高铁建设者重庆山区“造桥记”：智慧悬臂造桥机投用

Core Insights - The article highlights the successful deployment of a new generation of intelligent cantilever bridge machines in the construction of the Xiyu High-speed Railway, specifically at the Beibei Tianfu Jialing River Bridge, marking a significant advancement in bridge construction technology in challenging terrains [1][2]. Group 1: Construction Challenges and Solutions - The construction site presents steep terrain and hard rock, posing challenges for the establishment of construction access and operational areas [2]. - Traditional cantilever bridge machines face issues such as precision control difficulties, high labor intensity, and safety risks, which can hinder project progress and quality [2]. Group 2: Technological Advancements - The new intelligent cantilever bridge machine features automated functions such as automatic walking, template opening and closing, and automatic curing spray, significantly enhancing construction efficiency and safety [2]. - The machine is equipped with a fully synchronized hydraulic control system, improving the efficiency of cross-span operations by 50% compared to traditional equipment [2]. Group 3: Impact on Construction Efficiency - The use of the intelligent cantilever bridge machine has led to a 20% reduction in the construction period for the cantilever segment and a 20% decrease in the number of on-site workers, resulting in lower labor costs [2]. - The machine's design includes a "tofu block" style inner mold for easier assembly and disassembly, and a "stacked" outer mold that allows for quick conversion between standard and cable-stayed segments, improving overall construction quality [2]. Group 4: Project Significance - The Xiyu High-speed Railway is a crucial part of the national "eight vertical and eight horizontal" high-speed rail network, and its completion will greatly facilitate travel for local residents and support economic development along the route [4].