| 城市群地震灾害风险评估方法的一点探索 |
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| 引用本文： | 姜慧,郭恩栋,林旭川,刘智,卢邦华,刘爱文,张移.城市群地震灾害风险评估方法的一点探索[J].地震学报,2022,44(5):868-880. |
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| 作者姓名： | 姜慧 郭恩栋 林旭川 刘智 卢邦华 刘爱文 张移 |
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| 作者单位： | 1.中国广东深圳 518003 深圳防灾减灾技术研究院 |
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| 基金项目： | 国家自然科学基金联合基金集成项目（U1901602-05）资助 |
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| 摘 要： | 基于粤港澳大湾区地震灾害风险评估的初步成果，分析了湾区城市群地震环境、承灾体分布和场地特点，提出了两种确定地震输入的设定地震原则，即潜在震源区设定地震原则和最大风险设定地震原则，按照这两种原则可以更加准确地进行城市群地震灾害风险评估。在前人工作的基础上，提出了考虑场地条件影响的地震灾害风险表达式，探索了适合三维模拟非一致激励地震动输入的建筑物和生命线工程灾害风险评估方法，提出了建筑物和生命线工程灾害风险评估中考虑场地影响的思路，为客观地评估城市群地震灾害和损失风险提出了可参考的建议。
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| 关 键 词： | 城市群 粤港澳大湾区 设定地震 地震灾害 场地效应 风险评估 |
| 收稿时间： | 2022-06-09 |
A new exploration of the risk assessment method of earthquake disasters in urban agglomerations:Taking the Guangdong-Hong Kong-Macao Greater Bay Area as an example |
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| Institution: | 1.Shenzhen Academy of Disaster Prevention and Reduction，Guangdong Shenzhen 518003，China2.Guangdong Earthquake Agency，Guangzhou 510070，China3.Institute of Engineering Mechanics，China Earthquake Administration，Harbin 150090，China4.Key Laboratory of Earthquake Disaster Mitigation，Ministry of Emergency Management，Harbin 150090，China5.Institute of Geophysics，China Earthquake Administration，Beijing 100081，China |
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| Abstract: | Based on the preliminary research results of earthquake disaster risk assessment in the Guangdong-Hong Kong-Macao Greater Bay Area, the earthquake environment, distribution of disaster-bearing bodies and site characteristics of urban agglomerations in the bay area are analyzed, and two scenario earthquake principles for determining the earthquake input are proposed, namely, setting earthquakes in potential source areas principle and maximum risk setting seismic principle, which can make risk assessment of earthquake disasters in urban agglomerations more accurate. On the basis of previous studies, the expression of earthquake disaster risk considering the influence of site conditions is proposed. The disaster risk assessment method of buildings and lifeline engineering suitable for 3D simulation of seismic input within non-uniform excitation is explored, and the idea of considering the influence of site in the disaster risk assessment of buildings and lifeline engineering is proposed. Some valuable suggestions are put forward to objectively evaluate the earthquake disaster and loss risk of urban agglomeration. |
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