Integrasi Analisis Kinematika dan Q-slope untuk Optimasi Geometri Lereng pada Kuari Batugamping Daerah Moramo Utara, Sulawesi Tenggara

Abstrak

The optimization of slope geometry in limestone quarries is crucial for ensuring occupational safety and production sustainability during complex rock mass characteristics. This study aims to determine optimal quarry slope design in Wawatu Village, Southeast Sulawesi, by integrating kinematic analysis and the Q-slope method. The novelty of this research lies in the development of site-specific empirical relationships bridging RMR, SMR, and Q-slope systems for limestone quarries in the research area. Research methods include scanline surveys, stereographic projection kinematic analysis, and rock mass classification. Results indicate that slope stability is predominantly controlled by joints and bedding, with wedge failure dominating Slopes 1, 3, and 5 (up to 69.73% probability) and toppling failure on Slope 2 (41.46%). Although the basic rock mass quality is categorized as "Good" (RMR 63–70), the SMR (53–66) and Q-slope (0.17–7.13) parameters provide more conservative assessments regarding unfavorable discontinuity orientations. Based on the Q-slope stability chart with a 1% failure probability threshold, flatter slope angles are recommended in critical areas to mitigate instability risks. These findings demonstrate that a site-specific Q-slope approach enhances safety standards while simultaneously optimizing production efficiency in open-pit mining operations.

Kata kunci

• Q-Slope
• kinematika longsoran
• kuari batugamping
• longsoran baji
• probabilitas kelongsoran