【摘要】 <正> 本文利用天津市高村、河南省范县和北京市洼里三口井孔各两年的水位观测数据和相同测点的气压观测数据,进行时间域分析和频率域分析,求出了井水固体潮相对于体膨胀固体潮理论值的振幅比a和时间滞后△t以及井-含水层系统的气压效率B。分析结果表明,这几个井孔的记录灵敏度已接近Sacks-Evertson体积应变仪的水平。由分析结果可进一步求出含水层的体积压缩模量E_a、垂直压缩模量E_v和平均孔隙度n。 此外,三口井孔的分析结果还程度不同地反映了由于液态地核的动力学效应造成的地球勒夫数f随潮汐频率的变化。更多还原

【Abstract】 The time domain and frequency domain have been analysed for the two-year data of water-level and barometrical observations in the same wells of Gaocun, Tianjin; Fanxian County, Henan Province; and Wali, Beijing. The amplitude ratio and the time lag of the well earth tides versus the tidal theoretical value of dilatation of the earth, as well as the barometric efficiency B of the well-aquifer system have been given. The analysis results have demonstrated that the sensitivity of Gaocun well corresponds to 0.25 nanostrain per millimeter and the wells seem to have approached the level of the advanced Sacks-Evertson volumetric strainmeter. The aquifer bulk modulus Ba, the average porosity n and the aquifer vertical compression modulus Ev can be obtained from further analysis results.The analysis results of the three wells have also reflected the variation of the earth Love number with the tidal frequency, caused by the dynamic effect of the liquid earth core. Such analysis results published both nationally and internationally are rare.更多还原