Amidst China's aggressive expansion of its high-speed rail network,the intersection of these lines with seismic fault zones has elevated the risk profile for high-speed rail travel.To counteract the potential dang...Amidst China's aggressive expansion of its high-speed rail network,the intersection of these lines with seismic fault zones has elevated the risk profile for high-speed rail travel.To counteract the potential dangers posed by seismic disturbances,China has introduced a comprehensive high-speed railway earthquake early-warning system.This article presents an in-depth examination of this system,encompassing aspects such as its developmental evolution,architectural design,and pivotal technologies.Furthermore,it ventures into the realm of future enhancements and developmental pathways for the system,fusing emergent findings from earthquake early warning research with advancements in artificial intelligence.展开更多
Purpose–The purpose of this study is to introduce the top-level design ideas and the overall architecture of earthquake early-warning system for high speed railways in China,which is based on P-wave earthquake early-...Purpose–The purpose of this study is to introduce the top-level design ideas and the overall architecture of earthquake early-warning system for high speed railways in China,which is based on P-wave earthquake early-warning and multiple ways of rapid treatment.Design/methodology/approach–The paper describes the key technologies that are involved in the development of the system,such as P-wave identification and earthquake early-warning,multi-source seismic information fusion and earthquake emergency treatment technologies.The paper also presents the test results of the system,which show that it has complete functions and its major performance indicators meet the design requirements.Findings–The study demonstrates that the high speed railways earthquake early-warning system serves as an important technical tool for high speed railways to cope with the threat of earthquake to the operation safety.The key technical indicators of the system have excellent performance:The first report time of the P-wave is less than three seconds.From the first arrival of P-wave to the beginning of train braking,the total delay of onboard emergency treatment is 3.63 seconds under 95%probability.The average total delay for power failures triggered by substations is 3.3 seconds.Originality/value–The paper provides a valuable reference for the research and development of earthquake early-warning system for high speed railways in other countries and regions.It also contributes to the earthquake prevention and disaster reduction efforts.展开更多
基金supported by the Science and Technology Development Plan of China State Railway Group Co.,Ltd.(J2022G007)China Academy of Railway Sciences Group Co.,Ltd.(2023YJ103).
文摘Amidst China's aggressive expansion of its high-speed rail network,the intersection of these lines with seismic fault zones has elevated the risk profile for high-speed rail travel.To counteract the potential dangers posed by seismic disturbances,China has introduced a comprehensive high-speed railway earthquake early-warning system.This article presents an in-depth examination of this system,encompassing aspects such as its developmental evolution,architectural design,and pivotal technologies.Furthermore,it ventures into the realm of future enhancements and developmental pathways for the system,fusing emergent findings from earthquake early warning research with advancements in artificial intelligence.
基金This research is supported by the R&D Fund Project of China Academy of Railway Science Corporation Limited[Grant No.2022Y253].
文摘Purpose–The purpose of this study is to introduce the top-level design ideas and the overall architecture of earthquake early-warning system for high speed railways in China,which is based on P-wave earthquake early-warning and multiple ways of rapid treatment.Design/methodology/approach–The paper describes the key technologies that are involved in the development of the system,such as P-wave identification and earthquake early-warning,multi-source seismic information fusion and earthquake emergency treatment technologies.The paper also presents the test results of the system,which show that it has complete functions and its major performance indicators meet the design requirements.Findings–The study demonstrates that the high speed railways earthquake early-warning system serves as an important technical tool for high speed railways to cope with the threat of earthquake to the operation safety.The key technical indicators of the system have excellent performance:The first report time of the P-wave is less than three seconds.From the first arrival of P-wave to the beginning of train braking,the total delay of onboard emergency treatment is 3.63 seconds under 95%probability.The average total delay for power failures triggered by substations is 3.3 seconds.Originality/value–The paper provides a valuable reference for the research and development of earthquake early-warning system for high speed railways in other countries and regions.It also contributes to the earthquake prevention and disaster reduction efforts.
