Loaded rock sample radon precipitation detection device and detection method

Abstract

The invention discloses a loaded rock sample radon precipitation testing device and testing method. The testing device comprises a triaxial compression apparatus, wherein the triaxial compression apparatus comprises a cylindrical pressure chamber and a pressure machine set on the top of the cylindrical pressure chamber. The pressure chamber comprises a top plate, a base plate and side plates. An upper pressure head of which bottom is equipped with an upper ventilation slot, a lower pressure head of which top is equipped with a lower ventilation slot, and a sample chamber composed of a heat shrink tube are set in the pressure chamber, wherein the heat shrink tube is vertically set between the upper pressure head and the lower pressure head. According to the testing device and the testing method, through utilization of a carrier gas, precipitation quantity of radon is improved and migration of the radon is accelerated, and radon precipitation rapid and accurate testing is realized. Through importing of a carrier gas into the pressure chamber, the problem of compact structure and poor permeability possibly existing in a loaded rock test sample can be mitigated. A testing process is completed continuously. Testing sensitivity is improved. A conclusion is easy to draw.

Description

technical field [0001] The invention belongs to the technical field of geophysical exploration, and in particular relates to a measuring device and a detecting method for radon gas precipitation of a loaded rock sample. Background technique [0002] For a long time, radon has been considered as one of the gas components with the most opportunity to be effectively utilized. The precursor of radon was discovered by Soviet scholars after the Tashkent earthquake in 1964. Regarding the release of radon from the mineral lattice, especially the correlation between the release of radon and earthquakes, various hypotheses are generally put forward based on the main point of view of stress and strain, and a large number of research experiments have been carried out from various aspects, and certain conclusions have been obtained. [0003] Radon is a rare gas with natural radioactivity, which is formed by the decay of radioactive elements radium, thorium and actinium. Radon detection ...

AI Technical Summary

Problems solved by technology

Previous studies on the change of radon concentration in the process of coal and rock fracture have introduced a novel method for the prediction of coal and rock dynamic disasters such as coal and gas outburst, rock burst, etc., but the relevant research is only in the preliminary experimental stage

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