[1]DUAN Shengchao,ZHANG Li,YANG Mingchang,et al.Experimental Analysis of Well Water Affected by Environment for the Tengchong Seismic Observation[J].Journal of Seismological Research,2020,43(01):109-117.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
43
Number of periods:
2020 01
Page number:
109-117
Column:
Public date:
2020-01-30
- Title:
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Experimental Analysis of Well Water Affected by Environment for the Tengchong Seismic Observation
- Author(s):
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DUAN Shengchao1; ZHANG Li2; YANG Mingchang1; SUN Zigang1
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(1.Tengchong Seismic Station,Yunnan Earthquake Agency,Tengchong 679100,Yunnan,China)(2.Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)
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- Keywords:
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Tengchong seismic observation wells; water level; the environmental impact; water chemistry; earthquake subsurface fluid precursor
- CLC:
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P315.723
- DOI:
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- Abstract:
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In this paper,the change of well water level in the Tengchong earthquake observation is scientifically and concretely analyzed and studied under the influence of surrounding environmental factors.The well water level of the Tengchong seismic station has many abnormal changes of large and fast rise and fall over these years.Through the experimental analysis of the changes in the water level of the Tengchong seismic station well affected by the water discharge and storage process of the Yanjiatang,we combined with the analysis of the hydrochemical composition and stable isotope of hydrogen and oxygen of well water in the Tengchong seismic station and Yanjiatang water.The results show that the large and rapid change of the well water level in the Tengchong seismic station is mainly affected by the water discharge and storage in Yanjiatang,and is the abnormal change caused by the water discharge and storage process in Yanjiatang.Based on the analysis of the abnormal water level of the Tengchong well water level before the near earthquake,it is considered that the loading of excessive rainfall in Tengchong has a modulating effect on the tectonic activity in this area,and the change of the well water level can provide certain earthquake precursor abnormal information and can reflect the underground tectonic activity in the area near the seismic station.When using the water level observation data of the Tengchong well,the factors affected by the environment should be fully considered,and the changes of the observation data should be objectively and correctly analyzed.