乌什地震台多分量钻孔应变观测资料干扰的初步分析
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摘要
根据多分量钻孔应变的观测原理,从理论和实际观测中分析了水厂抽水、标定、同机柜检修仪器的相互影响、数采死机重启数采、天气突变打雷等对多分量钻孔应变观测的影响。分析表明,钻孔应变观测值波动时间与各干扰时间基本吻合,因此认为水厂抽水、同机柜检修仪器、天气突变打雷等对多分量钻孔应变观测会造成一定程度的干扰。
According to the principle of the multi-component borehole strain observation,the interferences of water work pumping,calibration,repairing of equipments in the same cabinet,digital acquisition system restarting,abrupt change of weather and thunder to the multi-component borehole strain observation are analyzed.Analysis shows that the fluctuations in borehole strain observations are basically consistent with the interferences;So that,the water works pumping,repairing equipment in the same cabinet,thunder and other weather changes lead to the interferences to the multi-component borehole observations to a certain degree.
According to the principle of the multi-component borehole strain observation,the interferences of water work pumping,calibration,repairing of equipments in the same cabinet,digital acquisition system restarting,abrupt change of weather and thunder to the multi-component borehole strain observation are analyzed.Analysis shows that the fluctuations in borehole strain observations are basically consistent with the interferences;So that,the water works pumping,repairing equipment in the same cabinet,thunder and other weather changes lead to the interferences to the multi-component borehole observations to a certain degree.
引文
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[2]赵楠,江沛春,张光华,等.六安地震台TJ-2钻孔体应变资料初析[J].防灾科技学院学报,2010,(1):79-83.
[3]北京震苑迪安防灾技术研究中心.TJ-2体应变仪器使用说明书[S].中国地震局地壳应力研究所,2007(3):1-10.
[4]高福旺,李丽,牛安福,等.对体应变干扰因素的识别及排除[J].地震,2004,24:90-97.
[5]唐九安,王勇,刘福生.北京昌平地震台TJ-1体积钻孔应变仪潮汐参数动态特征及其稳定性研究[J].华北地震科学,2001,12:34-40.
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