Sample preparation mold of three-dimensional fractured rock mass test piece based on 3D printing technology

The sample preparation mold comprises a base, a column body and a crack plate, the base is of a hollow structure with the upper end open and the lower end closed, the column body is connected with thehollow part of the base in a matched mode, the crack plate is located in the column body, and the column body is connected with the crack plate in a matched mode. The fissure plate is used for constructing fissures of the rock mass when the rock mass test piece is manufactured; according to the utility model, the included angle between the crack plate and the lower surface of the column body canbe adjusted according to the crack angle of the simulated real rock mass, so that the state of the real rock mass can be better simulated, and the obtained rock mass test piece can restore the real crack condition to the maximum extent; the die is made of a material which is hard in texture at normal temperature and easy to gasify at 100-150 DEG C. After a rock mass test piece is formed and demolded, a crack plate and a fi