Tricahyani, Febrianti and Ardiyansah, Riko and Dwinagara, Barlian (2019) Analysis of Physical and Mechanical Rock Properties Based on Geological Domain in the Nickel Laterite Zones at PT Antam Tbk Site Pomalaa, Southeast Sulawesi. Kyushu University, Fukuoka, Japan, Fukuoka, Japan. (Unpublished)
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Abstract
Nickel deposits operated by PT Antam Tbk, in pomalaa are dominated by serpentinized harzburgite formed from weathered ultramafic rock. The laterization divided the nickel zone into limonite, saprolite and bedrock. The geological domain of nickel laterite rocks consists of Harzburgite, Dunit, Serpentinite and Undifferentiated Serpentinite which have different mineral compositions and physical characteristics. Therefore, an analysis of physical and mechanical properties was carried out to determine whether the geological domain and deposit zone are realated to the physical and mechanical properties. The data was collected from four mining fronts based on the domain and deposit zone. It was then analyzed in the laboratory to be tested by savaral tests such as physical properties, shear and Uniaxial Compressive Strength (UCS) tests. For physical rock properties, Undifferentiated Serpentinite domain in limonite zone result in smaller value than that of Saprolite. While for mechanical properties, UCS of dunite domain in saprolite zone is relatively higher than that in limonite zone. In Harzburgit domain, the three zones, including bed rock show low cohesion. Furthermore, all domains in bedrock zone contain high cohesion. In conclusion, rock physical and mechanical properties can be used to represent geological domain and deposit zone
| Item Type: | Other |
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| Subjects: | T Technology > TN Mining engineering. Metallurgy |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | DR. Ir. MT BARLIAN DWINAGARA |
| Date Deposited: | 09 Feb 2022 08:40 |
| Last Modified: | 09 Feb 2022 09:30 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/28086 |
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