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地震 ›› 2007, Vol. 27 ›› Issue (3): 117-124.

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钻孔体应变观测资料的实地校正

易志刚, 邱泽华, 宋茉   

  1. 中国地震局地壳应力研究所, 北京 100085
  • 收稿日期:2006-12-29 修回日期:2007-01-17 出版日期:2007-07-31 发布日期:2021-10-29
  • 作者简介:易志刚(1948-), 男, 重庆人, 高级工程师, 现主要从事钻孔应力-应变数据处理与地震前兆分析等研究。
  • 基金资助:
    国家发展和改革委员会发改投资项目([2004]1138)

On the spot correction of observational data of borehole bulk strain

YI Zhi-gang, QIU Ze-hua, SONG Mo   

  1. Institute of Crustal Dynamics, CEA, Beijing 100085, China
  • Received:2006-12-29 Revised:2007-01-17 Online:2007-07-31 Published:2021-10-29

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摘要： 以钻孔体应变为例, 利用潮汐因子对钻孔体应变观测资料进行校正。 结果表明, 由于各台所处的构造条件、 地形条件、 钻孔条件不同, 各台的校正系数也不同。 校正系数隨时间变化比较稳定,变异程度系数最大约为4.1%最小仅有0.1%, 表明校正结果相当好。 文中给出了部分钻孔体应变台站观测资料的校正系数。 该方法有计算简便、 结果可靠、 实用性较强等优点。

关键词: 钻孔体应变仪, 潮汐因子, 校正, 变异程度系数, 地震场

Abstract: In this paper, the authors take the borehole bulk strain as an example to correct borehole bulk strain data by tidal factor. The result shows that the coefficient of every strain is different because of the difference of the station structural condition, topographic condition and borehole condition. The coefficient is relatively stable with time, variation factor is about 4.1% at most and 0.1% at least, indicating that the result of the correction is quite well. This paper presents the coefficients of some observational data of borehole bulk strain stations. The method has the advantages in easy calculating, dependable result, practically using and so on.

Key words: Borehole strainmeter, Tidal factor, Correction, Variation factor, Earthquake field

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