At 21:30 on February 21, the concrete pouring for the first pile foundation after the holiday at the Sangyuanzi Yellow River Bridge Project, undertaken by Gansu Road & Bridge Second Branch Company, was successfully completed.

　　To ensure the smooth pouring of the pile foundation, the project department strictly followed technical specifications during construction. Before pouring, detailed quality and safety technical briefings were given to the construction personnel, and comprehensive performance testing and hazard identification were carried out on the machinery and equipment entering the site. The mud properties after hole cleaning and the hole-forming quality of the pile foundation were all tested, and all preparatory work before concrete pouring was completed. During the pouring process, testing personnel strictly controlled performance indicators such as concrete slump flow, and technical personnel strictly controlled technical parameters such as suspension height and tremie pipe embedment depth, ensuring that the pile foundation quality met specification requirements.

　　The successful pouring of the first pile foundation concrete greatly boosted morale, played a positive role in the project's rapid resumption of work, and laid the foundation for the smooth achievement of the annual targets. At present, all work faces including the south approach bridge pile foundations, the south main tower, and the steel reinforcement processing center have fully resumed work and production, and a vigorous construction upsurge is rapidly unfolding.