Recently, the mainline main works of Contract Section A6 of the Fuzhou Airport Second Expressway were completed, making it the first section on the entire line to finish the main construction task. This breakthrough at a key milestone has laid a solid foundation for accelerating the subsequent pavement and ancillary works phases.

The construction site is bustling with activity. On the wide auxiliary road of Contract Section A6, excavators and loaders work in turn, earth fill is spread and leveled layer by layer, and multiple rollers cooperate closely to compact the surface repeatedly. As the construction array advances steadily, a solid and smooth auxiliary road subgrade continues to extend forward.

It is reported that Contract Section A6 has a total length of 4.503 kilometers and mainly includes the 4,420-meter-long Hunan Grand Bridge, 2 auxiliary road bridges, 1 Hunan interchange, 15 culverts, as well as earthwork, auxiliary roads and municipal pipelines. The total project duration is 30 months, advanced in two batches of land use; the first batch started construction in June 2023 and the second batch in September 2024.

According to Li Tairan, the on-site person in charge of Contract Section A6, the bridge substructure has now been fully completed, with cumulative completion of 716 piles, 203 pile caps, 310 pier shafts, 180 bent caps, 2联 of cast-in-place box girders, and 7联 of steel structures (including 3联 of steel box girders and 4联 of steel plate girders). "We are currently making every effort to advance construction of the auxiliary roads on both sides beneath the bridge, striving to complete all auxiliary road subgrade construction by the end of May to create conditions for the asphalt concrete pavement works," he said.

"There are dense villages and towns and numerous enterprises along the project route, the underground pipelines are complex and cross local roads in many places, and the construction environment is relatively complicated," Li Tairan said. Since the start of construction, the project department has coordinated the efforts of all parties and scientifically optimized the construction organization plan. In particular, in terms of saving construction land and making full use of the space beneath the bridge for auxiliary roads, the Hunan Grand Bridge innovatively adopted a large-cantilever prestressed bent cap design, efficiently completing the mainline main works construction task.

The Fuzhou Airport Second Expressway project is constructed under the responsibility of Fuzhou Communications Construction Group, a subsidiary of Zuohai Group, and is jointly undertaken by China Communications Construction Group. The project has a total length of 24.3 kilometers; the mainline is built to a two-way, six-lane expressway standard with a design speed of 100 km/h. The bridge-tunnel ratio of the mainline reaches 91.4%. After the project is completed, citizens driving from the Yuanzhong interchange of the Third Ring Road via the Jin'an to Mawei section of National Highway 104 and the Fuzhou Airport Second Expressway will be able to reach Fuzhou Changle International Airport directly, with the whole journey taking about 40 minutes.

Source: Fuzhou News