Method of Computing Open Pit Slopes Stability of Complicated-Structure Deposits

In substantiation of the parameters of stable open pit slopes of complicated-structure deposits it is necessary to take into account a number of natural and anthropogenic conditions of the open pit side masses, such as: lithological heterogenity, plicative and disjunctive tectonic broken state, rocks laminated structure, form of the open pit side, hydro-geological conditions of the deposit development, the mining-transport equipment loading effect, etc. In the article there is suggested a solution of this problem consisting in the improving of numerical-analytical method of professor P.S. Shpakov, whose advantage is the accounting if stresses acting on the elementary ground based on integrated effect of all the acting factors. The essence of the solution con-sists in the following: with a unified algorithm of realization (numerical solu-tion, iteration method) every time there is built a new analytical formula of the limit equilibrium corresponding to the concrete mining-technical and mining-geological conditions permitting to establish the mechanism of the possible de-forming of open pit slopes.