Longitudinal and transverse wave field separation method, device and equipment and storage medium

The invention discloses a longitudinal and transverse wave field separation method, device and equipment and a storage medium, and belongs to the field of exploration geophysics. The method comprises the following steps: determining a mass point movement speed and a stress field of a total wave field of longitudinal and transverse waves; based on the mass point movement speed of the total wave field, the mass point movement speed and the stress field of longitudinal waves are determined through the first-order speed stress relation and the auxiliary speed stress relation of the longitudinal waves, and the first-order speed stress relation is the first-order relation between speed components in three directions and normal stress; the auxiliary velocity stress relationship is an auxiliary relationship between velocity components in the three directions and normal stress; and based on the mass point movement speed and the stress field of the total wave field and the mass point movement speed and the stress field