In-situ mud-making construction method for wall retaining pile construction

The invention discloses an in-situ mud-making construction method for wall retaining pile construction. The in-situ mud-making construction method comprises the specific steps of surveying and settingout of the position of a crown beam area, sectional excavation of the crown beam area, mud making in the crown beam area, surveying and positioning of the position of a pile hole, reaching of a drilling machine in place, hole making, hole forming, hole cleaning, reinforcement cage lowering, concrete pouring, and machine moving to the next pile position. Excavation of a settling pool and a mud pool for mud making in a traditional process is eliminated, a crown beam constructed later is utilized as a mud-making pool, the construction cost of excavating, clearing and filling of the settling pooland the mud pool is saved, and the construction period of the wall retaining pile is shortened; after the settling pool and the mud pool are subjected to mud making, a large amount of mud is wasted,the mud congealed in the cr