SYSTEM OF DEPOSIT DEVELOPMENT Russian patent published in 2009 - IPC E21C41/00 

FIELD: mining.

SUBSTANCE: invention refers to development of mineral deposits, particularly to methods of extraction of mineral deposits from beds part of which is accessible from sloping surface, while the rest part is inaccessible. Development of the sloping surface is carried out with formation of a bank and a slope to provide access to a bed of mineral deposit along the accessible part. A surface is formed in this slope to create an entry slope between the exterior wall, stretching from the entry slope, and inaccessible part of bed of mineral deposit. The initial entry is cut to enter into the bed along the whole length of the entry slope from the exterior wall to the inaccessible part of the mineral deposit bed. Sections of roof support are introduced into this initial entry with addition of waste rock for making an initial course from the exterior wall to the inaccessible part of the mineral deposit bed. Further there are used practices of development with short or long working faces to develop the said bed of mineral deposit in the direction along the initial course.

EFFECT: increase of efficiency, simplification of process of development and reduction of destructive effect to environment.

14 cl, 32 dwg