Research and Application of Geophysical Prospecting Map Drawing for Irregular Working Faces

To intuitively display the comprehensive detection results of irregular working face, the radio wave perspective and transient electromagnetic technology are used to detect irregular 132155 working face comprehensively. According to the geometric shape of working face, the detection design is carried out. According to the design requirements, the survey points are laid out and the data collection is carried out. The coordinate system is established. The coordinate calculation, depth coordinate transformation and ray length are carried out in segments. The resistivity and relative attenuation coefficient are used to draw the geophysical exploration result map, and then compared with the conventional processing result map. Finally, the accuracy of the detection result is verified by the mining situation. The research shows that the drawing method of irregular working face result map can be applied to all kinds of working face; the drawing result map is consistent with the shape of working face, the geophysical prospecting result is more intuitive, the abnormal position is consistent with the actual exposure situation, and the interpretation result is relatively accurate.