Construction method suitable for manual hole digging foundation of gravel foundation

The invention relates to the technical field of electric power foundation construction, aims to solve the problem that a pit wall of a gravel foundation excavation foundation pit is easy to collapse, and provides a construction method suitable for a gravel foundation manual hole digging foundation, and the construction method comprises the following steps: S1, processing a self-propelled hollow anchor rod, and forming a slurry outlet hole in the length direction of the anchor rod; s2, a circle of self-propelled hollow anchor rods are implanted into the outer side of the foundation pit to be excavated; s3, pressure grouting treatment is conducted on the broken stone of the pit wall from all the anchor rods through pressure grouting equipment, and the broken stone foundation is reinforced; s4, the foundation pit is excavated, stirrups are installed in the pit in the excavation process, and the stirrups are bound with the anchor rods in the circumferential direction; s5, after the foundation pit is excavated to