TITLE:
Cycle Time Analysis of Open Pit Mining Dump Trucks
AUTHORS:
Baatarchuluun Enkhchuluun, Bat-Ochir Batgerel, Cao Ping
KEYWORDS:
Dump Truck, Cycle Time, Mine Haul Road, Regression Analysis
JOURNAL NAME:
International Journal of Geosciences,
Vol.14 No.8,
August
17,
2023
ABSTRACT: This
study demonstrates a practical cycle time analysis of dump truck haulage system
of “Ukhaa Khudag” open-pit coal mine located in Umnugobi Province, Mongolia. It
examines the possibility of minimizing the cycle time of the haulage system as
well as factors impacting the speed of the dump truck. The current study
divides the open pit mine road for the dump trucks into five sections which are
bench road, ramp, surface road, dump road uphill, and dump road. Meanwhile, it
investigates the influence of the length, the grade, and the rolling resistance
of the road section on the cycle time. The data is analyzed using mathematical regression methods via
Microsoft Excel program. For each of the five road sections, we compare
the statistical calculations of three regression models: linear, quadratic and
exponential; thus, a total of thirty regression models are obtained in this
research. Accordingly, the cycle time for each road section is predicted by the
most accountable model. The loaded and empty direction of the movement
is measured and calculated for each road section, and it appears that the
difference between the calculated mean value and the actual cycle time of the
models is 0.82 seconds with a relative error of 2.51 percent.