Pile-soil contact surface shear mechanical property testing equipment, comprising a support apparatus (1), a pressure apparatus (2), a film container (3), and a thrust apparatus (4). The support apparatus (1) comprises a base plate (1.1), a top plate (1.2), a support beam (1.3), and multiple support columns (1.4). Through holes used for the insertion of a pile test sample (5) are provided on the base plate (1.1) and the top plate (1.2). The pressure apparatus (2) comprises a vertical loading apparatus (2.1) and a force transmission rod (2.1a). The vertical loading apparatus (2.1) applies a vertical pressure to the pile test sample (5) via the force transmission rod (2.1a). The film container (3) comprises a film cylinder (3.1), a water permeable plate (3.2), and a sealing cover (3.3). The film cylinder (3.1) is sleeved on the radial exterior of the pile test sample (5). An accommodating cavity for accommodating a soil test sample (6) is provided between the film cylinder (3.1) and the pile test sample (5). The thrust apparatus (4) is sleeved on the film cylinder (3.1) and provides a thrust in the direction perpendicular to the axial direction of the pile test sample (5) to squeeze the soil test sample (6) in the film container (3). The pile-soil contact surface shear mechanical property testing equipment is structurally simple and easy to operate, allows the accurate simulation of the mechanical properties of the pile soil of different types of pile foundations in actual projects, and facilitates the research on pile-soil experiments.
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