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

FIELD: mining.

SUBSTANCE: powered support for steep beds has linear sections of the same type, each of which consists of bottom-hole enclosure with hydraulic props of stay brace, rock-dammed enclosure with hydraulic props of stay brace, stay brace element with headpiece and support plate, which are fixed on capsule with stiffeners; at that, capsule bottom has thickening in the form of shoe, haulage element and support correction element. Stay brace element is made in the form of bellow filled with water emulsion or compressed air, which is fixed on capsule with stiffeners. At that, in front of the capsule and behind it there are extension-type brackets with haulage hydraulic jacks inside them, which are kinematically connected to extension-type traverses inside which there located are support correction jacks the stocks of which are rigidly connected to hydraulic supports of the stay brace of bottom-hole and rock-dammed enclosures respectively.

EFFECT: improving adaptability of support to dynamic evidence of rock pressure, improving stability and haulage of support, protecting bottom-hole space of long face against delamination of the roof and falls of rock pieces, and excluding gumming and jamming of support sections.

2 cl, 3 dwg