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[1]张照鹏,荣棉水,卢 滔,等.HVSR谱比法应用于强震数据时基本假定合理性讨论*[J].地震研究,2019,42(04):538-545.
 ZHANG Zhaopeng,RONG Mianshui,LU Tao,et al.Discussion on Rationality of Basic Assumptions When Applying HVSR Method to Strong Earthquake Data[J].Journal of Seismological Research,2019,42(04):538-545.
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HVSR谱比法应用于强震数据时基本假定合理性讨论*(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
42
期数:
2019年04期
页码:
538-545
栏目:
出版日期:
2019-12-15

文章信息/Info

Title:
Discussion on Rationality of Basic Assumptions When Applying HVSR Method to Strong Earthquake Data
作者:
张照鹏1荣棉水2卢 滔1李红光3
(1.防灾科技学院,河北 三河 065201; 2.中国地震局地壳应力研究所 北京100085; 3.中国地震应急搜救中心工程勘测部,北京 100049)
Author(s):
ZHANG Zhaopeng1RONG Mianshui2LU Tao1LI Hongguang3
(1.Institute of Disaster Prevention, Sanhe 065201, Hebei,China)(2.Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085,China)(3. Engineering Survey Department, National Earthquake Response Support Service, Beijing 100049,China)
关键词:
HVSR谱比法 强震观测 传递函数
Keywords:
horizontal-to-vertical spectral ratio(HVSR) strong earthquake observation transfer function
分类号:
P315.91
DOI:
-
摘要:
采用日本KiK-net台网中9个台站的实测场地模型及多个地震的强震观测记录等数据,对HVSR方法应用于强震数据时“基岩处水平-竖向谱比为1”的假定进行了讨论,并探讨了利用不同系数计算场地水平传递函数TFH的差异,最后对表征不同TFH差异的系数进行了相关性分析。结果表明:强震观测数据揭示的基岩内水平-竖向谱比不一定为1,仅在某一频率范围内可以视为一个常数; 表征用不同TFH差异的系数C取为1〖JB<1/〗(2αBB)1/2时,计算得到的水平向传递函数与实际观测得到的水平向经验传递函数一致性较好; HVSRB与1〖JB<1/〗(2αBB)1/2在所考虑的频率范围内存在一定的弱相关性。
Abstract:
Firstly, using the measured data of 9 stations in the Japan KiK-net network and the strong earthquake observation records of several earthquakes, we discussed the assumption that ‘the horizontal-vertical spectral ratio of bedrock is 1' when HVSR method is applied to strong earthquake data. Secondly, on this basis, we calculated the differences between the TFH of the site horizontal transfer function by using different coefficients. Finally, the correlation coefficients of the TFH differences calculated by different formulas are analyzed. The results show that the horizontal-to-vertical spectral ratio in the bedrock revealed by the strong earthquake observation data is not necessarily 1, and can be regarded as a constant only in a certain frequency range. When the coefficient C which is used to estimate the difference of TFH with different formulas is taken as 1/(2αBB)1/2, the theoretically calculated horizontal transfer function is in good agreement with the actual observed horizontal transfer function. There is a certain weak correlation between HVSRB and(2αBB)1/2 in the frequency range considered.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-08-29
基金项目:中央高校基本科研业务费(ZY20180305)、国家重点研发计划项目(2017YFC1500403)、国家自然科学基金项目(41504043)和北京市自然科学基金项目(8182056)联合资助.

更新日期/Last Update: 2019-12-15