The Conceptual Method of Crosswell Seismic Reflection for Underground Coal Mine Planning in Indonesia

Abstract The typical problems that associated with underground coal mine in Indonesia consist of the behaviour of rock mass, geological structures, underground mine support, etc. Boreholes are mainly drilled to provide the information of deposit quantity and geological structure. The presence of geological structure in underground coal mine can lead instability during development and inaccurately of deposit calculation. In complex geologic al structure area, it is difficult to detect fault between two adjacent exploration boreholes because those only provide excellent vertical information but very poor in lateral continuity. Therefore, the additional information between exploration boreholes is needed. The conceptual method of crosswell seismic reflection method which provides high resolution both of vertical and horizontal resolution is proposed in this study.