井水温度微动态形成的水动力学机制研究

井水温度微动态观测越来越受到有关学者的关注，已成为我国地震地下流体动态观测的主测项之一。观测结果表明，无论是水温的正常动态还是震前的异常动态的形成，用传统的热传导或热对流机制难以给出合理解释。因此笔者根据观测到的事实、异常特征与同震效应等提出了水动力学机制，即含水层变形→含水层内孔隙压力变化→井－含水层系统内水流变化→井水温度的变化。

PRELIMINARY STUDY ON HYDRODYNAMIC MECHANISM OF MICROBEHAVIOR OF WATER TEMPERATURE IN WELL

The dynamic observation of water temperature in a well is followed wlth more interests by more scholars, and becomes one of the principal observational items of seismic ground fluid in China. The observational results indicate that it is more difficult to explain the behaviour characteristics of water temperature in a well in a normal period or before an earthquake by using the traditional mechanism of heat conduction or heat convection.Therefore, author advances the hydrodynamic mechanism on some observed facts; anoma lous characteristics and coseismic effects, i, e. the deformation of an aquifer; Change of pore pressure in an aquifer; change of water flow in a well-aquifer system; change of water temperature in a well.