Geometric Redesign and Cut-and-Fill Volume Estimation of a Non-Compliant Mine Haul Road at Pit Banko Tengah A, South Sumatra

Dwi Lestari (Department of Mining Engineering, Faculty of Engineering, Universitas Negeri Padang)
Syari Rahma Yanti (Department of Mining Engineering, Faculty of Engineering, Universitas Negeri Padang)
Tri Gamela Saldy (Department of Mining Engineering, Faculty of Engineering, Universitas Negeri Padang)
Rangga Agung Pribadi Heriawan (Department of Mining Engineering, Faculty of Engineering, Universitas Negeri Padang)

MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering
Vol 8 No 2 (2026): Motivection : Journal of Mechanical, Electrical and Industrial Engineering

Mine haul roads must satisfy geometric standards to ensure safe and reliable heavy-equipment mobilization. This study evaluated the inactive Tesla haul road at Pit Banko Tengah A, South Sumatra, for reactivation using Komatsu HD-785 rigid dump trucks. Existing road geometry was assessed against operational standards, followed by 3D spatial redesign and cut-and-fill volume estimation in hilly terrain. The results showed that several straight segments require widening, with the largest correction reaching 7.93 m to meet the 24 m standard. Segment 5 also requires curve widening and superelevation correction, with actual superelevation of 0.064 m compared with the 1.223 m design requirement. Road grades remained within the 8% maximum limit. The redesign produced an excavation-dominant earthwork profile, consisting of 203.92 BCM of cut and 9.79 BCM of fill. These findings provide a practical basis for planning haul-road reactivation while aligning geometric compliance with earthwork requirements.