Device for pre-buried channel shear test

The utility model relates to the field of pre-buried channel shear tests, in particular to a device for a pre-buried channel shear test, which comprises a working table, a sliding column is arranged at the top end of the inner side of the working table, the sliding column penetrates through the working table and is in sliding connection with the working table, and the top end of the sliding column is fixedly connected with a first sliding rail. Through the arrangement of a sliding column, a main sliding plate, a pressing plate and a baffle, the arrangement is matched with the fixed connection of the sliding column and a first sliding rail, the fixed connection of the main sliding plate and a second sliding rail, the fixed connection of the pressing plate and a third sliding rail and the fixed connection of the baffle and a spring, a worker places an embedded sliding groove in the middle of the workbench, and the main sliding plate is pressed downwards; and a first positioning bolt is rotated, the pressing pla