METHOD TO MANUFACTURE PILE FOUNDATION FOR PERMAFROST SOIL Russian patent published in 2012 - IPC E02D27/35 

FIELD: construction.

SUBSTANCE: method to manufacture a pile foundation for permafrost soil includes drilling of a well, placement of a pile into a well, filling of a pocket between well walls and the pile by soil or lime-sand mortar, maintaining until mortar freezing. The pile is made in accordance with the preliminary calculation, at the same time pressure at the frozen soil is calculated under the lower end of the pile, as well as resistance of the frozen soil or mortar to shift along the side surface of pile freezing within the i layer of soil, including calculation of resistance of teeth having lower and upper faces. Piles are made in accordance with calculation of an additional load for ledges of the side surface, taking into account soil resistance to lower faces of teeth, and the final formula of calculation has a given dependence.

EFFECT: higher accuracy of pile load calculation for permafrost soil, provision of optimised expenses in construction, higher reliability of a structure.

1 dwg