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地震 ›› 2006, Vol. 26 ›› Issue (4): 113-120.

• 学术讨论 • 上一篇    下一篇

京津冀地区氡的数字化观测及其地震前兆监测效能评估

刘成龙1, 鱼金子1, 赵文忠2, 车用太1   

  1. 1.中国地震局地质研究所, 北京 100029;
    2.北京市地震局, 北京 100080
  • 收稿日期:2006-05-29 修回日期:2006-06-23 发布日期:2021-11-01
  • 作者简介:刘成龙(1972- ), 男, 江西临川人, 在读博士生, 主要从事地下流体监测等研究。

Digitalized radon observation and monitoring efficiency evaluation of earthquake precursor in the Beijing-Tianjin-Hebei region

LIU Cheng-long1, YU Jin-zi1, ZHAO Wen-zhong2, CHE Yong-tai1   

  1. 1. Institute of Geology, CEA, Beijing 100029;
    2. Earthquake Administration of Beijing Municipality, Beijing 100080, China
  • Received:2006-05-29 Revised:2006-06-23 Published:2021-11-01

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摘要： 京津冀地区已建成氡的数字化(气氡)观测井(泉)共12口, 目前正在运行8口, 其中有1口井观测的数值低于仪器检出限, 故实际有效观测井(泉)为7口。 文中系统分析2004年7口井(泉)气氡年、 月、 日动态特征, 根据以往的水氡震例评估其地震中期、 短期与短临前兆异常的可能性, 认为多数井中有可能识别出以破坏年变规律为标志的中期前兆异常, 但很难识别出以阶变或脉冲为特征的短期和短临前兆异常。 文中还对比分析了同一口井(泉)气氡与水氡动态的差异性, 发现气氡的动态稳定性明显不如水氡, 这不利于气氡在地震短期或短临前兆异常监测中发挥作用。

关键词: 气氡, 动态特征, 监测效能, 京津冀地区

Abstract: 12 wells (springs), using for o digitalized observation of radon (gas radon), have already been built in Beijing-Tianjin-Hebei region. Among them, 8 wells are running. Because the radon value in one of the eight wells is less than limit of detection, there are only 7 wells (springs) that are used for effective observation. After systematically analyzing different the yearly, monthly and daily gas radon dynamic behaviors of 7 wells (springs) in 2004, and evaluating the possibility of precursory anomaly of earthquake's medium-term, short-term and short-impending-term by comparing with water radon, we consider that it is possible to make out the medium-term precursory anomalies which take the yearly regularity break as mark, and it is hard to make out the short-term and short-impending-term precursory anomalies which take step-change and impulse as mark. By analyzing behavior difference between gas radon and water radon in the same well (spring), we find that gas radon is less stable than water radon. It is not propitious to exert efficiency for gas radon in short-term or short-impending-term precursory anomaly monitoring.

Key words: Gas-radon, Behavior characteristics, Monitoring efficiency, Beijing-Tianjin-Hebei region

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