Analysing the general solution of plane wave in 3D transversely isotropic medium,we found that quasi P-wave,quasi SV-wave and qu- asi SH-wave are coupling and coexistent.

• 在分析3D 横向各向同性介质中平面波的通解形式时,发现似 P 波、似 SV波及似 SH 波是相互耦合的,且同时并存。