Sandy soil triaxial test sample kit

The utility model discloses a sandy soil triaxial test sample kit which comprises a pressure chamber base, a test upper cap and a pressure chamber cylinder, wherein the upper and lower ends of the pressure chamber cylinder are respectively matched with the pressure chamber base and the test upper cap, the pressure chamber cylinder is a cylinder composed of three arc pieces, a tight hoop is sleeved on the cylinder for banding, the inner wall of each arc piece is provided with a vertical air-out groove and a transverse air-out groove, and the intermediate-lower cylinder wall of the cylinder is provided with an air suction hole communicated with the vertical air-out grooves and transverse air-out grooves. The sandy soil triaxial test sample kit has the advantages that the air between a rubber film and the arc pieces can be clearly exhausted, thereby leading the rubber film to be tightly clung to the arc pieces, preventing the surface of a sample from being wrinkled and producing a sample with smooth surface, the sandy soil triaxial test sample kit has the advantages of simple principle and simple and convenient operation. Through changing the diameter and height of a sample producing cylinder, the sandy soil triaxial test sample kit can conveniently make samples with different diameters and heights to satisfy various testing needs.