主缆是大桥结构体系中的主要承重构件，其核心作用是将整座桥的重量分布到主塔和锚碇上。龙门大桥 设计有两根主缆，堪称悬索桥的"生命线"，单根主缆由127根索股组成，直径约75公分。主缆架设的核 心，就是将这127根索股精准架设至桥体之上，每一步都考验着建设者的专业与严谨。 建设期间，安邦与团队直面滨海强季风气候、夜间高空作业安全风险等多项难题，采用高精度GPS全站 仪协同测量调整索股线型，精准把控每一根索股的架设精度，用专业技术守住了工程质量的底线。 于春子作为安邦的徒弟，是团队中的重要力量，对桥上的每一根索股都了若指掌。从索股牵引到架设入 鞍，再到索股线型调整，他全程参与每个环节，亲眼见证了每一根索股从东岸牵引至西岸，也见证 了"龙门"从蓝图变为现实。 2023年2月24日，广西在建最长跨海大桥——龙门大桥最后三根主缆索股顺利完成架设。如今，龙门大 桥已正式建成通车，极大缩减了防城港与钦州港的时空距离，两地的驾车时程由原来的1.5小时缩减至 25分钟。在这份时空跨越的背后，是一群默默无闻的建设者，用汗水和智慧浇灌出了这座跨海奇迹。 2020年8月，龙门大桥开工建设，安邦作为中交路桥建设有限公司龙门大桥项目的总工 ...

Core Insights - The completion of the last foundation excavation for the 110 kV Qidong Line Project marks a significant milestone, with a total of 56 foundations successfully excavated, laying a solid foundation for subsequent construction [1] - The project is located in the challenging terrain of the Qilian Mountains, with 85% of the tower positions situated on slopes or mountain tops, presenting high construction difficulty and safety management requirements [1] - The project is crucial for the Gansu Zhangye Su'nan Qiqing Industrial Park, enhancing regional grid structure and significantly improving power supply reliability and stability, while meeting the growing electricity demand from surrounding mining and industrial users [3] Project Challenges and Management - The project team faced numerous challenges, including hard geological conditions, difficult material transportation, and narrow working spaces, yet they ensured the smooth progress of the project through resilience and technical expertise [1] - The construction serves as an important test and demonstration of the engineering management capabilities of the State Grid Zhangye Power Supply Company and Gansu Electric Power Company under complex geological conditions [3] - Environmental protection measures were prioritized to minimize the impact on the Qilian Mountain National Nature Reserve, achieving a harmonious coexistence between construction and ecological preservation [3]