2016年衡水冀16井水位变化分析
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摘要
衡水冀16井水位2016年经常出现有规律的大幅度异常波动变化,具有小幅下降—持续上升—小幅上升—持续下降变化形态,日变最大幅度0.73 m。通过现场核实,发现观测仪器工作正常,附近鱼场地下水开采量增加。增加辅助观测仪器同井对比水位观测,并对鱼场2口冷水井进行抽水试验,分析衡水冀16井水位异常变化原因。结果显示,衡水冀16井水位大幅波动异常变化可能因冷水井1抽水所致,冷水井2无影响。
In 2016, the water-level of Hebei Hengshui No.16 well often abnormally changes regularly in a large range, with a pattern as slightly decreasing, then continuously increasing. and slightly increasing, followed by continuously decreasing. Its daily change amplitude is 0.73 m in maximum. Through the field verification, it is found that the instrument works well and the amount of groundwater exploitation in the fishing farm around the well observation station increased. By carrying out the test of pumping water from the two cold wells locating at fishing farm and adding comparative observation of water level at auxiliary well, we analyze the reason of the abnormal change of the water level at Hebei Hengshui No.16 well. The result reveals that pumping water from the No.1 cold well at fishing farm affects greatly on the abnormal change in a large scale of the water-level of Hengshui No.16 well in Hebei, and the No.2 cold well at fishing farm has no effect.
In 2016, the water-level of Hebei Hengshui No.16 well often abnormally changes regularly in a large range, with a pattern as slightly decreasing, then continuously increasing. and slightly increasing, followed by continuously decreasing. Its daily change amplitude is 0.73 m in maximum. Through the field verification, it is found that the instrument works well and the amount of groundwater exploitation in the fishing farm around the well observation station increased. By carrying out the test of pumping water from the two cold wells locating at fishing farm and adding comparative observation of water level at auxiliary well, we analyze the reason of the abnormal change of the water level at Hebei Hengshui No.16 well. The result reveals that pumping water from the No.1 cold well at fishing farm affects greatly on the abnormal change in a large scale of the water-level of Hengshui No.16 well in Hebei, and the No.2 cold well at fishing farm has no effect.
引文
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陈敏,唐小勇,郭卫英,等.重庆大足井水位对邻井抽水的奇异响应及其机理[J].地震地质,2012,36(2):359-364.
龚永俭,陈嵩,程立康,等.宝坻新台井水位对地下水开采的响应特征及机理探讨[J].华南地震,2015,35(2):1-9.
高业新,吴庆华,韩玉英,等.抽水含水层对非抽水含水层水位影响的效应分析[J].现代地质,2009,23(1):164-170.
季振林,盖庆,许学礼,等.绥2井水位对浅层抽水的反映及其分析[J].地震,1989,3:58-62.
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刘耀炜,孙小龙,王世芹,等.井孔水温异常与2007年宁洱6.4级地震关系分析[J].地震研究,2008,31(4):347-353.
刘成龙.汶川地震地下水前兆异常及同震响应研究[D].中国地质大学,2012.
敬少群,王佳卫.大震前地下水位异常与应力异常区[J].地震,2008,21(2):79-86.
盛艳蕊,张子广,张素欣,等.栾城王家庄井水位异常分析[J].地震地磁观测与研究,2013,34(5/6):221-224.
孙小龙.水位与水温对远场巨震同震响应的机理研究[D].兰州:中国地震局兰州地震研究所硕士学位论文,2007.
孙小龙.地下水动态变化与地震活动的关系研究[D].北京:中国地质大学,2016.
孙小龙,刘耀炜,马玉川,等.鲁豫交界地区深井水位持续大幅度下降原因分析[J].中国地震,2013,29(1):132-141.
汪成民,车用太,万迪,等.地下水微动态研究[M].北京:地震出版社,1988.
杨竹转,邓志辉,刘春国,等.中国大陆井水位与水温动态对汶川MS 8.0地震的同震响应特征分析[J].地震地质,2008,30(4):895-905.
晏锐.影响井水位变化的几种因素研究[D].北京:中国地震局地震预测研究所,2008.
张立.汶川地震中云南地区地下流体典型前兆异常[J].地震地磁观测与研究,2010,31(6):40-44.
张素欣,张子广,盛艳蕊,等.一次显著的远场水位短临异常[J].中国地震,2013,29(3):386-392.
张素欣,刘耀炜,陆明勇,等.地下水超采区水位长趋势动态分析[J].地震,2007,7(4):51-58.