Repair method of puppy hole
Shi Gan hard concrete with high strength grade is tamped bit by bit with wooden sticks.
Repair method of Dagoudong 1
Take a splayed formwork (200mm higher than the dog hole) and pour concrete with higher strength grade. The next day, chisel off the excess and smooth it with mortar.
Repair method 2 of Dagoudong
Take a splayed template (200mm higher than the dog hole) and pour high-strength grouting material. (Grouting material: grouting material for screw holes of equipment foundation, with high strength and slight expansion). I have seen it used, and the effect is good, but the price of grouting material is very high.