Protective wall of manual hole digging pile and construction method of protective wall of manual hole digging pile

The invention provides a retaining wall of a manual hole digging pile and a construction method of the retaining wall of the manual hole digging pile, and relates to the technical field of manual hole digging pile construction.The retaining wall of the manual hole digging pile is characterized in that in the process that the retaining wall is installed in a pile hole, a fore shaft ring (10) is arranged at the top of the pile hole, and the outer diameter of a standard knot (20) can be matched with the inner diameter of the fore shaft ring (10); in the pile hole excavation process, each standard knot (20) is installed by being arranged in the locking ring (10) in a sleeved mode, the previous standard knot (20) is automatically connected with the next standard knot (20) in a clamped mode under the action of vertical force, the standard knots (20) integrally move downwards under the action of the vertical force, the lowermost standard knot (20) is made to make contact with the hole bottom of the pile hole all the