PRABANDARU, PRASODO DATU and Hendarto, Tubagus and LUSANTONO, OKTARIAN WISNU and Dwinagara, Barlian and HAQ, Shofa Rijalul (2019) An Analysis of Materials Adhesivity Level on Excavator’s Bucket in Open Pit Coal Mining. Teknik Pertambangan UPN Veteran Yogyakarta, Yogyakarta. (Unpublished)
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Abstract
This paper investigated materials adhesivity as one of the equipment productivities factors in an open-pit coal mining operation. The parameters of adhesivity investigated in this study were obtained from physical and mechanical properties of soil. The parameters were cohesion (C), density (y), grain size (% caly and % sand), moisture contents (w), plasticity index (PI), and liquid limit (LL). The data was measured from extensive laboratory testing on disposal materials, composed of clay-sized grains with the moisture content of 8.06-47.98%. The materials were also classified as a very plastic material (Plasticity Index > 17%). The relationship of several parameters as materials adhesivity level (a) was formulated using multiyariate regression analysis, used as a prediction of adhesivity levels on disposal materials. Therefore, actual adhesivity was also analyzed using physical models modified from the direct shear test as a verification. The result was quite similar with a standard devation of 0.007, suggesting that the estimation value would be applicable in open pit coal mining operation.
| 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 09:17 |
| Last Modified: | 09 Feb 2022 09:17 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/28186 |
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