摘要
对大蜀山地震台TJ-II钻孔体应变日常形态、常见干扰、映震效应进行分析,结果显示:大蜀山台体应变资料受水位、降雨、气压影响显著。在其他干扰较小的情况下,体应变和水位相关程度最高,相关系数达0.9以上,水位干扰系数最高可达10.13×10-9/cm。体应变仪地震波形记录较好,能清晰地记录到全球7级以上,全国6级以上地震波形;而目前资料未发现明显的前兆异常。
The paper analyzes the daily form, common interference and response to earthquake of TJ-II borehole body strain in Dashushan seismic station. The results show that it is significantly influenced by rainfall, water level and pressure. If other interference is weak, body strain is highly correlated with water level with the correlation coefficient above 0.9 and the highest interference coefficient of water level 10.13 ×10^-9/cm. The body strain can record seismic wave well which can clearly record waveform of earthquakes with M ≥7 in the world and M≥6 in China. No obvious precursor anomaly is found.
出处
《华南地震》
2015年第3期34-39,共6页
South China Journal of Seismology
基金
2015年中国局三结合课题KS06资助
关键词
固体潮
钻孔体应变
气压
降雨
水位
Earth tide
Borehole body strain
Air pressure
Rainfall
Water level
