PILE AND METHOD OF ITS ERECTION Russian patent published in 2014 - IPC E02D5/42 

FIELD: construction.

SUBSTANCE: pile comprises an outer shell from compacted soil layer with addition of a soil-strengthening additive and a pile body from solid material. The outer shell of the pile comprises a compacted layer of soil and a layer of compacted clayey soil with a soil-strengthening additive adjoining the pile body, made of a shell from low-grade fine-grained concrete and a central rod from high-grade coarse concrete reinforced by a metal frame.

EFFECT: increased bearing capacity of a pile due to increased area of a lower base of a pile and increased force of soil resistance acting along side surface of a pile, by increasing area of side surface of a pile, increased density of soil interacting with a pile and extent of pile body compression with soil.

5 cl, 7 dwg