Abstract
Objective of the paper is to substantiate scientifically parameters and design of energy-efficient transportation and operational schedules for ore masses transfer by means of new-generation load-haul-dumpers (LHDs) adapted to real mining environment at different development stages. Features concerning formation of cargo traffics and components of mining as well as tunneling systems in the context of uranium deposits mining have been studied. Mathematical model to identify operational indices of load-haul-dumpers has been developed. Layout features of the spaced pin-connected frame construction have been used to develop mathematical models of disturbed motion. Potential sources to improve the efficiency of load-haul-dumpers in the context of mining intensification have been analyzed.
Highlights
In the current context of uranium deposits mining in Ukraine, previously implemented projects of their development are corrected towards phased increase in production capacities of operating ore mines at the expense of implementation of the advanced technical and process design details and systems of innovative self-propelled facilities
High economic operational performance of the world mining enterprises engaged in transportation and technological schemes mastering with the use of multi-purpose loadhaul-dumpers has been the objective factor to make such design solutions [1]
That depends on the following: disproportion between performances of interdependent subsystems of underground transport arises mostly in the process of operation of diverse self-propelled facilities differing in their functional areas, designs, productivity, and energy consumption
Summary
In the current context of uranium deposits mining in Ukraine, previously implemented projects of their development are corrected towards phased increase in production capacities of operating ore mines at the expense of implementation of the advanced technical and process design details and systems of innovative self-propelled facilities. Following scientific and research problems are basic ones: – analysis of features concerning formation of cargo flows as well as mining and tunneling systems at different stages of uranium ore deposit development; – determination of operation parameters and stability of LHDs within irregular-shaped mine workings; – identification and evaluation of potential sources to improve the efficiency of innovative LHDs in the context of mining intensification; – substantiation of design parameters of transportation entries providing the efficient use of high-tech self-propelled facilities. At the same time, such activities involve extra charges; their expediency should be substantiated by means of feasibility analysis In this context, while performing a design process of high-adaptive systems of selfpropelled facilities to extract and deliver ore under real conditions of mining, each enterprise should solve problems of optimum ratio between drilling and blasting operations, operational parameters of LHDs, and parameters of haulage mine workings
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