**成都7月24日电** ——在四川省眉山市的建设现场，经过60分钟的精确操作，西南地区首座宽幅刚构转体桥顺利转动到位，成功跨越了成昆铁路，这一壮举标志着眉山绕城公路项目的关键控制性工程取得了重大突破。这一成就不仅为全线通车奠定了坚实基础，也展示了中国在基础设施建设领域的先进技术与高效执行力。
### 跨越成昆铁路的里程碑
**项目背景**：眉山绕城公路项目，作为“十三五”规划中“两横七纵四联两环”一级公路网的重要组成部分，旨在优化眉山市的交通网络，提升区域内综合运输体系，促进成渝地区双城经济圈的互联互通。此次转体桥的成功转体，是项目中极具挑战性的工程之一，其技术难度和安全要求均达到了极高水平。
### 安全与创新并重
**施工挑战**：在转体桥施工过程中，主梁距离铁路线最近仅2.7米，对施工安全提出了极高的要求。为确保施工过程中的安全可控，项目团队首次引入了雷达扫描电子屏障、BIM与可视化技术交底、列车接近预警系统、物联锁以及转体过程智能化可视监控系统等先进手段，从源头上控制了施工安全风险，实现了对铁路运营的全方位保护。
### 推动区域经济发展
**项目意义**：眉山绕城公路的建设不仅将改善区域内的交通环境，提升路网通达能力，还将对成都、德阳、眉山和资阳等地区的同城化发展产生积极影响，推动经济一体化进程。随着项目的推进，眉山市乃至整个四川地区的经济发展将迎来新的机遇。
### 结语
在确保铁路运营安全的同时，眉山绕城公路项目的顺利推进，展示了中国在基础设施建设领域的卓越能力与创新精神。这一成功不仅为眉山市的交通建设树立了新的里程碑，也为未来中国乃至全球的基础设施建设提供了宝贵的经验与启示。
英语如下：
### Sichuan Meishan: Special Bridge on Ring Road Successfully Crosses Cheng-Kun Railway
**July 24, Chengdu** — In the construction site of Meishan City, Sichuan Province, after 60 minutes of precise operation, the first wide-span beam truss swing bridge in Southwest China successfully positioned itself, crossing the Cheng-Kun Railway. This achievement marks a significant breakthrough in the key control engineering of the Meishan ring road project. Not only does it lay a solid foundation for the full-scale operation, but it also demonstrates the advanced technology and efficient execution capabilities of China in infrastructure construction.
### Milestone of Crossing Cheng-Kun Railway
**Project Background**: The Meishan ring road project, as an integral part of the “Two Horizontals, Seven Verticals, Four Links, Two Loops” national highway network planned under the 13th Five-Year Plan, aims to optimize the transportation network of Meishan City, enhance the comprehensive transport system within the region, and promote the interconnectedness of the Chengdu-Chongqing Economic Circle. The successful swing of the bridge is one of the most challenging engineering tasks in the project, with high technical difficulties and safety requirements.
### Safety and Innovation Combined
**Construction Challenges**: During the construction of the swing bridge, the main beam was only 2.7 meters away from the railway line, posing a high requirement for safety control. To ensure safety during the construction process, the project team introduced advanced methods such as radar scanning electronic barriers, BIM and visual technology briefings, train approach warning systems, IoT locks, and intelligent monitoring systems during the swing process. These measures were used to control safety risks at the source, providing comprehensive protection for railway operations.
### Boosting Regional Economic Development
**Project Significance**: The construction of the Meishan ring road not only improves the traffic environment within the region and enhances the connectivity of the road network, but also has a positive impact on the同城ization development of Chengdu, Deyang, Meishan, and Ziyang regions, promoting the integration of the economy. As the project progresses, the economic development of Meishan City and the entire Sichuan Province will see new opportunities.
### Conclusion
While ensuring the safety of railway operations, the successful advancement of the Meishan ring road project demonstrates China’s outstanding capabilities and innovative spirit in infrastructure construction. This success not only sets a new milestone for the transportation construction in Meishan City, but also provides valuable experience and inspiration for future infrastructure construction in China and globally.
【来源】http://www.chinanews.com/cj/2024/07-24/10256816.shtml
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