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The vibration technology is integrated into hydraulic excavator, and the mathematical model is established to analyze the influence of vibration on the soil shear. In addition, for the vibration mining actions, mining force mathematical formula is calculated and bucket buried curve graphics are analyzed, and relevant conclusions of vibration mining drag reduction are obtained. A vibration mining system with controllable vibration frequency and amplitude can be realized by means of a self-designed vibration excitation device through a vibration excitation of cylinder on a string. Orthogonal test of soil vibration mining is carried out by using this system, the mining resistance data are analyzed, and the feasibility of the mining vibration reduction is verified.

MECHANISM AND EXPERIMENTAL STUDY OF DRAG REDUCTION BY VIBRATION MINING