OVERVIEW OF OPENING SCHEMES FOR DEEP HORIZONS OF DIAMOND ORE QUARRIES IN THE FOCUS OF TECHNOLOGY FOR REFINING RESERVES BY TUNNEL EXITS

Abstract

The article discusses the opening schemes for deep
horizons of diamond ore quarries, achievements
and promising developments on the field of deposits opening methods. These include opening with
steep-slope automobile ramps, opening with the use
of lifting installations (conveyors, skips) and specialized devices (cranes), opening with the use of
specialized modes of transport (road trains), as
well as opening with underground mining using
self-propelled and stationary transport equipment.
The advantages and disadvantages of penetrating
schemes are analyzed. Schemes using steeply inclined truck ramps appear to be most dynamical
according to its execution period, and technologies
with underworking and lifting equipment are characterized by longer terms of construction, but they
provide usually much deeper mining.