A High-pressure Water Jet Assisted Pile Pulling Device and the Construction Method

The invention discloses a high-pressure water jet assisted pile pulling device, wherein an annular water storage chamber is connected with a water pump through a water inlet pipe, and the bottom of the annular water storage chamber is provided with a circular slot; the output shaft of a driving motor in a driving area is fixedly connected with a driving gear, and the top of an annular slider is provided with an annular groove embedded in the circular slot, and the outer side is provided with serrations, and the driving gear is connected with the serrations; the cutting area being fixedly connected with the bottom of the annular slider through a communicating pipe, and the retractable spray pipe of the cutting area is externally embedded in the annular cutting track along the radial direction, and the inner of the retractable spray pipe is provided with at least a water pipe.