Fracture visualization integrated soil body uniaxial stretching device

The invention discloses a fracture visualization integrated soil body uniaxial stretching device, which comprises a bottom plate, a visual integrated mold, a fixing plate and an oil pressure chest expander, wherein the bottom plate is provided with two rows of sliding balls; the visual integrated mold is connected to the two rows of sliding balls in a sliding manner; the mold comprises a mold fixing half, a mold stretching half, L-shaped plates, fixing bent iron and sliding strips; the mold fixing half is connected with the fixing plate, and the mold stretching half is connected with the oil pressure chest expander; the plurality of sliding strips are arranged on the sliding ball between the mold fixing half and the mold stretching half in parallel in a sliding manner; the L-shaped platesabut against the two sides of the plurality of sliding strips in a spliced mode. The sample cavity is dumbbell-shaped. According to the invention, a sample preparation mold and a movable clamp are integrated, sample demolding