ASSEMBLY OF SHIELD SUPPORT FOR UNDERGROUND MINING AND ELEMENT OF SUPPORT SURFACE Russian patent published in 2013 - IPC E21D23/04 

FIELD: mining.

SUBSTANCE: invention is related to assembly of a shield support for underground mining, comprising a shield canopy and at least one floor beam as elements of the support surface, which are hingedly connected and may be pressed to the rock with the help of at least one hydraulic cylinder, which is maintained in support troughs on the shield canopy and the floor beam. At the same time each element of the support surface comprises a welded structure from components welded to each other. At least one element of the support surface comprises at least one hollow metal boxy profile filled with a solid substance as a component of the support structure. The invention also relates to a configuration of the floor beam and/or the shield canopy with at least one hollow metal boxy profile filled with a solid substance, preferably, concrete.

EFFECT: provision of high load maintenance without increasing total weight.

44 cl, 8 dwg