Influence of the faces relative arrangement on the optimal reloading station location and analytical determination of its coordinates
Journal Title: Вісник Житомирського державного технологічного університету. Серія: Технічні науки - Year 2017, Vol 79, Issue 1
Abstract
The purpose of this study is to develop a methodology of the optimal rock mass run-of-mine (RoM) stock point determination and research of the influence of faces spatial arrangement on this point. The research represents an overview of current researches, where algorithms of the Fermat-Torricelli-Steiner point are used in order to minimize the logistic processes. The methods of mathematical optimization and analytical geometry were applied. Formulae for the optimal point coordinates determination for a 4 faces were established using the latter methods. Mining technology with use of reloading stations is rather common at the deep iron ore pits. In most cases, when deciding on location of RoM stock, its high-altitude position in space of the pit is primarily taken into account. However, the location of the reloading station in a layout also has a significant influence on technical and economic parameters of open-pit mining operations. The traditional approach, which considers a point of the center of gravity as an optimal point for RoM stock location, does not guarantee the minimum haulage. In mathematics, the Fermat-Torricelli point that provides a minimum distance to the vertices of the triangle is known. It is shown that the minimum haulage is provided when the point of RoM stock location and Fermat-Torricelli point coincide. In terms of open pit mining operations, the development of a method that will determine an optimal point of RoM stock location for a working area with respect to the known coordinates of distinguished points on the basis of new weight factors is of particular practical importance. A two-stage solution to the problem of determining the rational point of RoM stock location (with a minimal transport work) for any number of faces is proposed. Such optimal point for RoM stock location reduces the transport work by 10–20 %.
Authors and Affiliations
V. К. Slobodyanyuk, I. I. Maximov, R. V. Slobodyanyuk
Keywords
Related Articles
- EP ID EP255478
- DOI -
- Views 100
- Downloads 0
Method of determination of the critical obstacles height that can be overcome by a car at a given rate of rectilinear motion without losing lateral stability
The mobility of combat vehicle is the key to its survival. The movement of military wheeled vehicles over rough terrain is tightly linked to the risk of tipping while overcoming obstacles that require modeling the stabil...
Study of trends in the trucking market in modern conditions
The article analyzes the features of the transport services market in accordance with its segmentation from the position of statistics on the field of automotive freight. The tendencies of development dynamics and road t...
Increase of manufacturability of manufacturing of difficult profile details
The analysis of existing problems arising in the process of manufacturing such complex profile parts as gears is carried out. The possible ways of simplifying the technological processes with the aim of improving the eco...
Computer simulation of temperature fields in a six-punch high-pressure apparatus with a change in the composition of the composite heater
Today, six-punch high-pressure apparatus of cubic type are perspective for growing single crystals of diamond by the temperature gradient method. Experimental determination of the temperature distribution in the growth v...
Traffic control on a railway crossing with elements of utility theory
An approach to the management of vehicles at a railway crossing in order to improve the road safety is considered. To do this, it is suggested to introduce the dynamic motion control modes on the road, which consist in r...