phuoc 1 Bridge clearance height elevation project is also underway, with jacking scheduled to commence on October 10th.
According to the plan, the Binh Phuoc 1 Bridge will be raised by approximately 1.25 meters, utilizing hydraulic jacking technology and a similar construction process as applied to the Binh Trieu 1 Bridge.
The clearance height elevation projects for both the Binh Trieu 1 and Binh Phuoc 1 Bridges are expected to facilitate safer and smoother navigation for cargo and tourist vessels on the Saigon River. Concurrently, the Ho Chi Minh City Department of Construction will collaborate with relevant agencies to review and assess the entire bridge system with inconsistent clearance heights to develop implementation plans for the next phase.
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Bình Triệu 1 Bridge has completed its clearance height increase of 1.08 meters and is expected to open to traffic by the end of November, alleviating congestion at this key gateway to Ho Chi Minh City.
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