Core Points - The main tower of the Shencheng Railway's bridge over the Modao River has been capped, with the second tower expected to be capped by the end of June 2023, laying the groundwork for the line's completion by 2028 [1][4] - The Shencheng Railway spans 116 kilometers, connecting five cities in the Guangdong-Hong Kong-Macao Greater Bay Area, serving as a major intercity corridor in the Pearl River Delta [1][6] Project Details - The project, undertaken by China Railway Construction Bridge Bureau, has a total length of 23.72 kilometers, with the bridge comprising 100% of the project [2] - The main bridge measures 689.8 meters in length, with a main span of 320 meters, and is designed to cross a Class I navigation channel at a height of 140 meters [2] Construction Challenges - The construction of the main tower faced significant challenges, including high navigation standards, fast water flow, and limited working space, with a focus on high-altitude work risk management and temperature control for large concrete volumes [4][6] - The project implemented a "three-dimensional safety protection network" and utilized a fully enclosed intelligent tower construction system to enhance precision and stability, reducing high-altitude work risks by 50% [4][6] Technological Innovations - The project employed digital twin technology to simulate construction processes, optimizing construction plans and using intelligent monitoring systems to track stress, deformation, environmental parameters, and equipment status in real-time [4] - The maximum single concrete pouring volume reached 518 cubic meters, with temperature sensors installed to monitor temperature changes during the pouring process, effectively preventing cracks due to temperature stress [6] Economic Impact - The Shencheng Railway is a key project in the Greater Bay Area's "half-hour economic circle," enabling travel from Jiangmen to Shenzhen in under one hour and connecting with the Guangzhou-Shenzhen-Hong Kong Express Rail Link, which is crucial for developing a "railway-based Greater Bay Area" [6]