大地测量与地球动力学2026，Vol.46Issue(1)：115-122,130,9.DOI:10.14075/j.jgg.2025.01.591
徐州地震台同场地钻孔应变仪器预报效能对比分析
Comparison of Forecasting Efficiency of Borehole Strain Instruments at the Same Site of Xuzhou Seismic Station
摘要
Abstract
Based on the observational data of two types of borehole strainmeters at Xuzhou seismic sta-tion,we use the R-value test method to calculate and score the forecasting efficiency of trend-breaking anomalies,annual breaking anomalies and rate anomalies recorded by the two instruments.A system-atic comparative analysis of the forecasting efficiency of the two borehole strain instruments at the same site is conducted to clarify their complementarity in earthquake precursor monitoring.The re-sults show that the borehole body strainmeter performs well in the forecasting of trend-breaking a-nomalies and annual breaking anomalies,and is suitable for capturing the earthquake precursor anom-aly signals related to long-term geological tectonic activities.The borehole component strainmeter shows a strong ability in the forecasting of trend-breaking anomalies and rate anomalies,and is more adept at capturing the trend-breaking precursor anomaly signals caused by stress state changes of geo-logical body,and has high sensitivity for the monitoring of rapid changes in regional stress and strain.These findings reveal the efficiency differences of borehole strainmeters in earthquake precursor moni-toring and provide the application focus and optimization direction of the two types of borehole strain-meters in earthquake forecasting.关键词
钻孔应变观测/R值检验方法/前兆异常/预报效能Key words
borehole strain observation/R-value test method/precursor anomaly/forecasting efficiency分类
天文与地球科学引用本文复制引用
郝冉,刘冬冬,高明智,张岑,何斌,董传磊,许炳..徐州地震台同场地钻孔应变仪器预报效能对比分析[J].大地测量与地球动力学,2026,46(1):115-122,130,9.基金项目
中国地震局"三结合"课题(CEA-SJH-202502004) （CEA-SJH-202502004）
江苏省地震局科学基金(202413). （202413）
