Computer Simulation Model for Surface Mine Reclamation Planning. Volume 2. Dragline Model

摘要

The report is Volume II of the documentation of a computer simulation model for surface mine reclamation planning. The dragline model described in this volume simulates the movement of the dragline bucket across the digging face, the swing load, the dump, and swing back. It is programmed to handle chopdown, key cut, main cut, and rehandling operations. Provisions have been made for simulating equipment and mining delays. Any mining method can be specified in terms of numbered blocks, the dragline positions for the mining block, and the dumping location for the block. Accounting procedures permit the calculation of production rates, rehandle volume, dig, and delay times. The model can be used to study the effects of varying mining conditions, cut width, and spoiling sequence with special reference to toxic spoil, overburden, and bench removal procedures. The basic input data for the model include machine parameters, the geology and material characteristics, the mining parameter, and the delay characteristics of the equipment.