DEVELOPMENT METHOD OF FLAT AND INCLINED THICK ORE BODIES Russian patent published in 2013 - IPC E21C41/22 

Abstract RU 2472932 C1

FIELD: mining.

SUBSTANCE: method involves development of ore resources, which is performed in two stages. Producing block is divided into ore body falling sections consisting of two primary chambers as to the spread and one secondary chamber consisting of inter-chamber chain pillar and bottoms of primary chambers. Protective pillars are left between blocks. At the first development stage there excavated are primary chambers as to spread to the height of up to 8 m with one working face using self-propelled vehicles and roof and walls of primary chambers and roof above inter-chamber pillar are fixed by installing anchors with mesh. At the second stage there extracted are resources of inter-chamber chain pillars and bottoms of primary chambers to drilling and delivery working-outs between protective chain pillars with width of 2.5-3 m, which are left between sections.

EFFECT: invention allows improving development efficiency, increasing ore production and reducing losses and impoverishment.

2 cl, 5 dwg

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RU 2 472 932 C1

Authors

Makhrakov Ivan Vasil'Evich

Tatsienko Viktor Prokop'Evich

Ibatullin Mustafa Ibragimovich

Gurtovoj Jurij Ivanovich

Matveev Vitalij Vital'Evich

Kornaushenko Aleksandr Petrovich

Dates

2013-01-20Published

2011-09-19Filed