CASE STUDY OF THE IMAPCT OF SEEPAGE AND GROUND WATER ON THE STABILITY OF MINE SLOPES

G.S Kate, M.Aruna

Abstract: The present study is focussed on the investigation of the impact of seepage and ground water on the stability of mine slopes. Case study of three iron ore mines have been considered in Goan region. Out of three mines under consideration at one mine the effect of groundwater was observed and in remaining two mines the effect was not prominent. In this study, GALENA software were used for limit equilibrium method. From the mines rock/soil samples were collected and they are tested for determining the physio-mechanical properties like density, cohesion, angle of internal friction, young’s modulus and Poisson’s ratio. Using the results of laboratory studies, analysis of pit slopes have been carried out using GALENA software. Wherever, the existing/planned ultimate pit slopes angles are not stable, i.e. if their factor of safety (FOS) is below 1.3, proper measures for improving their stability were suggested

Keywords: Limit Equilibrium Method, Pit Slope, Slope Angle, Factor of Safety (FOS).

DOI: https://doi.org/10.15623/ijret.2017.0601021