China's bridge projects have set a number of new records

Body translation

Chinese engineers have developed advanced techniques to build bridges in challenging rugged hilly areas.

Chinese engineers have developed advanced technology to build bridges in rugged and challenging mountainous areas.

81 individuals and 50 collectives were honored at the National Engineering Awards for outstanding contributions in the field of construction technology in Beijing on January 19, according to CGTN. One of the winning teams included engineers in southwestern China's Guizhou province. They developed 7 state-of-the-art techniques and built 12 world-leading bridges despite difficult geographical conditions, fragile ecological environments and many other challenges.

On January 19, in Beijing, 81 individuals and 50 groups were awarded the National Engineering Award for their outstanding contributions to the field of construction technology, CGTN reported. One of the winning teams includes engineers from Guizhou Province in southwest China. They overcame many challenges such as harsh terrain and fragile ecological environment, developed 7 modern technologies, and built 12 world-leading bridges.

On January 11, the process of connecting the main arch of Wumengshan Bridge on the Nangung-Xinglong Highway was completed. This is the first time that the whole prefabricated lifting technique has been used in hilly areas around the world. Zhang Shenglin, a member of the award-winning engineering team, said, "Normally, we have to use a large bridge machine to build. Instead, we use lifting systems to install every component, which increases efficiency."

On January 11, the right width of the main arch circle of the Wumeng Mountain Bridge on the Nayong-Qinglong Expressway was successfully completed. The bridge is the first of its kind in the world to be fully prefabricated and hoisted in a mountainous area. Zhang Shenglin, a member of the award-winning engineering team, said, "Normally, we have to use a large bridge erector to build the bridge, but this time we used a lifting system to install each component, which improved efficiency. ”

According to Han Hongju, the lead engineer, when they built the Beipanjiang Bridge on Guanxing Expressway, there was no road leading to the planned construction site. All materials must be transported by human or horse power. The distance from their facility to the bridge is expected to be more than 10 km and take about 4 hours to travel.

According to Han Hongju, the leader of the engineering team, when they built the Beipanjiang Bridge on the Hangrui Expressway, they did not plan a road to the construction site, and all materials had to be transported by manpower or horsepower. The distance from the place where the materials are stored to the bridge is more than 10 kilometers and takes about 4 hours.

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A suspension bridge over a large gorge above the Huanjiang River in Guizhou province will be the world's tallest bridge after opening to traffic in early 2025. With a height of 625 m from the bridge deck to the water surface, the Hoa Giang River Gorge Bridge is a total length of 2,980 m. The main span of the bridge is 1,420 m. The main structure of the bridge is completed in 2024. Once in operation, the bridge will reduce travel time through the canyon from 70 minutes to one minute, contributing to tourism promotion and rural modernization in the region.

A suspension bridge over the Huajiang Gorge in Guizhou province will be the tallest bridge in the world when it is completed and opened to traffic in early 2025. The distance from the bridge deck to the water surface of the Huajiang Gorge Bridge is 625 meters, the total length is 2,980 meters, and the main bridge is 1,420 meters. The main structure of the bridge will be completed in 2024. After completion, the time to cross the canyon will be shortened from 70 minutes to 1 minute, contributing to the promotion of tourism and the modernization of the countryside in the area.

Another bridge over the Jiangjie River, also in Guizhou, built by the award-winning team, not only boosts local transportation but also offers many economic and ecological benefits. Mu Jinwei, a member of the team, said the materials they used for the construction were all recycled soil and waste rock from roadway construction. With a breakthrough in machine mixing sand concrete technology, the amount of materials used for bridge construction is 100 million m3, saving costs of more than $3.19 billion and reducing more than 3.3 million tons of carbon-containing emissions, according to Mu.

Another bridge across the Jiangjie River, also in Guizhou, was built by an award-winning research team that not only improved local transportation, but also brought many economic and ecological benefits. Mu Jinwei, a member of the engineering team, said that the materials used in the construction were all soil and waste rock recovered during the construction of the roadbed. According to Mu Jinwei, with the breakthrough of machine-made sand concrete technology, the amount of materials used for overpass construction has been reduced by 100 million cubic meters, saving more than 3.19 billion US dollars in costs and reducing carbon emissions by more than 3.3 million tons.