Cycle Time Analysis of Open Pit Mining Dump Trucks  

作　　者：Baatarchuluun Enkhchuluun Bat-Ochir Batgerel Cao Ping Baatarchuluun Enkhchuluun;Bat-Ochir Batgerel;Cao Ping(School of Resources and Safety Engineering, Central South University, Changsha, China;Mining Institute, Mongolian University of Science and Technology, Ulaanbaatar, Mongolia)

机构地区：[1]School of Resources and Safety Engineering, Central South University, Changsha, China [2]Mining Institute, Mongolian University of Science and Technology, Ulaanbaatar, Mongolia

出　　处：《International Journal of Geosciences》2023年第8期689-709,共21页地球科学国际期刊（英文）

摘　　要：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.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.

关 键 词：Dump Truck Cycle Time Mine Haul Road Regression Analysis 

分 类 号：F42[经济管理—产业经济]