Recently, with the completion of the final concrete pour, the last bored cast-in-place pile of the Dongying Yellow River Rail-Road Bridge on the newly built Tianjin-Weifang High-Speed Railway (Jin-Wei HSR), constructed by China Railway Major Bridge Engineering Group, has been finished, marking the successful conclusion of all bored cast-in-place pile construction for the project. At this point, this bridge, which sets a new record for the first span across the Yellow River and the largest group pile foundation for a rail-road combined bridge in China, has fully transitioned into the construction phase of pile caps and pier shafts.

It is understood that the Dongying Yellow River Rail-Road Bridge is located in Dongying District and Lijin County of Dongying City, co-built with National Highway G220, with a dual-direction six-lane first-class highway on the upper deck and a double-track high-speed railway on the lower deck. It is a key control project of the entire Jin-Wei HSR. The bridge has a total length of 2,230.4 meters and consists of three parts: the main bridge, the auxiliary bridge, and the approach bridges. The main bridge adopts a (90+210+600+255+105)-meter double-tower five-span steel truss cable-stayed bridge structure to cross the Yellow River; the auxiliary bridge adopts a two-span 122-meter simply supported steel truss girder to cross the right bank levee of the Yellow River; the approach bridges on both sides are both 11-span rail-road combined double-deck frame pier 32-meter simply supported girder bridges. The entire bridge uses approximately 350,000 cubic meters of concrete, 41,000 tons of steel reinforcement, and about 52,000 tons of steel girders.

Since the commencement of the bridge construction, the Dongying High-Speed Railway Construction Promotion Task Force has consistently adhered to leading project construction with high-quality Party building. Together with the owner unit, construction unit, and the construction units of each section, it established the Joint Action Party Branch for the Jin-Wei HSR (Dongying Section). The project team of the China Railway Major Bridge Engineering Group for the advance section of the Jin-Wei HSR has fully leveraged the battle fortress role of the "Party Member Commando Team." In accordance with the construction schedule milestone targets, they carefully organized and planned, reasonably allocated on-site personnel and mechanical equipment, and consistently adhered to rigid measures including proper implementation of construction organization measures, proper safety technical briefings, proper quality supervision and inspection controls, and proper fabrication and precise hoisting of qualified reinforcement cages. By introducing hole-forming detection equipment to conduct data collection, analysis, and full-process monitoring of various pile foundation quality parameters, they are striving to build a premium and reliable project.

The Jin-Wei HSR runs from Tianjin Binhai Station to Weifang North Station, with a main line length of 348.26 kilometers and a design speed of 350 kilometers per hour. It is an important component of the "Eight Vertical and Eight Horizontal" coastal corridor of the national trunk high-speed railway network and the auxiliary corridor of the Beijing-Shanghai HSR, and is also a landmark and leading project of the Shandong Demonstration Zone for a Transport Powerhouse. Upon completion, the project will fill the shortcomings in high-speed railway development in coastal areas such as the Beijing-Tianjin-Hebei region and the Shandong Peninsula, and significantly enhance the connectivity between the Yellow River Delta and city clusters such as the Beijing-Tianjin-Hebei region and the Yangtze River Delta.