Abstract: With the maturity of China's ultra-high voltage technology system, a large number of transmission lines have been constructed one after another. Many of these routes are located in mountainous areas, facing difficulties in transportation, low lifting efficiency, high safety risks in high-altitude operations, and difficulties in construction during the rainy season. By analyzing the risks and difficulties faced by a certain project's two tower foundation construction and assembly tower construction process, including difficulties in transportation on mountainous roads and rainy seasons, narrow construction work surfaces, high risk factors for high-altitude operations, lightning and mechanical injuries, and hidden dangers of electric shock, a special construction safety plan for ultra-high towers was proposed. Targeted safety protection measures were proposed from personnel protection, mechanical protection, foundation construction protection, on-site protection, and environmental protection, effectively ensuring the safety of operators.

Key words: ultra high span tower, single arm holding pole, tower body assembly, tower body lightning protection

摘要： 随着我国特高压技术体系的成熟,大量输电线路相继建设。此类线路很多位于山区,面临山区运输困难、吊装效率低、高空作业安全风险高、雨季施工困难等施工难题和安全隐患。通过分析研究某工程两基杆塔在基础施工和组立杆塔施工过程面临的风险和困境:山区道路和雨季运输困难、施工作业面狭小、高空作业危险系数大、雷击和机械伤害以及触电隐患等,提出了针对超高杆塔的施工安全对策,从人员防护、机械防护、基础施工防护、现场防护和环境防护等方面给出了针对性的安全防护措施,有效保证了作业人员的安全。

关键词: 超高跨塔, 单动臂抱杆, 塔身组立, 塔身防雷