METHOD TO ERECT MULTISTORY SUBSURFACE STRUCTURE Russian patent published in 2011 - IPC E02D29/55 

FIELD: construction.

SUBSTANCE: method to erect multistory subsurface structure includes arrangement of barrier wall along contour of erected structure, installation of piles in areas of design location of structure pillars, installation of floor slab at zero level, excavation of soil under floor slab and installation of floor slab of the following level and then step-by-step removal of soil and installation of floor slab of another level, including foundation slab. Each floor slab, including foundation slab, are fixed with banding beams along perimetre of slab to barrier wall, and hydraulic jacks are installed between beams and slab as additional active spacer system.

EFFECT: minimised horizontal movements of walls that enclose foundation pit and prevention of subsidence of buildings that adjoin construction site with the possibility to control process of side rocks shifting with the help of active unfixturing of barrier walls by hydraulic jacks, increased reliability and reduced deformation of structure.

5 cl, 3 dwg