Method for testing cohesive force and internal friction angle of rock-like material

The invention discloses a method for testing cohesive force and internal friction angle of a rock-like material, and belongs to the technical field of rock mechanical parameter determination. Comprising the following steps: manufacturing a through single-fracture rock mass model with a cuboid structure, and respectively designing through fracture samples with four different fracture inclination angles of 60 degrees, 72 degrees, 77 degrees and 90 degrees to carry out a test; the method comprises the following steps: preparing a through crack sample from a rock-like material by adopting a crack sample mold, carrying out a compression-shear test by adopting a uniaxial compression testing machine, and fitting to obtain the cohesive force and the internal friction angle by converting the principal stress and the tangential stress of a shear failure surface according to recorded axial loads on different samples. According to the method, cut-through fracture samples with different angles are prepared ...