Coal seam exploration with special regard to the application of seismic methods for the detection of dykes

This report proposes the application of in-seam methods for coal seam exploration in connection with longwall mining. The present exploration practice is reviewed and it is shown that with the introduction of the relatively expensive high production longwall mining technique, in-seam seismic methods have become important to successful mining operations. The basics of relevant seismic methods are described and the outline is given along which research is to be conducted. As first step of this research, a program directed at the detection of dikes is presented.