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

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Salu Sahrul Poalahi; Bima Bima

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Journal Paper

Paper Information

Journal: JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES) Year:2024 | Volume:15 | Issue:3 Page(s): 943-959

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Information Journal Paper

Title

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

Author(s)

Salu Sahrul Poalahi | Bima Bima | Issue Writer Certificate

Keywords

Slope Stability

stripping ratio

construction and pit

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.

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