The Experimental Research About The Relationship Between The Parallactic Polarizability And The Temperature Of Homogeneous Medium (Loess)

Because of the covert fire source, the complex restriction of the geological conditions, and so on, proving up the location and extension of the underground fire area has been the question that the project of extinguishing fire should make definite. With the application of detecting the ground radon and the induced polarization method, the group(detecting radon )of Taiyuan University of Technology experimented on detecting the fire source of the three coal layers of the 8089 working face in Wangcun Mine of the Group of Datong Coal Industry, and acquired the preferable effects. But because of the limited study of the relationship between the polarizability and temperature of the medium, this paper's theme is theoretically studying the correlation between the temperature and the polarizability by using the indoor simulating experimentation.After the contrast augmentation to the simulating model and the reasonableoptimization to the necessary parameters, the author sets up a simulating experimental platform fitting to more parameters (4480mm X 2050mm X 2140mm). This platform, which is made up of the systems including the system of the sample pick-up and testing, the system of heating up, the system of measuring temperature and the detecting system and can be stuffed with the random medium, is convenient to control the testing parameters. Therefore, it has the important scientific research value in studying the relationship between the changing of the parameters (including the temperature, the humidity, the grain radius and so on) and the electricity and radioactivity of the medium.Applied the count statistics and the numeral value analysis, the paper analyzes, concludes and contrasts the data sufficiently through the experimentation, and acquires the following results that the resistivity and the polarizability both have the negative relationship with the temperature variety of medium from 0℃ to 200 ℃. The parallactic poalarizability is consistent with the temperature variety in the plan as well as the section, but their trends are exactly opposite. Power supply voltage has no considerable influence to the resistivity and polarizability by using duality variance analysis, however, the detecting depth and the plan position influence them greatly. Different AB/2 interval that increases by degree does not influence variance and the average value of the resistivity and the polarizability remarkably. By using the least double multiplication, the relationship of temperature-time-the influence radius of the fire source is carried up by the mathematic drawing up. After discussing their correlation, I educe the influence radius of the fire source and carry out the `trend analysis and forecast to the spacial changing of the temperature and theparallactic polarizability in the end.