The multi-channel transient Ralyleigh wave exploration technique is a new technique developed recently, which has a lot of advantages such as high resolution, widely applicable, simple-equipment, efficient, non-destructive and so on.

Detecting variation of near-surface velocity structure near Xiadian buried fault with transient multi-channel surface wave;

Research on application of instantaneous Rayleigh wave method to inspection of dike cutoff wall quality;

SVD algorithm for inversion of instantaneous Rayleigh wave is proposed in this paper, which improves shear wave precision and resolution by weight matrix, enhances iterative effect and adjusts the relation between resolution and solution by self-adaptation iterative damping factor.

Based on measured data in exploration of quaternary period,the relativity of Rayleigh wave velocity and transverse wave velocity is discussed,and it confirms the veracity and reliability of instantaneous Rayleigh wave in shallow geological engineering exploration.