Monitoring method for influence circle due to temperature variation in underground rock stratum

The variation relation between influence circle and temperature variations of underground rock stratum is highlighted based on laboratory and field tests. The laboratory temperature variation tests on a series of sandstone and mudstone rock are performed, and then a regression equation based on the test data is developed. While the field tests are carried out in the suburbs of Tokyo with the aim to get the electrical resistivity data in different temperature variation periods by special geophysical equipment, and the real variation rate of electrical resistivity with the increase of temperature is thus revealed. It is proved that the temperature diffusion map of rock under the heating source can be visualized by real-time measuring the electrical resistivity variation at different points of the underground rock stratum. Embedding unclear waste deeply into the sedimentary rock is a widely treatment for disposal nuclear waste disposal. The present research puts forwards a feasible monitoring method for the influence circle of nuclear waste disposal.