OPTIMAL PLACEMENT OF LOADING CROSSCUTS IN MINING AND TUNNELLING
Abstract
An application of dynamic programming in searching for a cost-effective solution how to placement of loading crosscuts facilities in mining or tunneling is presented. Purpose of the work was to provide a decision-making support for placement of such facilities at minimum costs. The task is to find optimal distance between loading crosscuts within excavation of two parallel drifts as horizontal or subhorizontal development openings in mine. Analogically, the problem can occur at excavation of two parallel tunnel tubes in railway or road infrastructure development. The case supposes linked two-stage haulage of excavated material in a defined perspective of transport using load-haulage-dump vehicle and train with trip. Formulation of exact solution by dynamic programming, testing in concrete conditions in mine development as well as comparisons with results of enumeration are presented.
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