Recently, the first ring frame beam of the end shaft in the Jiangbei section of the HT-A1 (A3 bid section) of the Haitai Yangtze River Tunnel project was completed with concrete pouring, marking another important milestone in the tunnel's construction.

"The end shaft serves as the entrance and exit of the tunnel project and is a key structure connecting the inside and outside of the tunnel. As an important component of the end shaft, the first ring frame beam plays a vital role in ensuring the stability of the overall tunnel structure. The completion of this pouring has laid a solid foundation for subsequent end shaft construction," introduced the on-site project manager.

During the pouring process, the construction unit strictly followed design requirements and construction specifications to ensure construction quality and safety. Advanced construction technologies and equipment were adopted, construction organization was optimized, and on-site management was strengthened to ensure the smooth progress of the pouring process.