Study On TEM Of Mine Safty System And Technology

With the further depth of mining increased ,the conditions of mine hydrogeolog- ical become more complicated, a variety of mine water damage has aways happened. TEM as a non-contact time domain electromagnetic method for the given water body has a unique geological advantages, At present,there is no really a suitable transient electromagnetic Miriam for explosive mine environment both at home and abroad, This greatly limits the transient electromagnetic technology Promote and applicate widely in the mine field.This paper basis on the theoretical that in the full- space for electromagnetic field, from numerical simulation and physical model test, Studied the spread of the mine transient electromagnetic discipline and its features, and discusse the acquisition signal dynamicrange,frequency band characteristics and the characteristics of electromagnetic noise;Surrounding the special circumstances of mine transient electromagnetic appara- tus of low power, small coils, and other great sounding technical requirements, propose research and design ideas of the mine transient electromagnetic(MTEM) security apparatus,and trial specific prototype.Through related testing and experimental comparison, analyse the basic properties of the transient electromagnetic prototype deeply, consider the trial of prototype has a good adaptability to the special conditions of mine, The detection accuracy of the technical reach the requirements of the test book; research combined with simulation of the special observation data processing system of mine transient electromagnetic and its key technologies, fan-shaped obverv- ing system will be used in head-on tunnel to predict geology,to replace the conventional "U-type" observing system, and improve the quality of the data collection and utilization; Combinate with off-time correction, improve the resolution of shallow goal;A further amendments to the relationship between deep-conversion coefficient of the roadway conditions have started off , and draw up a mine detection of transient electromagnetic data processing software systems.Through the scene detection on the roadway in south of guqian and exploration tracking comparative experiment on 3000m roadway, we improve the scene observati- on techniques method of Transient electromagnetic technique ,and work hard to form a convenient and practical mine transient electromagnetic technology systems for the foundation of the further detection application.The paper proposed the research direction of mine transient electromagnetic met- hod, trengthen the study degree of data collection and analysis that combined with the current research of transient electromagnetic and electromagnetic.