A Mathematical Equation for Determination of Pit Slope of Songun Copper Mine

Category Economic geology & mineral exploration
Group GSI.IR
Location The 24 Symposium of Geosciences
Holding Date 13 August 2007


Determination of slope angle is one of the important parameters in designing open pits. Selection of high slope angle may reduce safety and cause slope failure. On the other hand, with low slope angle, stripping ratio is increased considerably. Therefore, preventing failure and excessive stripping, a compromise is necessary to choose an optimum angle for pit slope. There are several methods for analyzing stability of open pit slopes such as limit equilibrium methods, physical modeling and numerical simulation. In this paper, a relative critical section of Songun copper mine in which geo-mechanical characteristics of constituents rocks are low, has been selected and analyzed with the help of numerical method (software FLAC). In the static loading conditions, for different slope angles, safety factor was determined; thereafter by regression analysis, a relationship between these parameters was developed. This equation can be used for prediction of stable angle of slope for this section and the other similar sections

tags: QAZVIN