METHOD TO ERECT PILE FOUNDATION Russian patent published in 2012 - IPC E02D27/28 

FIELD: construction.

SUBSTANCE: method to erect a pile foundation includes installation of piles and reinforcement of a near-pile soil by means of its reinforcement with a solution of a hardening material. Prior to installation of a pile a well is drilled with a diameter of not more than 1/3 of the pile diameter. The well is filled with a strengthening solution. The pile is submerged into the well filled with the strengthening solution to form a strengthened and a compacted zones under a foot and around the pile shaft, and such zones are shaped as a hemisphere below with a truncated cone above, besides, the strengthened zone reinforced with the strengthening solution and arranged in the volume of the compacted zone is adjacent to the pile.

EFFECT: increased efficiency of soil strengthening around a pile, higher bearing capacity of piles, reduced labour intensiveness and material intensity.

3 cl, 2 dwg