Pile-end post-grouting construction and grouting failure treatment device and method

The invention discloses a pile-end post-grouting construction and grouting failure treatment device and method. The pile-end post-grouting construction and grouting failure treatment device comprisesa grout mixing truck and a high-pressure grouting bin, wherein the grout mixing truck comprises a mixing truck body; a driving battery and a mixing tank are fixedly mounted on the outer wall of the top of the mixing truck body; a mixing motor is fixedly mounted on the outer wall of the top of the mixing tank; the end, penetrating through the mixing tank, of the output shaft of the mixing motor iswelded with a mixing rod; and the mixing rod is positioned inside the mixing tank. The pile-end post-grouting construction and grouting failure treatment method comprises the steps of determining a mounting position of a grouting disk before pile forming of a cast-in-place pile, and pre-embedding the grouting disk at the bottom end of the pile so as to finish the pre-embedding of the grouting disk. The pile-end post-grouti