Yakutniproalmaz Institute, ALROSA, Mirny, Russia

S. V. Kopin, Leading Researcher, Candidate of Engineering Sciences

Mirny Polytechnic Institute—Branch of the Ammosov North-Eastern Federal University, Mirny, Russia

I. V. Zyryanov, Head of Department, Doctor of Engineering Sciences, Professor, zyryanoviv@inbox.ru

Access to a mineral deposit and its development is governed by many factors, the most important of which are the shape and occurrence conditions of an ore body. The access of machines to different areas in a mine is made available mainly along horizontal, inclined and vertical openings driven from ground surface and to the whole depth of expansion of a deposit. Declines and inclines, if used, have a long length, which sets exclusive standards for their ventilation. The article describes some design solutions on variants of ventilation charts for the project access declines in the Yubileiny Mine of ALROSA. The reported comparative calculations used AeroSet software application. The set of programs to organize the analytical process in a computing system of the application includes advanced numerical methods and systems of solution of equations: linear, numerical nonlinear, regular differential, with partial derivatives (mathematical physics) and optimization problems. For reducing computation time, the functions of interpolation and approximation, as well as numerical integrating are used. Development of the ventilation charts for the access declines for the Yubileiny Mine of ALROSA used the double method of the reliability evaluation of the results: manual engineering design with the further analytical modeling and final checking. From the calculations, a few competitive charts are selected for the fresh air feed and return air exit. Further, it is suggested to evaluate economics of the proposed charts with final decision making on a wanted chart.

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