A needed analysis is done to Hudson theory and Thomsen theory, and then a numerical simulation of P- and S-wave velocity of EDA media is also done. As a result, we bring forward a geometrical-mean method to calculate the velocities in this paper.

• 本文首先对Hudson裂隙理论和Thomsen裂隙理论进行了必要的分析,并据此对EDA介质的纵横波速度进行了数值模拟,并提出了几何平均法。