[1]杨黎薇,林国良,邱志刚.2012年彝良Ms5.7、Ms5.6地震场地地震动反应[J].世界地震工程,2018,34(02):089-95.
 YANG Liwei,LIN Guoliang,QIU Zhigang.Site effects research on Yiliang Ms5.7 and Ms5.6 earthquake in 2012[J].,2018,34(02):089-95.
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2012年彝良Ms5.7、Ms5.6地震场地地震动反应
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《世界地震工程》[ISSN:/CN:]

卷:
34
期数:
2018年02期
页码:
089-95
栏目:
出版日期:
2018-11-30

文章信息/Info

Title:
Site effects research on Yiliang Ms5.7 and Ms5.6 earthquake in 2012
作者:
杨黎薇1 林国良1 邱志刚2
1. 云南省地震局, 云南 昆明 650224;
2. 昆明学院, 云南 昆明 650214
Author(s):
YANG Liwei1 LIN Guoliang1 QIU Zhigang2
1. Yunnan Earthquake Administration, Kunming 650224, China;
2. Kunming University, Kunming 650214, China
关键词:
标准谱比法烈度异常放大作用
Keywords:
standard spectral ratio methodintensity anomalyamplified action
分类号:
P315.9
摘要:
2012年9月7日云南昭通彝良发生了Ms5.和、Ms5.6级两次地震,此次地震引发了极其严重的滑坡和崩塌等地震地质灾害,同时地震波放大效应还引起高烈度异常区。利用彝良地震烈度圈内6个台站记录到的主震加速度时程,通过截取S波窗,采用标准谱比法和水平垂直谱比法研究其场地地震动反应。结果表明:两种方法能给出较为一致的谱比曲线和卓越频率,但场地反应数值差异较大,标准谱比法的结果受到参考台站自身场地反应的影响;靖安台的软弱土层对地震动的放大作用较为显著,是造成烈度异常的主要原因。
Abstract:
Two earthquakes of Ms5.7 and Ms5.6 struck the Yiliang, Zhaotong, on September 7, 2012. Serious geological disaster like landslide, collapse were triggered and the high intensity anomaly area was caused by the amplification effect. By truncating the S wave window form major earthquake acceleration time history recorded by 6 stations in Yiliang, the site effect was researched through standard spectral ratio method and horizontal-vertical spectral ratio method. The results shows that:the two methods can provide consistent spectral ratio curve and predominant frequency. However, the site effects differ largely. The results of standard spectral ratio method are affected by the site effects of the reference station. The site amplification effects of soft soil at Jingan station are obvious, which mainly causes the intensity anomaly.

参考文献/References:

[1] CAMPILLO M, GARIEL J C, AKI K, et al. Destructive strong ground motion in Mexico City; source, path, and site effects during great 1985 Michoacan earthquake[J]. Bull. Seism. Soc. Am, 1989, 79:1718-1734.
[2] HANKS TC, BRADY AG. The Loma Prieta earthquake, ground motion, and damage in Oakland, Treasure Island, and San Francisco[J]. Bull. Seism. Soc. Am, 1991, 81:2019-2047.
[3] 高孟潭,陈学良,俞言祥, 等. "5·12"汶川8.0级地震汉源烈度异常机理的初步探讨[J]. 震灾防御技术,2008,3(3):216-223. GAO Mengtan, CHEN Xueliang, YU Yanxing, et al. Preliminary discussion on intensity anomalous mechanism of Hanyuan Town in 5.12 Wenchuan earthquake[J]. Technology for Earthquake Disaster Prevention, 2008,3(3):216-223. (in Chinese)
[4] 薄景山,齐文浩,刘红帅, 等. 汶川特大地震汉源烈度异常原因的初步分析[J]. 地震工程与工程振动,2009, 29(6):53-64. BO Jingshan, QI Wenhao, LIU Hongshuai, et al. Abnormality of seismic intensity in Hanyuan during Wenchuan earthquake[J]. Earthquake Engineering and Engineering Vibration, 2009, 29(6):53-64. (in Chinese)
[5] 李平. 汶川特大地震汉源震害异常研究[D].哈尔滨:中国地震局工程力学研究所,2013.
[6] 朱荣欢,苏有锦. 用H/V谱比法计算云南区域数字地震台站的场地响应[J]. 地震研究,2007, 30(3):248-252. ZHU Ronghuan, SU Youjin. Site response of Yunnan regional digital seismic stations calculated with H/V spectral ratios method[J], Journal of Seismological Research. 2007, 30(3):248-252. (in Chinese)
[7] 章文波,谢礼立,郭明珠. 利用强震记录分析场地的地震反应[J].地震学报,2001,23(5):604-614. ZHANG Wenbo, XIE Lili, GUO Mingzhu. Estimation on site-amplification from different methods using strong motion data obtained in Tangshan, China[J]. Acta Seismologica Sinica, 2001, 23(5):604-614. (in Chinese)
[8] BORCHERDT R D. Effects of local geology on ground motion near San Francisco bay[J]. Bull. Seism. Soc. Am, 1970, 60:29-61.
[9] NAKAMURA Y. A method for dynamic characteristics estimation of subsurface using microtremor on the ground surface[J]. QR of RTRI, 1989, 30(1):25-33.
[10] 欧阳行艳,章文波,张有兵. 利用集集地震余震记录分析场地地震动反应[J]. 中国科学院研究生院学报,2009,26(3):373-382. OUYANG Xingyan, ZHANG Wenbo, ZHANG Youbing. Estimation on site effect from different techniques using aftershocks of Chi-Chi earthquake[J]. Journal of the Graduate School of the Chinese Academy of Sciences, 2009, 26(3):373-382. (in Chinese)
[11] 周桂华,非明伦,张彦琪, 等. 彝良5.7、5.6级地震烈度分布及烈度异常区震害特征初步分析[J]. 地震研究,2013,36(3):364-371. ZHOU Guihua, FEI Minglun, ZHANG Yanqi, et al. Analysis on intensity distribution and seismic disaster characteristic in intensity abnormal areas of Yiliang Ms5.7, 5.6 Earthquakes[J]. Journal of Seismological Research, 2013,36(3):364-371. (in Chinese)
[12] 崔建文,李世成,高东. 云南分区地震动衰减关系?[J]. 地震研究,2006,9(4):386-391. CUI Jianwen, LI Shicheng, GAO Dong, et al. Ground motion attenution relation in the Yunnan area[J]. Journal of Seismological Research, 2006,9(4):386-391. (in Chinese)
[13] 卢滔,周正华,周雍年, 等. 关于Nakamura方法有效性的讨论[J]. 地震工程与工程振动,2006, 26(1):43-48. LU Tao, ZHOU Zhenghua, ZHOU Yongnian, et al. Discussion on validation of Nakamura’s technique[J]. Earthquake Engineering and Engineering Vibration, 2006, 26(1):43-48. (in Chinese)

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备注/Memo

备注/Memo:
收稿日期:2017-07-31;改回日期:2017-12-05。
基金项目:国家自然科学基金资助项目(3092),云南省科技计划项目(2017FD088),昆明学院校级科研项目(XJL15007)
作者简介:杨黎薇(1984-),女,工程师,硕士,主要从事强震动观测与应用研究.E-mail:156531726@qq.com
更新日期/Last Update: 1900-01-01