ABSTRACT: The article deals with the issues of the occurrence of various deformations in rock massifs during quarrying. It is noted that among which gravitational slope deformations in the form of landslides, screes and mudslides are of decisive importance. All these types of deformation are observed during open-pit mining of large deposits of the Almalyk ore region. As a result of the analysis of the deformation of the pit walls, the main conclusions were made. which can serve as a basis for studying and predicting landslide and other types of deformations, as well as for the construction of new quarries.

Key words: deformation, landslide deformations, quarry, crushing zones, fracturing, slush, collapses, landslides, scree, fault, tectonic cracks, reverse-slip shear, ledge stability, seismic stresses, structural strength of rock masses.