Shi Yun, Liu Chunping, Liao Xin, Tang Yandong, Wan Fei. 2013: Research of tidal water level amplitude and phase and application to causation analysis of well water level changes. Acta Seismologica Sinica, 35(3): 421-429. DOI: 10.3969/j.issn.0253-3782.2013.03.013
Citation: Shi Yun, Liu Chunping, Liao Xin, Tang Yandong, Wan Fei. 2013: Research of tidal water level amplitude and phase and application to causation analysis of well water level changes. Acta Seismologica Sinica, 35(3): 421-429. DOI: 10.3969/j.issn.0253-3782.2013.03.013

Research of tidal water level amplitude and phase and application to causation analysis of well water level changes

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  • Received Date: January 28, 2012
  • Revised Date: September 13, 2012
  • Published Date: April 30, 2013
  • The theory of the amplitude and phase shift of tidal well water-level variation in well-aquifer-aquiclude system (WAAS) is introduced to study hydraulic flow among the well, fractures and micro-fractures (porosity) in the well-fracture-micro-crack fracture (porosity) system (WFMS). While analyzing the tide induced pore pressure and the hydraulic flow process in WFMS, the main factors affecting amplitude and phase shift in WFMS were drawn up. The amplitude ratio A and phase α2 of the tide water-lever caused by hydraulic flow between the well and fractures vary with the same tendency as equivalent transmissivity (T). The amplitude ratio D and phase α1 of tidal water-lever caused by hydraulic flow between fracture and micro-crack (porosity) vary in opposite trend with the tidal amplitude ratio (E'/E) between fracture and micro-crack under undrained condition. An analysis table on aquifer deformation is listed in this paper according to the changes of well water level, tidal amplitude and phase ratio. And is used to analyze abnormal causes of water level changes in Dongchuan, Mile and Xichangchuan 03 three wells.
  • 刘春平, 唐彦东, 廖欣, 万飞, 石云. 2011a. 线弹性含水层井水位、 孔压对引潮位响应的研究及其应用[J]. 地震地质, 33(1): 133-140.
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    刘春平, 石云, 万飞. 2011c. 不排水条件下裂隙流体压力对引潮高的振幅比和位相差的响应[J]. 中国地震, 27(3): 300-308.
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