METHOD FOR STRAIGHTENING OF SLANT IN BUILDING ERECTED ON PILE FOUNDATION Russian patent published in 2010 - IPC E02D35/00 E02D27/08 

FIELD: construction.

SUBSTANCE: method for straightening of slant in building erected on pile foundation consists in the fact that new piles are installed in foundation grill of longitudinal external building wall arranged towards slant, and piles in foundation grill of longitudinal external building wall arranged on the side opposite to slant are "disconnected" from operation. In process of slant straightening, inside building basement, new piles arranged in separate section along their length are submerged into openings cut in foundation grill slab by indent device. Pile head is fixed in foundation grill slab with the help of metal cross beam and anchors embedded by high-strength glue into foundation grill openings. Then pit is dug near row of piles arranged on the building side, which is opposite to slant, and the pit provides for access to pile heads, which are cut by value Δ=ib, where i is slant of building, b is width of building towards slant. Heads of cut piles are previously strengthened by metal bands with sealants arranged by high-strength polymer compounds, and adjustment of bearing capacity F_d of new piles in process of slant straightening and building operation is carried out with the help of indent device, using cross beam, which is installed onto pile head, and using cross beam, jack is used to indent pile to the necessary force, afterwards cross beam is fixed by nuts on anchors till straightening and stabilisation of building slant. Indent device is dismantled, and after building slant has been straightened, cut piles are "connected" into operation with the help of concreting.

EFFECT: reduced labour intensiveness and improved reliability in process of building slant straightening, provision of slant adjustment in process of the following building operation.

3 dwg