The fault exists obviously in three bands: cataclasite concentrated joint band, worn braciation shearing rotation band and gouge partial pressure solution band.

The data of polar motion, rotation of the earth and atmospheric excitation function are analysed by the Auto-Regression power spectrum method, and their spectra at low frequency band are obtained.

The tensile displacement and angle of rotation of tensile strain localized band are analyzed in strain softening stage and in real crack propagation stage based on gradient-dependent plasticity.