Gorbachev Kuzbass State Technical University, Kemerovo, Russia:

A. I. Kopytov, Professor, Doctor of Engineering Sciences
V. V. Pershin, Head of Chair, Professor, Doctor of Engineering Sciences, L01BDV@yandex.ru
Yu. A. Fadeev, Professor, Doctor of Physic-Mathematical Sciences
A. A. Weti, Post-Graduate Student

In order to protect shaft sinking workers, artificial safety equipment (buntons) with the support element made of powerful I-beams or truss structures is used. The buntons should withstand enormous push loading, be strong, simple in design, have low labor input in construction and dismantling. During servicing skip hoist in the cause of shaft sinking, a protective bunton can be exposed to rock flow in case of accidental self-empting of the skip. As a result of research and mathematical modeling of the dynamic load from the power impact of rock flow during accidental self-empting of skip, SibGorComplexEngineering together with the Chair for Underground Construction and Mines at the Gorbachev Kuzbass State Technical University have developed a new design of protective buntons for vertical shaft sinking in case of servicing skip hoist. This is a Z-shaped structure of the offset height, mutually parallel upper and lower protective buntons, bushed with sloped reflective metal sheets and interconnected by a vertical division wallThe bunton design allows manifold reduction in the push loading impact owing to redirection and kinetic energy dissipation of falling bodies. Industrial testing have proved high reliability, efficiency and safety of the new-design V-shaped protective bunton in Skipovoi shaft sinking sat the Gornaya Shoria division of Evrazruda.

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