[1]DING Fenghe,HE Jiawei,LUAN Bowen,et al.Comprehensive Evaluation of Groundwater Types of Seismic Observational Wells in South Ningxia and Its Adjacent Areas[J].Journal of Seismological Research,2022,45(04):599-607.[doi:10.20015/j.cnki.ISSN1000-0666.2022.0059]
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Comprehensive Evaluation of Groundwater Types of Seismic Observational Wells in South Ningxia and Its Adjacent Areas
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
45
Number of periods:
2022 04
Page number:
599-607
Column:
Public date:
2022-08-20
- Title:
- Comprehensive Evaluation of Groundwater Types of Seismic Observational Wells in South Ningxia and Its Adjacent Areas
- Keywords:
- well water level; well-aquifer system; groundwater type; South Ningxia and its adjacent areas
- CLC:
- P315.723
- DOI:
- 10.20015/j.cnki.ISSN1000-0666.2022.0059
- Abstract:
- Using digital data of water level and air pressure in six seismic observational wells including Ganyanchi well in Haiyuan,Wangmin well in Xiji,Dongshanpo well in Guyuan,Liuhu well and Tielu well in Pingliang and Weirong well in Jingning in South Ningxia and its adjacent areas,and based on the spectrum analysis method,the step response function method of well water level to air pressure,and the phase advance or lag method of tidal wave group,we determined the groundwater type of the aquifer in each well.And using the measurements of hydrochemical ion samples of each well in recent years,we analyzed the state of water-rock equilibrium in the wells,and comprehensively discussed the groundwater type of the aquifer of each well.The results show that the bearing strength of the six wells from the strongest to the weakest is Tielu well,Weirong well,Dongshanpo well,Wangmin well,Ganyanchi well and Liuhu well.Controlled by regional landform,structural characteristics,wellhole structure and fracture development,the six wells to some degree have hydraulic connections with the external environment.Finally,we analyzed the inconsistency between groundwater types of these wells judged according to the storage conditions at the time of well completion and the groundwater types of these wells judged according to the method proposed in this paper.The hydraulic property,degree of fracture development,the well-hole structure,and the tidal wave caused the inconsistency.
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Last Update:
2022-08-01