POWERED SUPPORT FOR STEEP BEDS Russian patent published in 2011 - IPC E21D23/00 

FIELD: mining.

SUBSTANCE: powered support for steep beds of moderate thickness and with thickness of up to 5-6 m consists of identical mutually replaceable linear sections. Each of linear sections includes roof bar, bottom, capsule of equipment compartment, goaf and wellbottom enclosures, and also elements of thrust, push and correction. Rubber pneumatic stands reinforced with metal net and hoops, which together with roof bar rest against slab and power frame and further against bottom are used as element of thrust and spreading. Besides, inside power frame there is a capsule of equipment compartment with the possibility of its extraction for equipment diagnostics and repair.

EFFECT: increased resistance and improved pushing of lining, capsule preservation against exposure to mining pressure.

3 cl, 3 dwg