Method for manufacturing true triaxial rock sample of soft and easily-disintegrated layered rock

The invention relates to a method for preparing a true triaxial rock sample of a weak and easily-disintegrated layered rock, which belongs to the technical field of rock mass engineering, and comprises the following four steps: cutting a plane, preparing a beta corner rock block, preparing a beta and omega corner rock plate and forming a standard cuboid rock sample, the rock specimen is adjusted to form an angle beta with a cutting line and then cut, then the rock specimen is translated by m distance and then cut, and a beta and omega angle rock plate manufacturing method comprises the steps of fixing a cut elevation beta angle rock block, adjusting the rock specimen to form an angle omega with the cutting line and then cutting, and then translating the elevation beta angle rock block by s distance and then cutting. The rock sample utilization rate is high, rock samples of any angle and any size can be cut, multiple samples can be prepared through one-time cutting, and the sample preparation success rate and