地球与行星物理论评（中英文）2024，Vol.55Issue(4)：440-452,13.DOI:10.19975/j.dqyxx.2023-049
泸定地震大渡河区域灾害调查及格林函数库应用可行性探讨
The regional disaster investigation of Dadu River of Luding earthquake and feasibility study of Green's function database application
摘要
Abstract
On September 5,2022,an MS6.8 earthquake occurred in Luding County,Ganzi Prefecture,Sichuan Province,China,causing extensive damage.The scientific expedition team of the Institute of Geophysics of the China Earthquake Administration investigated the damage caused by the earthquake in several terrace hydropower stations on the main stream of the Dadu River and nearby areas.It was determined that the cascade power stations ware less affected by the earthquake and that normal operation was not affected.Using the empirical Green's func-tion method and considering the uncertainty characteristics of the seismic source parameters,the ground motion ac-celeration time histories were estimated for a reasonable range of three typical locations in the seismic region:the Shimian Caluo area(termed location 1),the Xingkang Expressway bridge area in the Dadu River basin(termed loc-ation 2),and the area near the historical seismic ancient landslides(Mogangling,termed location 3).The prelimin-ary results showed that:buildings at locations 1 and 3 may be destroyed by an earthquake of this strength,whereas the bridges in location 2 are less likely to be destroyed.Here,combining the results of the disaster investigation,the seismic network built by the key engineering project,and the results of the rapid estimation of the ground motion at typical locations,we consider the feasibility of applying the Green's function library based on the waveforms of ac-tual small earthquakes in key project areas.关键词
泸定MS6.8地震/灾害调查/大渡河梯级水电站/格林函数数据库/地震动评估Key words
Luding MS6.8 earthquake/disaster investigation/Dadu River terrace hydropower stations/empiri-cal Green's function database/ground motion simulation分类
地球科学引用本文复制引用
黄亭,李宗超,唐方头,孙吉泽,付长华,王晓辉,纪志伟,高孟潭,叶坤..泸定地震大渡河区域灾害调查及格林函数库应用可行性探讨[J].地球与行星物理论评（中英文）,2024,55(4):440-452,13.基金项目
国家自然科学基金青年基金资助项目(42104053) （42104053）
中国地震局地球物理研究所所长基金项目(DQJB22R30,DQJB22B21)Supported by the National Natural Science Foundation for Young Scientists of China(Grant No.42104053),and the Director's Fund Programme,Institute of Geophysics,China Earthquake Administration(Grant Nos.DQJB22R30,DQJB22B21) （DQJB22R30,DQJB22B21）
