Device and method for researching real-time development of microscopic damage of rocks through isotope tracing method

The invention discloses a device and a method for researching real-time development of microscopic damage of rocks through an isotope tracing method. The device comprises a fixing device and a permeability test device, wherein the fixing device comprises a steel wire rope, screw connectors and an aluminum ring; a rock sample is positioned in the aluminum ring; two ends of the aluminum ring are respectively connected with the corresponding screw connector; the middle of each screw connector is connected with the steel wire rope; a leveling ball is arranged at the head of the steel wire rope; the permeability test device comprises a first pressure vessel and a second pressure vessel used for containing chemical test solutions of radioactive isotopes; one end of the first rock sample is connected with the first pressure vessel, and the other end of the rock sample is connected with the second pressure vessel; an osmotic pressure difference is formed between the first pressure vessel and the second pressure vessel; and the first pressure vessel and the second pressure vessel are simultaneously connected with a supercharging device. According to the device and the method disclosed by the invention, the internal crack propagation condition of the rocks can be accurately researched, lots of repeated experiments are avoided, and the working efficiency is improved.