大量高铁地震事件的属性体提取与特性分析
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摘要
列车在高铁上运行能够产生大量的高铁地震事件,这些地震事件既包含了作为震源的列车本身的结构信息,也蕴含了高铁线路的地质环境信息.本文提出了一种频率-空间-时间(FXT)属性描述大量高铁地震事件之间的关联.在FXT属性上,高铁地震信号之间的关联表征为在频率坐标轴F上相互对齐、在空间位置坐标轴X和事件到达时间坐标轴T上连续变化的分立谱线.本文对课题组在深圳为期两天的观测采集得到的4500余条高铁地震信号进行了FXT属性的提取,并对FXT属性进行了统计特性的分析:方差分析表明,高铁线路的地质环境的变化对高铁地震信号特征的影响大于不同列车的结构差异对高铁地震信号特征的影响;聚类分析表明,高铁地震信号的特征按接收点位置能够无监督地聚类为和高铁线路途经地质环境相关联的不同类别.通过上述分析表明,高铁地震信号中蕴含着丰富的可解释的高铁运行地质环境信息,具备对高铁列车运行安全进行监测的潜力.
Trains on high-speed-railway generate plenty of seismic events,which not only include information related to the body of trains themselves,but also involve geological environmental information along the railway.This article proposes a frequency-space-time(FXT)attribution to describe the relationship between multiple high-speed-train seismic events.The relationship between events are described by discrete spectral lines on the proposed attribution,which register along frequency axis,and change continuously along space axis and time axis.This article extracts FXTattribution from 4500 high-speed-train seismic signals acquired in Shenzhen area,and then takes statistical analysis on the extracted attribution.The variance analysis proves that the geological environmental changes around the railway is the main fact to effect the features of seismic signals,compared with high-speed-train body structural changes.The clustering analysis proves that the features of high-speed-train signals at different receiving positions cluster unsupervised as classes related to geological environments along railway.The analysis explains the potentiality of security monitoring for trains with the application of high-speed-train seismic signals,which contain abundant and interpretable geological environmental information.
Trains on high-speed-railway generate plenty of seismic events,which not only include information related to the body of trains themselves,but also involve geological environmental information along the railway.This article proposes a frequency-space-time(FXT)attribution to describe the relationship between multiple high-speed-train seismic events.The relationship between events are described by discrete spectral lines on the proposed attribution,which register along frequency axis,and change continuously along space axis and time axis.This article extracts FXTattribution from 4500 high-speed-train seismic signals acquired in Shenzhen area,and then takes statistical analysis on the extracted attribution.The variance analysis proves that the geological environmental changes around the railway is the main fact to effect the features of seismic signals,compared with high-speed-train body structural changes.The clustering analysis proves that the features of high-speed-train signals at different receiving positions cluster unsupervised as classes related to geological environments along railway.The analysis explains the potentiality of security monitoring for trains with the application of high-speed-train seismic signals,which contain abundant and interpretable geological environmental information.
引文
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Li L,Peng W T,Li G,et al.2004.Vibration induced by trains:a new seismic source and relative test.Chinese Journal of Geophysics(in Chinese),47(4):680-684.
Li Z M,Gou X T,Qin N,et al.2015.Vibration monitoring signals frequency feature of high speed train.Instrument Technique and Sensor(in Chinese),(5):99-103.
Xu S H,Guo J,Li P P,et al.2017.Observation and analysis of ground vibrations caused by the Beijing-Tianjin high-speed train running.Progress in Geophysics(in Chinese),32(1):421-425,doi:10.6038/pg20170160.
Yao J C,Yang Y Q,Wang L.2010.The damage alarming method for bridge based on Hilbert-Huang transform.China Railway Science(in Chinese),31(4):46-52.
Zhao H W,Ding Y L,Li A Q,et al.2018.Research on safety early warning of vehicle-bridge vibration for long-span multi-track steel-truss arch bridge of high speed railway.China Railway Science(in Chinese),39(2):28-36.
丁幼亮,王超,王景全等.2016.高速铁路钢桁拱桥吊杆振动长期监测与分析.东南大学学报(自然科学版),46(4):848-852.
李丽,彭文涛,李纲等.2004.可作为新震源的列车振动及实验研究.地球物理学报,47(4):680-684.
李智敏,苟先太,秦娜等.2015.高速列车振动监测信号的频率特征.仪表技术与传感器,(5):99-103.
徐善辉,郭建,李培培等.2017.京津高铁列车运行引起的地表振动观测与分析.地球物理学进展,32(1):421-425,doi:10.6038/pg20170160.
姚京川,杨宜谦,王澜.2010.基于Hilbert-Huang变换的桥梁损伤预警.中国铁道科学,31(4):46-52.
赵瀚玮,丁幼亮,李爱群等.2018.大跨多线高速铁路钢桁拱桥车---桥振动安全预警研究.中国铁道科学,39(2):28-36.
Ding Y L,Wang C,Wang J Q,et al.2016.Long-term monitoring and analysis of hanger vibration on high-speed railway steel truss arch bridge.Journal of Southeast University(Natural Science Edition)(in Chinese),46(4):848-852.
Fuchs F,Bokelmann G,The AlpArray Working Group.2018.Equidistant spectral lines in train vibrations.Seismological Research Letters,89(1):56-66.
Li L,Peng W T,Li G,et al.2004.Vibration induced by trains:a new seismic source and relative test.Chinese Journal of Geophysics(in Chinese),47(4):680-684.
Li Z M,Gou X T,Qin N,et al.2015.Vibration monitoring signals frequency feature of high speed train.Instrument Technique and Sensor(in Chinese),(5):99-103.
Xu S H,Guo J,Li P P,et al.2017.Observation and analysis of ground vibrations caused by the Beijing-Tianjin high-speed train running.Progress in Geophysics(in Chinese),32(1):421-425,doi:10.6038/pg20170160.
Yao J C,Yang Y Q,Wang L.2010.The damage alarming method for bridge based on Hilbert-Huang transform.China Railway Science(in Chinese),31(4):46-52.
Zhao H W,Ding Y L,Li A Q,et al.2018.Research on safety early warning of vehicle-bridge vibration for long-span multi-track steel-truss arch bridge of high speed railway.China Railway Science(in Chinese),39(2):28-36.
丁幼亮,王超,王景全等.2016.高速铁路钢桁拱桥吊杆振动长期监测与分析.东南大学学报(自然科学版),46(4):848-852.
李丽,彭文涛,李纲等.2004.可作为新震源的列车振动及实验研究.地球物理学报,47(4):680-684.
李智敏,苟先太,秦娜等.2015.高速列车振动监测信号的频率特征.仪表技术与传感器,(5):99-103.
徐善辉,郭建,李培培等.2017.京津高铁列车运行引起的地表振动观测与分析.地球物理学进展,32(1):421-425,doi:10.6038/pg20170160.
姚京川,杨宜谦,王澜.2010.基于Hilbert-Huang变换的桥梁损伤预警.中国铁道科学,31(4):46-52.
赵瀚玮,丁幼亮,李爱群等.2018.大跨多线高速铁路钢桁拱桥车---桥振动安全预警研究.中国铁道科学,39(2):28-36.