Slope stability and bearing capacity analysis of disposal in open-pit coal mining

Abstract

Open-pit mine is a mining method by excavating overburden strata to get coal seam near the surface. One of potential hazard often occur in mining area is slope failure. The hazard can be prevented by performing geotechnical study. The study is required to provide recommendations regarding safe design of slope geometries in both open-pit and disposal sites. This paper produce information related to the results of slope stability analysis especially on the disposal embankment. The analysis is performed by using the limit equilibrium method. It is also produce the bearing capacity analysis of subsurface strata in disposal site. The analysis is carried out to determine the ability of the strata to burden the load of disposal embankment above. The location was selected in a site of open-pit coal mine in Indonesia. The results will become consideration for management in designing slope disposal and choosing the location of disposal facilities.