Detection of cavities by the mise-a-la-masse and pole-dipole resistivity surveys

The underground detection of cavities is one of the most important problems for mining engineers. The mise-a-la-masse (charged potential) and pole-dipole resistivity surveys are investigated for locating natural and artificial cavities. These new geophysical methods have better resolution on the exploration targets than the conventional electrical resistivity methods. It is confirmed that the mise-a-la masse resistivity measurements are very useful for detecting and mapping the lateral changes of the formations such as cavities and fractures. The pole-dipole resistivity method has a good resolution for determining the size and depth of the anomalous body. Therefore, the combined use of these economic geophysical methods provides better resolution of locating the target of interest in three-dimensions. -Authors