市域（郊）铁路成都至德阳线启动预制梁架设

Core Viewpoint - The Chengdu-Deyang Line of the suburban railway has commenced the prefabricated beam installation, marking a significant advancement in the construction of the elevated section of the line [1] Group 1: Project Overview - The Chengdu-Deyang Line is a key project in the "urban rail transit circle," utilizing a "factory prefabrication and on-site installation" method to enhance construction efficiency and reduce environmental impact compared to traditional methods [3] - The elevated section of the Chengdu-Deyang Line spans approximately 45.4 kilometers, accounting for 64% of the total line length, requiring the installation of 1,156 prefabricated beams produced at three manufacturing sites [3][4] Group 2: Construction Techniques and Innovations - The construction employs a composite foundation reinforcement technique to address the challenges of soft soil in the Sanxingdui area, ensuring the safe placement of heavy prefabricated beams [3] - A smart beam yard management platform has been established to create a "growth profile" for each prefabricated beam, enabling digital control of production parameters for quality assurance and traceability [4] Group 3: Project Progress and Impact - As of now, significant milestones have been achieved, including the completion of the main structure for nine underground stations and the ongoing installation of electromechanical systems and decorations in two stations [4] - The Chengdu-Deyang Line is expected to significantly reduce travel time between Chengdu and Deyang, facilitating regional industrial collaboration and efficient transportation for personnel [4]