METHOD FOR UNDERGROUND STRUCTURE ERECTION Russian patent published in 2013 - IPC E02D29/45 

FIELD: construction.

SUBSTANCE: method for underground structure erection includes arrangement of walls in soil along the pit contour, stage-by-stage soil excavation, arrangement of a slab with support against walls and dismountable inventory structures, concreting of a foundation slab, with subsequent erection of capital vertical bearing structures, fixation of slabs on them and dismantling of inventory structures. Between walls arranged along the pit contour in soil they first partially excavate soil, then an inventory structure is installed with a support against soil and walls. A slab is arranged with support against the inventory structure and walls, afterwards soil under the inventory structure is extracted. Additional struts are mounted into a thrust between walls and units of the inventory structure, afterwards the remaining part of the pit soil is excavated, the foundation slab is concreted. Then the bearing vertical walls and/or pillars are installed, the slab is rested against them, and inventory structures and struts are dismantled.

EFFECT: reduced steel consumption for inventory structures, simplification of an inventory structure and reduction of its weight, simplified technology of underground structure erection.

4 dwg