METHOD FOR MAKING A COMBINED BUILT-IN-PLACE PILE Russian patent published in 2016 - IPC E02D5/34 

FIELD: construction.

SUBSTANCE: invention relates to construction, in particular, to methods for installation of material-combined piles with rigid attachment of the cap in foundation. Method for making a carrier material-combined built-in-place pile comprises formation of a well by soil excavation or without soil excavation. When by-layer filling the well with rigid loose mixture with further compaction of each layer, the volume of crushed stone portions is being calculated by the formula: V_{crushed stone} = (from 0.5 to 1.5)·V_die·k, where V_{crushed stone} - volume of a crushed stone portion; V_die - volume of a cylindrical-conical die; k - coefficient of seal of crushed stone, crushed stone is being compacted by immersion of a rotating cylindrical-conical die with axial force, selected from a calculation where F_axial - axial force, H; R_specific - specific resistivity of the immersion of a cone in the range from 1 to 4 Mpa; d_die - diameter of a cylindrical section of the die, m. Crushed stone is being saturated to the final grade. Then, upper section of the well is being reinforced concreted to form the pile head.

EFFECT: technical result is stabilizing properties of soil bases.

1 cl, 1 dwg