COMPACTING STRUCTURE Russian patent published in 2014 - IPC E01D19/14 

FIELD: construction.

SUBSTANCE: compacting structure contains: (a) the first pressing element from stiff material; (b) a transition cushion from deformable material; (c) a compacting cushion from elastic material and (d) the second pressing element comprising a stiff layer to press the transition cushion and the sealing cushion to the first pressing element. The transition cushion, the sealing cushion and the second pressing element are provided with holes for letting stretching elements through. When functioning in the working position, the first pressing element, the transition cushion, the compacting cushion and the second pressing element are pressed.

EFFECT: possibility to compact the inner part of a construction element.

14 cl, 7 dwg