Impact Of Open-pit Mining Expansion on Slope Stability at Pt. Hikari Jeindo, Langgikima, North Konawe, Indonesia

Salu, Sahrul Poalahi; Bima, Bima

doi:10.22044/jme.2024.13924.2595

Document Type : Case Study

Authors

School of Mining Engineering, Faculty of Science and Engineering, Universitas Sembilanbelas November Kolaka, Indonesia

https://doi.org/10.22044/jme.2024.13924.2595

Abstract

Expansion of mining pit is associated with an increased risk of slope instability and high costs. This is because changes in geometry of the mine slope significantly affect slope stability, alter the stripping ratio, and potentially threaten the continuity of mining operations. Therefore, this research work aimed to investigate the impact of changes in geometry of mining pit on slope stability to provide insight into safety, economic assurances, and ensure the sustainability of mining operations. This research work was applied by the 2D numerical modeling method using the Slide Software V. 6.0 Rocscience to analyze geometry of mining pit and impact on slope safety factors. The investigation was conducted at Pit Block A of Pt. Hikari Jeindo, managing nickel mining activities in the Langgikima District, North Konawe, Regency, Southeast Sulawesi Province, Indonesia. The results showed that the modeling method successfully showed changes in slope geometry, ensuring safe and economically viable slope safety factors. However, to obtain a more comprehensive understanding of slope stability conditions, a 3D numerical modeling method is required to capture the area affected by expansion of mining pit.

Keywords

Main Subjects

Slope Stability

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Impact Of Open-pit Mining Expansion on Slope Stability at Pt. Hikari Jeindo, Langgikima, North Konawe, Indonesia

References

References

Volume 15, Issue 3May 2024Pages 943-959

Volume 15, Issue 3
May 2024
Pages 943-959