#TITLE_ALTERNATIVE#

• Main Author: HEYDER WINARTO (NIM 12104093); Pembimbing : Dr. Ir. Suseno Kramadibrata, M.Sc., SATRIA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/13831
• Institution: Institut Teknologi Bandung

Coal mining activity at PT Bukit Makmur jobsite Sebuku is designed based on open pit mining system. PT. XYZ as the site owner set a fuel ratio target between fuel consumption of the vehicle that used in the waste mining process from pit (loading area) to disposal area at 0,83 L/bcm annually. But the actual ratio in May and June 2008 occurs at 0,91 and 1,00 L/bcm simultaneously. This research will focus on the design of the waste haul road that affect the fuel consumption and decide which vehicle is more efficient in fuel consumption.<p>From the field observation, I have the conclusion that the increase of road grade will increase the fuel rate of the vehicle that pass accross that road. This because the vehicle's machine have a limited Rimpull available to overcome grade resistance. To yield a heavy Rimpull, machine have to work in low gear with high RPM. This process will increase fuel consumption of the vehicle.<p>From the calculation, the HIGH fuel rate classification from Komatsu that relates with grade resistance at 190 lbs/ton (9,5% grade) on HD465, and 170 lbs/ton (8,5% grade) on HD785. The Specific Fuel Consumption of HD785 generally lower than HD465. It means that HD785 is more efficient as a waste haul truck.