Executive Summary : | The project is aimed to the determination of the optimum safe distance of dumps from pits and design guidelines for overall stability in open pit mines in different geo-mining conditions based on analytical and numerical modelling, as well as based on field and laboratory investigations. The proposed study leads to avoiding failures or accidents, saving of considerable surface land, protecting men and property, conserving minerals, and increasing the life of the mine. The study may in detail include the following objectives: a) To study the effect of different benching configurations i.e. bench height, bench width, bench slope, overall depth of pit, overall slope angle of pit, overall height of dump, overall slope angle of dump, lithology, angle of friction& cohesion of different materials, structural discontinuities, presence of weakness planes etc. on the stability of pit slopes and dump slopes. b) To determine the effect of distance of toe of overburden dumps from the crest of the open pit on the slope stability of pits and dumps under different geo-mining conditions c) To find out optimum safe distance of toe of overburden dump from the crest of the open pit on the slope stability of pit under different geomining conditions. d) Development of design guidelines and mitigation measure for optimum safe distance of dump from pit for overall stability in open pit mines in different geo-mining conditions. |