DEVELOPMENT COMPLEX FOR RISE HEADINGS Russian patent published in 2009 - IPC E21D3/00 

FIELD: mining.

SUBSTANCE: development complex for rise headings consists of spacing plate with hydraulic roller-type jacks resting on preliminary installed cribwork, with rails assembled on plate, on which boring machine moves, and also of lowered down barrier with folding screen and of brackets facilitating fixation of swinging grid for operation safety; development complex is characterised with following: protecting part of complex is equipped with telescopic barrier from side of roof, in extended part of barrier there are openings for drilling bore holes, while from side of ground of development there are two skies for displacement of development complex upward along rise; also to reduce dynamic loads during drilling and blasting works there are assembled damping supports to interact with barrier by means of jacks; additionally, spacing plate is equipped with retractable heads and shock absorbers arranged along perimeter of working.

EFFECT: improved labour conditions of miners, increased reliability of support of rise headings and facilitated safety of mining operations.

5 dwg