天津地区咸水井映震能力评估
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摘要
系统处理了1992年以来天津地区4口咸水井的水位观测资料,使用R值对这4口井的映震效能进行了评估。认为:①这4口井的R值不高,主要原因是咸水层观测井水位异常时间较长,致使预报占用时间较长;②咸水层观测井水位异常幅度比较明显,异常性质的规律性较强,出现异常时易于识别;③咸水层观测井水位有异常有地震的比率达到了70%以上,这对有震的判定非常有意义。
I have processed the observation data of water level about 4 salty water wells since 1992.And I used the R value to make appraisal of corresponding earthquake efficiency for these 4 salty water wells.I thought that: ① The R values of these 4 wells are not high.The main reason is that the abnormity time of observation wells in salty water layer is too long.It made the prediction to take long time;② The abnormity amplitude of water level in salty water layer is obvious.The regularity of the abnormity character is strong.When there appears abnormity,it is easy to distinguish;③ The proportion of having abnormity and having earthquakes of water levels of observation wells in salty water layer is more than 70%.It is very meaning to judge earthquake occurrence.
I have processed the observation data of water level about 4 salty water wells since 1992.And I used the R value to make appraisal of corresponding earthquake efficiency for these 4 salty water wells.I thought that: ① The R values of these 4 wells are not high.The main reason is that the abnormity time of observation wells in salty water layer is too long.It made the prediction to take long time;② The abnormity amplitude of water level in salty water layer is obvious.The regularity of the abnormity character is strong.When there appears abnormity,it is easy to distinguish;③ The proportion of having abnormity and having earthquakes of water levels of observation wells in salty water layer is more than 70%.It is very meaning to judge earthquake occurrence.
引文
[1]郑熙铭,黄振义,王雅灵.关于天津地下水动态观测井网的地震监测能力[J].地震,1989,(4):58-65.
[2]邵永新,郑文俊.天津水动态项目异常的典型特征[J].地震,2002,22(4):123-129.
[3]邵永新,李君英,李一兵,等.地下流体动态异常分布与构造的关系[J].西北地震学报,2000,22(3):284-287.
[4]金艳,高文海,郑熙铭.东台子井水位的突升及其与地震的关系[J].地震学刊,1989,(4):104-107.
[5]金艳,郑熙铭.双桥井水位地震异常特征的再认识[J].华北地震科学,1997,15(1):58-66.
[6]邵永新,李君英,田山,等.唐山7.8级地震前后地下流体动态异常演化特征[J].西北地震学报,2001,23(1):26-29.
①地下流体学科技术协调组,地下流体观测网(站)质量与效能评估方案(试行),2005.
[2]邵永新,郑文俊.天津水动态项目异常的典型特征[J].地震,2002,22(4):123-129.
[3]邵永新,李君英,李一兵,等.地下流体动态异常分布与构造的关系[J].西北地震学报,2000,22(3):284-287.
[4]金艳,高文海,郑熙铭.东台子井水位的突升及其与地震的关系[J].地震学刊,1989,(4):104-107.
[5]金艳,郑熙铭.双桥井水位地震异常特征的再认识[J].华北地震科学,1997,15(1):58-66.
[6]邵永新,李君英,田山,等.唐山7.8级地震前后地下流体动态异常演化特征[J].西北地震学报,2001,23(1):26-29.
①地下流体学科技术协调组,地下流体观测网(站)质量与效能评估方案(试行),2005.
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