[1]熊 成,叶秀薇,王力伟,等.基于噪声HVSR方法的粤港澳大湾区VS30估算研究[J].华南地震,2026,46(02):29-35.[doi:10.13512/j.hndz.2026.02.04]
XIONG Cheng,YE Xiuwei,WANG Liwei,et al.VS30 Estimation in the Guangdong-Hong Kong-Macau Greater Bay Area Based on the Noise HVSR Method[J].,2026,46(02):29-35.[doi:10.13512/j.hndz.2026.02.04]
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基于噪声HVSR方法的粤港澳大湾区VS30估算研究(
)
华南地震[ISSN:1006-6977/CN:61-1281/TN]
- 卷:
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46
- 期数:
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2026年02期
- 页码:
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29-35
- 栏目:
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地震科学研究
- 出版日期:
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2026-03-20
文章信息/Info
- Title:
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VS30 Estimation in the Guangdong-Hong Kong-Macau Greater Bay Area Based on the Noise HVSR Method
- 文章编号:
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1001-8662(2026)02-0029-07
- 作者:
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熊 成1; 2; 叶秀薇1; 2; 王力伟1; 2; 张严心1; 2; 曾晓燕1; 2
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1.广东省地震局,广州 510070;2.中国地震局地震监测与减灾技术重点实验室,广州 510070
- Author(s):
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XIONG Cheng1; 2; YE Xiuwei1; 2; WANG Liwei1; 2; ZHANG Yanxin1; 2; ZENG Xiaoyan1; 2
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1.Guangdong Earthquake Agency, Guangzhou 510070, China;2.Key Laboratory of Earthquake Monitoring and Disaster Mitigation Technology , CEA , Guangzhou 510070, China
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- 关键词:
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粤港澳大湾区; VS30; HVSR; 密集台阵; 场地放大效应
- Keywords:
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Guangdong-Hong Kong-Macao Greater Bay Area; VS30; HVSR; Dense array; Site amplification ef?fect
- 分类号:
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P631.4
- DOI:
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10.13512/j.hndz.2026.02.04
- 文献标志码:
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A
- 摘要:
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国际上许多地震规范采用地下前30m的等效剪切波速度(VS30)作为关键参数。然而,由于粤港澳大湾区场地钻孔资料不够完善,造成其VS30的分辨率较低,准确性不足。为此,采用基于单台记录的噪声水平与垂直谱比(HVSR)方法来测量VS30。基于6214个测点(台间距约750m)的地脉动观测数据,此研究采用HVSR方法构建了粤港澳大湾区高分辨率VS30分布。研究结果与地表地形较为吻合,大部分地区的VS30值低于360m/s,尤其是在珠江三角洲平原VS30值最低。相对而言,较高的VS30值(>360m/s)则主要分布在帽峰山、白云山、番禺地台和大岭山等山地区域。此研究为粤港澳大湾区的城市规划和抗震设防提供了重要的科学基础资料。研究表明,HVSR技术作为一种快速有效的估算VS30的方法,适用于缺乏详细场地钻孔资料的地区,为地震工程和风险评估提供了有价值的信息。
- Abstract:
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Many seismic codes worldwide adopt the equivalent shear wave velocity(VS30)in the top 30 m of the ground as a key parameter. However,due to the lack of adequate site boring data in the Guangdong-Hong Kong-Macao Greater Bay Area,the resolution and accuracy of the VS30 are relatively low. To address this issue,this pa?per employs the Horizontal-to-Vertical Spectral Ratio(HVSR)method based on single-station records to measure VS30. By utilizing ground motion observation records from over 6200 points with an average distance of about 750 m between stations, high-resolution VS30 distribution results for the Greater Bay Area were obtained by using the HVSR method. The results align well with the surface topography,showing that most areas have VS30 values below 360 m/s,with the lowest values found in the Pearl River Delta plain. In contrast,higher VS30 values(>360 m/s) are predominantly distributed in mountainous regions,such as Maofeng Mountain,Baiyun Mountain,Panyu Ta?bleland, and Daling Mountain. This study provides important scientific foundational data for urban planning and seismic fortification in the Guangdong-Hong Kong-Macao Greater Bay Area. Overall,the HVSR technique serves as an effective method for estimating VS30,making it suitable for areas lacking detailed site boring data. This can provide valuable information for earthquake engineering and risk assessment.
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备注/Memo
- 备注/Memo:
-
收稿日期:2025-02-26
基金项目:广东省科技计划项目(2023A1111120028);地震科技星火计划青年项目(XH24031YA)联合资助。
作者简介:熊成(1993-),男,工程师,主要从事地震监测及构造地球物理研究。E-mail:xiongcheng15@mails.ucas.ac.cn
通信作者:叶秀薇(1970-),女,研究员,主要从事壳幔结构及震源构造研究。E-mail:1424201562@qq.com
更新日期/Last Update:
2026-03-20