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IJSTR >> Volume 9 - Issue 7, July 2020 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Coal Resources Calculations Using Block Model And Cross Section Method, In Pt. Natural Earth Regency Of Kutai Kartanegara East Kalimantan, Indonesa

[Full Text]






Block Model, Cross-section, Stripping Ratio.



In the world of mining, calculation of reserves was the most decisive in exploration activities. The results of the calculation of coal reserves were needed to evaluate the economic value of a mining operation to be planned. Observation of fundamental data in the calculation of reserves was in accordance with the level and accuracy in retrieving the data. Therefore, so that mining activities can be done easily then the required supporting software that can simplify the calculation and modeling. The purpose of this research was to calculate the reserves of coal by using two methods include methods of block model and cross-section method. In this study, the acquisition of the coal obtained from the comparison between the methods of block model and cross-section method. Calculation of coal reserves by stripping ratiowas not more than 7: 1. The block method model the obtained results 13,646,218.25 MT of coal reserves and overburden volume of 91,472,579.44 BCM. While the section method the results obtained by 14,540,371.3 MT of coal reserves and overburden volume of 92,547,132 BCM. Comparison of the two methods produce different amount of coal reserves in the same mining pit design. because the accuracy of the calculation was not the same. Factors that lead to differences in methods of calculation of reserve block model of the method was calculated based on the volume of blocks with dimensions adapted to the conditions of the sediment in the area. While the cross-sectiol method was that the volume was calculated based on a model that can represent a cross-section model of sediment in the area



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