| Coal mine flood has been to a huge threat of the coal mine production safety,the primary one is mine roadway in front and top-bottom buried the lead in water,it can easily cause water inrush.TEM used in coal mine work of exploring water has its advantages in technical ,the main is more sensitive , including God water and water structure.TEM can detected within 150 meters.it applied in many mines , the effect is obvious.The transient electromagnetic method is the theory of emerging in recent years,the application is very wide, the hardware is more mature, but the theory and treatment research is more behind, with little for the TEM in mine data collection processing software, a large number of reading related to this article literature, the combination of electromagnetic detection mechanism and technology to develop a set of downhole TEM processing software.The main achievements and innovations are as follows:1)Data collected through the underground, a multi-channel diagram analysis can clearly show that the shallow and deep high and low resistivity anomalies.2) More intensive underground sources of interference, through mathematical means, take a variety of filtering methods, including wavelet analysis and Hilbert Huang transform cutting-edge theories and methods of transient electromagnetic signal denoising, to remove noise, smooth curves, highlights The purpose of exceptions.3) When calculating the apparent resistivity, using the same point loop device of apparent resistivity formula, the formula to avoid the late Road, causing deviation from the early data is too large, shallow geological information distortion4) After time-depth conversion in the depth correction, and for different degrees of geological complexity, using a variety of correction methods in order to better identify abnormal body depth.5) Mapping software in the surfer, the details of the sections and slices the specific practices and the process of mapping the details of some properties.
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