潍宿高铁至青岛连接线全线首个上跨既有线钢横梁吊装完成

Core Insights - The successful completion of the steel beam installation for the Qingdao West Fenghe Bridge marks a significant milestone in the Weishui High-speed Railway to Qingdao connection line project, laying a solid foundation for subsequent bridge and track construction [1][4] Group 1: Project Details - The steel beams installed have a span of 23 meters and weigh 118 tons, with the installation completed within a 120-minute window, showcasing the project's complexity [3] - The project team utilized a "steel bone connection" technique to ensure the steel beams were securely fixed to the concrete bridge piers, involving precise welding and high-performance concrete pouring [3] - The Weishui High-speed Railway to Qingdao connection line spans 108.78 kilometers and is part of the national "Eight Vertical and Eight Horizontal" high-speed rail network, enhancing connectivity between the Jiaodong Peninsula and major regions [5] Group 2: Challenges and Solutions - The project faced challenges such as narrow installation space, high precision requirements, and safety risks associated with operating on live rail lines [5] - A comprehensive safety protection system was established, incorporating human, material, and technical defenses, along with smart monitoring systems for real-time risk assessment [5] - The use of digital tools like BIM technology and smart construction platforms significantly improved construction efficiency and safety during the steel beam installation [5]