Creep characteristics of muddy submarine channel slope instability

Creep is an important factor of muddy submarine channel slope instability. In this study, a sub-bottom profiler was used to monitor the continuous internal change in laboratory better understand creep characteristics and mechanism The process analyzed according changes sound intensity. results indicate notable during instability process. Changes intensity time series decrease with increasing depth, fluctuation depth vertical varies can be roughly divided into four stages based on profile data: expansion stage; unstable fracture post-fracture development stage. An adjustment sediment microstructure ascribed deformation. This study highlights prospects high-resolution acoustic monitoring detect quantify entire instability, which great significance for evaluation early warning prediction