Inclined layered triaxial soil sample preparation method

The invention belongs to the technical field of soil sample preparation processes, and provides an inclined layered triaxial soil sample preparation method which comprises the following steps: firstly, selecting an original soil sample meeting the density requirement, then drying the original soil sample, then selecting a plurality of layers of filter screens, then putting the original soil sample meeting the density requirement on the filter screens, and finally drying the original soil sample to obtain the inclined layered triaxial soil sample. The method comprises the following steps: firstly, filtering a soil sample, then screening the original soil sample, then putting the filtered soil sample into a cylinder body, then adding water into the cylinder body according to a certain proportion, and stirring the water-added soil sample by adopting a stirring rod; a traditional plane striking rod is improved into the inclined plane striking rod with different angles, so that the soil sample is compacted, the in