地震学报2013，Vol.35Issue(3)：421-429,9.DOI:10.3969/j.issn.0253-3782.2013.03.013
潮汐水位振幅和位相变化研究及其在地下水异常分析中的应用
Research of tidal water level amplitude and phase and application to causation analysis of well water level changes
摘要
Abstract
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.关键词
潮汐/位相/振幅/裂隙/含水层Key words
tide/ phase/ amplitude/ fracture/ aquifer-zone分类
天文与地球科学引用本文复制引用
石云,刘春平,廖欣,唐彦东,万飞..潮汐水位振幅和位相变化研究及其在地下水异常分析中的应用[J].地震学报,2013,35(3):421-429,9.基金项目
河北省教育厅科学研究计划项目(Z2009104)、防灾减灾青年科技基金(2010001,2010003)、科技部地震行业科研专项(200808055,201208009)和中央高校基本科研业务费专项(ZY20120203)资助. （Z2009104）
