Journal of Emerging Trends in Engineering and Applied Sciences: Research Areas

Article Title: Simulation of Loading and Haulage of Fragmented Rock in a Typical Granite Quarry in Ondo State, Nigeria
by B. M. Olaleye and P. E. Adagbonyin

Abstract:
This work analysed shovel-truck haulage system in surface mine using computer simulation method. Queueing models were used to approximate the real queueing situation, and the queueing behaviour analysed mathematically. Performance measures (average number in the queue, average time spent in the queue, probability that the queue is full or empty and probability of finding the system in a particular state) were determined. The queueing models developed were used to test the operation in a typical granite quarry for variation in the factors that affect production output. A spreadsheet (Microsoft Excel) was programmed to take in time measurements from the field and the data analysed. The various components (mean arrival rate, mean service rate and waiting times) that make up the total cycle time were established. It was discovered that the simulated values for the total cycle time were only slightly different from the actual values observed on the field. This confirmed the validity of the models. A program (LoadHaulPro 1.0) was also developed for use in calculations related to shovel-truck haulage systems in surface mines.

Keywords: rock haulage, simulation, modeling, programme, LoadHaulPro 1.0

Download full paper