The geomechanical classification SMR (Slope Mass Rating) enables the preliminary assessment of the susceptibility of rock slopes to failure. The SMR index is obtained from Bieniawski’s basic RMR (Rock Mass Rating) through an “adjustment factor” and an “excavation factor”. Since its appearance in 1985, this classification has been used for appraisals and preliminary studies in many countries. Th...

Strata and surface movement induced by mining under open-pit final slope is a huge 8 threat to mine safety. Physical model test is an important method to study mining-induced strata 9 and surface movement laws. Because of rock joints predominantly control rock mass deformation 10 and failure, thus physical model test leaving out of consideration of rock joints is difficult to reflect 11 the inf...

Abstract PT. Nusa Cendana is a mining company operating andesite in Taman Ayu Gerung Village, District, West Lombok Regency, Tenggara Province. Andesite criteria are classified as hard and difficult to separate. carries out activities with quarry system. has problem on the slopes because current slope 85°, many joints cause landslides. Ideally, 70°. Slope stability used determine slope’s safety...