METHOD TO CORRECT IRREGULARITIES OF BUILDINGS AND STRUCTURES SUBSIDENCE ON SLAB FOUNDATION Russian patent published in 2012 - IPC E02D35/00 

FIELD: construction.

SUBSTANCE: method to correct irregularities of buildings and structures subsidence on a slab foundation includes setting of vertically aligned injection conductors and injection of a fluent mortar under a part of the building towards list. Prior to start of fluent mortar injection via conductors installed along the perimetre of the reinforced part of the foundation, soil is soaked to cause its weakening. Then via the same conductors injection of the fluent mortar is carried out under pressure causing a hydraulic rupture of weakened soil. After hardening of the mortar, injection of the fluent mortar is carried out inside the produced contour. Additionally the building is settled at the side opposite to list, and after balancing the building position is fixed by supply of the fluent mortar into conductors at the side opposite to the list.

EFFECT: higher efficiency in expansion of correction range for a most sunk part of a foundation, reduced material intensity.

4 cl, 3 dwg