METHOD FOR INCREASING LOAD BEARING CAPACITY OF PERMAFROST SOILS AND METHOD FOR INCREASING LOAD BEARING CAPACITY OF PERMAFROST AND/OR ICES Russian patent published in 1996 - IPC

FIELD: civil engineering. SUBSTANCE: method includes preparing fastening solution on the base of water, dispersed soil as filler, and small amount of polyvinyl alcohol, solution injecting into the space between foundation and host soil (ice). In necessary, preliminary soil loosing or melting, freezing fastening solution and holding it for up to five days at ambient temperature (ice) are provided. Even small additions of polymeric agent into soil solution (up to 2 per cent) increases ultimate long strength of the frozen solution/foundation mixture by a factor exceeding five. EFFECT: reduced expenditures for foundation erection. 2 cl, 1 tbl