[1]陈 刚,张景发,李茂峰,等.基于地震易损性分析的高压输电塔震害快速评估——以天广直流超高压输电工程为例[J].华南地震,2024,(04):87-95.[doi:10.13512/j.hndz.2024.04.10]
 CHEN Gang,ZHANG Jingfa,LI Maofeng,et al.Rapid Assessment of Seismic Damage to High-Voltage Transmission Towers Based on Seismic Vulnerability Analysis:A Case Study of Tianguang DC Ultra-High Voltage Transmission Project[J].,2024,(04):87-95.[doi:10.13512/j.hndz.2024.04.10]
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基于地震易损性分析的高压输电塔震害快速评估——以天广直流超高压输电工程为例()
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华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2024年04期
页码:
87-95
栏目:
地震与地质灾害
出版日期:
2024-12-30

文章信息/Info

Title:
Rapid Assessment of Seismic Damage to High-Voltage Transmission Towers Based on Seismic Vulnerability Analysis:A Case Study of Tianguang DC Ultra-High Voltage Transmission Project
文章编号:
1001-8662(2024)04-0087-09
作者:
陈 刚1张景发2李茂峰1韩 伟1岑 关1覃宏坚1许忠友1申文豪23
1.中国南方电网有限责任公司超高压输电公司百色局,广西 百色 533000;2.应急管理部国家自然灾害防治研究院,北京 100085;3.上海佘山地球物理国家野外科学观测研究站,上海 201602
Author(s):
CHEN Gang1ZHANG Jingfa2LI Maofeng1HAN Wei1CEN Guan1QIN Hongjian1XU Zhongyou1SHEN Wenhao23
1.Baise Bureau of Ultra High Voltage Transmission Company of China Southern Power Grid Co.,Ltd.,Baise 533000, China;2.National Institute of Natural Hazards , Ministry of Emergency Management , Beijing 100085, China;3.Shanghai Sheshan National Geophysical Observatory , Shanghai 201602, China
关键词:
地震输电塔震害评估地震烈度地震易损性
Keywords:
EarthquakeTransmission towerSeismic damage assessmentSeismic intensitySeismic vulnera?bility
分类号:
P315.9;TM7
DOI:
10.13512/j.hndz.2024.04.10
文献标志码:
A
摘要:
高压输电塔是输电网体系重要组成部分,强震发生后对输电塔震害的快速准确评估是电力应急处置、资源调配和指挥决策的重要前提。通过提出了一种基于强地震动参数快速生成和地震易损性分析的输电塔震害快速评估方法,并以天广500kV直流高压输电线隆林—百色段为研究对象,选取地震危险性较高的右江断裂历史地震和设定地震作为发震事件,计算输电塔地震破坏指数并给出各电塔最终破坏等级分布。研究结果表明:利用地表以下30m平均剪切波波速进行强地震动参数场地校正可以有效提高烈度模拟准确度。输电塔震害模拟结果表明,强震对高压输电塔产生损伤主要发生在Ⅵ度及以上烈度区内,因此强震发生后应重点关注Ⅵ度及以上烈度区内输电塔灾损情况。此研究提出的输电塔震害应急评估方法可为输电网震害评估、震后救援及电力恢复提供决策辅助与技术支撑。
Abstract:
High-voltage transmission towers are important components of the power transmission network system. The rapid and accurate assessment of the seismic damage to transmission towers after a strong earthquake is an im?portant prerequisite for emergency response,resource allocation,and command decision-making. This article pro?posed a fast evaluation method for seismic damage of transmission towers based on the rapid generation of strong ground motion parameters and seismic vulnerability analysis. The Longlin-Baise section of the Tianguang 500 kV direct current(DC)high-voltage transmission line was taken as the research object. The historical earthquakes and scenario earthquakes of Youjiang River Fault with higher seismic risks were selected as the seismic events to calcu?late the seismic damage index of transmission towers and finally provide the distribution of seismic damage levels for each tower. The research results indicate that using the average shear wave velocity of 30 meters below the sur?face for strong ground motion parameter correction can effectively improve the accuracy of intensity simulation. The simulation results of seismic damage to transmission towers show that the damage caused by strong earthquakes to high-voltage transmission towers mainly occurs in areas of intensity Ⅵand above. Therefore,after a strong earth?quake occurs,special attention should be paid to transmission towers in areas of intensityⅥand above. The emer?gency assessment method for seismic damage to transmission towers proposed in this article can provide decision-making assistance and technical support for seismic damage assessment of power transmission network systems, post-earthquake rescue,and power restoration.

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备注/Memo

备注/Memo:
收稿日期:2024-06-06
基金项目:上海佘山地球物理国家野外科学观测研究站开放基金(SSOP202108)
作者简介:陈刚(1987-),男,高级工程师,主要从事输电杆塔震害数值仿真研究。E-mail:277233162@qq.com
更新日期/Last Update: 2024-12-30