Preparation method of undisturbed granite residual soil-mud cake-concrete single shear test sample

The invention relates to the technical field of test samples, and discloses an undisturbed granite residual soil-mud cake-concrete single shear test sample preparation method which comprises the following preparation steps: measuring the diameter and height of a sample capable of being accommodated in a single shear test; sampling in the undisturbed granite residual soil to obtain a soil body column; the first coiled material is enclosed to form a first coiled cavity, the soil body column is located on the lower portion of the first coiled cavity, and the upper portion of the first coiled material is vacant to form a first cavity; pouring concrete into the first cavity to form a concrete test block, and after the concrete test block is solidified; a second roll cavity is defined by the second roll material, the concrete test block is placed on the lower portion of the second roll cavity, the soil body column is placed on the upper portion of the second roll cavity, and an isolation frame is arranged in the mi