Rock-soil body deformation evolution measuring system and method suitable for hydraulic scouring test

The invention discloses a rock-soil body deformation evolution measuring system suitable for a hydraulic scouring test, and relates to the technical field of hydraulic engineering. The device comprises a bank slope rock-soil body, a track and a track trolley, a binocular depth camera is arranged at the bottom of the small rail car; the small rail car comprises a frame and wheels; a battery pack, a motor module, a control module and a wireless communication module are arranged in the frame; the high-performance computer is provided with a track trolley control program, a binocular depth camera control program and an SLAM program. According to the method, the evolution process of the integral accumulative deformation field and the deformation rate field of the research area can be obtained, and people can deeply understand the deformation and damage process of the rock-soil body under the action of hydraulic scouring. The invention further relates to a measuring method of the rock-soil body deformation evolutio