LAUSR

Land slide in an opencast mine is a common phenomenon. It not only obstructs the mining operation but also incurs heavy economic losses as a cost of the removal of debris to facilitate mining work. Often, it also leads to the loss of valuable human lives. This problem is attributed mainly due to groundwater movement within the mines. Most suitable solution to this problem lies in the delineation of potential groundwater zones in order to pumping out groundwater to keep the sub-surface geological formations in almost dry land slide zone. Tadkeshwar lignite mine, located in Surat district of Gujarat state, India is one such mine which is facing land slide problem because of movement of groundwater in a segment of the mine. This paper describes the results of electrical resistivity tomography (ERT) carried out in the mine lease area to locate groundwater potential zones. These results are then used for the selection of suitable sites to drill bore wells for dewatering in and around land slide zone in order to prevent landslide.