The Test of Transient Electromagnetic Method Detected Underground Fire Zone

The research status of home and abroad are introduced to detect coal ground fire area. The foundation is with electrical difference of surrounding rock and underground coal fire area, according to the transient electromagnetic method with strong ability, high resistance layer effect and small random disturbance, small affected by terrain features, application of transient electromagnetic method experimental detected at DaTong Wang Zhuang mine, and coupled with the measurement of radon gas, the rough area was delineated the ground fire. It is laid the foundation that the method of transient electromagnetic detect coal fire area for the next application.