Surpac taille
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It is concluded that Surpac and Whittle software combine as a powerful tool for designing an optimal pit. From the optimal pit, a detailed pit designed with circular ramp was selected over one with all-cut ramp since it had a higher expected revenue and lower stripping ratio. The NPV was very sensitive to gold price changes but marginally sensitive to mining cost changes. The optimal pit had 21.19 Mt of ore at an average grade of 1.557 g/t. Pit 36 was chosen having the highest the Net Present Value (NPV) 10% of $338.60 million. During the optimisation, a total of 82 optimal pit outlines were generated using the 3D Lerchs-Grossmann algorithm. The block model grade was estimated using the Inverse Distance Weighting (IDW) method, giving an average grade of 1.533 g/t with 22.79 Mt of ore. Sections through the deposit were used to create a solid model of the orebody, which was divided into blocks to form a block model comprising unit blocks measuring 20 m x 20 m x 10 m. The deposit has undergone intense weathering, forming an oxidised gold deposit up to about 50 m in depth. The work entails: block modelling of MGMP deposit pit optimisation analysis of the Pit NPV’s sensitivity to changes in gold price and mining cost and detailed pit design. Exploration data from Mpeasem Gold Mining Project (MGMP) is used as the primary input for the work. GEOVIA Surpac v2021 GEOVIA MineSched v2021 GeoModeller 2019 v4.0.7 圆4 GeoTeric SVI 2021 GOHFER v9.2 GOGEO FracPredictor v2014 Green Hills MULTI for MIPS v4.2.1 Green Mountain mesa v15 GT-SUITE v2020 Gxplorer v2020 Hampson Russell Suite 10.6 .R460.1 8.0.1 Win HYPACK v2020 Interactive Petrophysics v4. more This paper studies the Surpac and Whittle software and their application in designing an optimised pit.
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#Surpac taille full
The position will be offered on a residential basis along with a full relocation package. For our client, a world leading mining organisation, we are searching for a Technical Services Manager to be based at the corporate Head Office.