• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Liu, Yanqiong (Liu, Yanqiong.) | Zhao, Qingxu (Zhao, Qingxu.) | Wang, Yanwei (Wang, Yanwei.)

收录:

Scopus SCIE

摘要:

Rapid and accurate prediction of peak ground acceleration (PGA) is an important basis for determining seismic damage through on-site earthquake early warning (EEW). The current on-site EEW uses the feature parameters of the first arrival P-wave to predict PGA, but the selection of these feature parameters is limited by human experience, which limits the accuracy and timeliness of predicting peak ground acceleration (PGA). Therefore, an end-to-end deep learning model is proposed for predicting PGA (DLPGA) based on convolutional neural networks (CNNs). In DLPGA, the vertical initial arrival 3-6 s seismic wave from a single station is used as input, and PGA is used as output. Features are automatically extracted through a multilayer CNN to achieve rapid PGA prediction. The DLPGA is trained, verified, and tested using Japanese seismic records. It is shown that compared to the widely used peak displacement (Pd) method, the correlation coefficient of DLPGA for predicting PGA has increased by 12-23%, the standard deviation of error has decreased by 22-25%, and the error mean has decreased by 6.92-19.66% with the initial 3-6 s seismic waves. In particular, the accuracy of DLPGA for predicting PGA with the initial 3 s seismic wave is better than that of Pd for predicting PGA with the initial 6 s seismic wave. In addition, using the generalization test of Chilean seismic records, it is found that DLPGA has better generalization ability than Pd, and the accuracy of distinguishing ground motion destructiveness is improved by 35-150%. These results confirm that DLPGA has significant accuracy and timeliness advantages over artificially defined feature parameters in predicting PGA, which can greatly improve the effect of on-site EEW in judging the destructiveness of ground motion.

关键词:

Deep learning Convolution neural network Ground motion On-site earthquake early warning Peak ground acceleration

作者机构:

  • [ 1 ] [Liu, Yanqiong]China Earthquake Network Ctr, Beijing, Peoples R China
  • [ 2 ] [Zhao, Qingxu]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, China Minist Educ, Beijing, Peoples R China
  • [ 3 ] [Wang, Yanwei]Guilin Univ Technol, Guangxi Key Lab Geomech & Geotech Engn, Guilin, Peoples R China

通讯作者信息:

  • [Zhao, Qingxu]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, China Minist Educ, Beijing, Peoples R China;;[Wang, Yanwei]Guilin Univ Technol, Guangxi Key Lab Geomech & Geotech Engn, Guilin, Peoples R China

查看成果更多字段

相关关键词:

相关文章:

来源 :

SCIENTIFIC REPORTS

ISSN: 2045-2322

年份: 2024

期: 1

卷: 14

4 . 6 0 0

JCR@2022

被引次数:

WoS核心集被引频次:

SCOPUS被引频次: 12

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 0

归属院系:

在线人数/总访问数:501/4984759
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司