地震灾害事件驱动的输电杆塔震害自动评估系统研究

Research on Automatic Assessment System for Earthquake Damage of Transmission Towers Driven by Earthquake Disaster Events

摘要:

输电杆塔是电网系统重要的组成部分。地震是一种在极短时间内释放巨大能量的自然灾害,对输电杆塔的安全造成巨大破坏。震后第一时间开展输电杆塔震害应急评估,可为输电杆塔巡查修复提供决策支撑。针对输电杆塔震害应急评估响应效率低、巡检目标不明确等问题,构建了基于地震灾害事件驱动的输电杆塔震害自动评估系统。本系统底层基于GIS (Geographic Information System) 技术,采用B/S (Browser/Server) 架构形式,利用网络爬虫技术自动获取地震发震信息; 以地形和场地校正后的峰值加速度 (Peak Ground Acceleration,PGA) 为输入,结合输电杆塔地震易损性曲线,快速自动化地实现输电杆塔震害程度评估并实时发布。本系统满足了输电杆塔震害应急评估需求,为“是否巡查”提供决策参考,可有效提高电网应急决策的精准化程度和反应效率,优化输电线路杆塔震害应急处置机制和应急处置策略。

Abstract:

Transmission towers are critical components of the power grid infrastructure. Earthquakes,as sudden and high-energy natural disasters,can cause substantial damage to these structures. Rapid post-earthquake assessment of transmission tower damage is essential for guiding inspection and repair efforts. To address the challenges of low response efficiency and unclear inspection priorities in damage assessment,this paper proposes an automatic seismic damage assessment system for transmission towers,developed in the context of earthquake disaster events. The system is built on a browser/server (B/S) architecture and leverages Geographic Information System (GIS) technology alongside web crawling techniques to automatically retrieve earthquake information. By integrating terrain- and site-corrected peak ground acceleration (PGA) data with seismic vulnerability curves for transmission towers,the system enables rapid,automated evaluation and real-time dissemination of damage and loss estimates. This approach meets the urgent needs of emergency assessment following strong earthquakes,supports informed decision-making regarding inspection necessity,enhances the accuracy and efficiency of emergency response in power grid management,and contributes to the optimization of transmission tower emergency response mechanisms and strategies.