Well Water Level Change with Tide Generating Height for Linear Poroelastic Aquifer and Their Application
详细信息
- 责任者：Liu Chunping (Institute of Disaster Prevention ; China Earthquake Administration ; Sanhe 065200 ; China) ; Tang Yandong
- 刊名：Seismology and Geology
- 出版年：2011
- 卷期：33(1)
- 关键词：地下水动态 ; groundwater regime ; 潮汐作用 ; tidal processes
- 页码：p.133-140
- 图表：4 illus., 15 refs.
- 分类号：0500
- issnNo：ISSN0253-4967
- isbnNo：CN11-2192/P
摘要
Volume strain for the saturated rock in the undrained condition under tide force is studied in this paper with mechanical balance equation of linear elastic medium. The equation relating to pore pressure in confined aquifer responding to tide generating height (TGH) is proposed, and the coefficient (E) in this equation is defined with a clear physical meaning. In combination with the formula proposed by Hsieh (1987) for the amplitude ratio (A) and phase shift (α1) of well water level response to pore pressure, the formula is derived for the amplitude ratio M(=EA)and phase shift α(=α1+α2) of well water level response to TGH. M and α can be calculated by measured water level and theoretical earth tide data.