Riding the momentum to embark on a new journey, forging ahead with determination to achieve outstanding results. On February 12, after a 10-hour day-and-night battle, the first cast-in-place continuous girder of the A-ramp bridge at the Dadeng Interchange of the Xiamen-Kinmen Bridge (Xiamen Section), constructed with the participation of China Railway Tunnel Group, was successfully poured, marking a breakthrough progress in the project construction and creating favorable conditions for subsequent large-scale standardized construction.

The Land Area A-Ramp Bridge of the Dadeng Interchange, as a key node of the transportation hub, is like a "thoroughfare link" shouldering heavy responsibilities, closely connecting various areas and bearing the important mission of promoting smooth traffic flow. The A-ramp bridge has a total length of 187.63 meters, comprising two联 (link units) and six spans. The node project is located at the 7th link unit between piers A19# and A22#, with a total length of 96 meters (3×32 meters), a bridge deck width of 15.25 meters, and a girder body height of 2.1 to 3.0 meters. It adopts a prestressed concrete cast-in-place box girder structure. As the "strength faction" in the bridge structure, it possesses the notable advantages of high structural stiffness and good seismic performance. By applying prestress, it can effectively improve the crack resistance and load-bearing capacity of the girder. During the construction phase, C50 high-strength concrete was used to build a solid foundation for the bridge and give it the ability to resist external forces. At the same time, a composite support system composed of prestressed pipe piles, steel pipe columns, and Bailey beams was erected to precisely control construction errors, achieve efficient load transfer, comprehensively ensure both project safety and quality standards, and steadily bring this "thoroughfare link" from blueprint to reality, making it an important support for promoting regional transportation development.

To ensure the smooth pouring of the first cast-in-place girder, under the overall leadership of Xiamen Road and Bridge Group, the project team of China Railway Group, the lead construction unit, anchored to the key route, focused on construction difficulties, scientifically allocated the resource system, and established a multi-level coordination and linkage mechanism. Through regularly organizing technical seminars and special quality analysis meetings, dynamically correcting the construction plan, and precisely optimizing process connections, they successfully overcame difficulties such as cross-operation. At the same time, they implemented the Spring Festival攻坚 deployment requirements, strictly executed the duty and on-duty system, continued the wall-chart combat and supervision mechanism, compacted the main responsibility with the target responsibility list, and advanced project construction with a sense of urgency that brooks no delay, strictly guarding the bottom lines of construction safety and quality.

In the next step, the project team will take this as an opportunity to comprehensively carry out analysis of the first-piece project, solidify construction technical achievements, optimize the process flow, and accumulate experience and provide data support for subsequent large-scale construction. At present, all builders are advancing the project construction with the construction philosophy of high standards and strict requirements, going all out to sprint toward the goal of opening the Xiamen-Kinmen Bridge (Xiamen Section) to traffic and helping to improve the level of regional transportation interconnection.

The Xiamen-Kinmen Bridge (Xiamen Section), namely the Xiamen Third East Channel, is the fastest passage connecting Xiamen Island and the Xiang'an New Airport. After the project is completed, it will work in synergy with the Xiang'an New Airport and the Xiamen-Kinmen route to jointly shape a new pattern of three-dimensional land, sea, and air transportation across the Taiwan Strait. It will not only effectively alleviate the traffic pressure on the Xiang'an entry and exit island passages and the new airport area, but will also greatly improve the traffic efficiency from Xiamen Island to Xiang'an Airport, injecting new and powerful momentum into regional economic and social development.