The development of technology schemes of formation of external dump of different types of rock in landslide conditions

Abstract

Purpose. The scientific and practical purpose of the study is to develop and substantiate techno- logical schemes for the formation of external dumps in conditions of impaired stability during the development of iron ore deposits. Research methods. To solve the problem, the following research methods were used: geo-mechanical methods for studying changes in the stress-strain state, modeling of technological solutions by variants and graph-analytical method for calculating the stability of slopes for different variants for the development of work on the dump. Findings. The use of the technique to determine the stability of the dump sides allowed to calcu- late the parameters and determine the prisms of possible landslide. The safety factors or different variants of work development are obtained, on the basis of which the most expedient way of restoration of dump works in conditions of the formed landslide is chosen. Technological schemes have been proposed and developed for the external dump No 2 of the Central Mining and Processing Plant, which allow to continue its operation in future.