Authors: E.A. Lobanov, A.A. Eremenko

Title of the article: A feasibility study of the wrap-around slope the walls and benches of overburden during mining works

Year: 2019, Issue: 3, Pages: 61-67

Branch of knowledge: 25.00.22 Geotechnology (underground, open and construction)s

Index UDK: 622.271.45

DOI: 10.26730/1999-4125-2019-3-61-67

Abstract: Determining the stability of the slopes of the pit walls is important when developing the «Oleniy Ruchey» apatite-nepheline deposit in an open way. In this regard, the purpose of the study is to establish rational angles of the sides of the slope on the marginal contour with a ledge height of up to 30 m. Research methods include assessing the mining and geological characteristics of a field, theoretical studies of the strength characteristics of rocks, and algebraic composition of forces. Calculations are made to determine the stability of the slopes of the pit walls with the corresponding factor of stability. It has been established that in these geological conditions it is not allowed to twist the escarpment of the ledge more than 60° for the weathered and 70° for the non-weathered rocks at a height of 30 m.

Key words: mining reserves deposit ore deposits rocks quarry coefficient

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