If you are using a type a pegs panchan stake stake must be prestressed concrete good condition along with the weight calculation of stake. And certified by the manufacturers engineers
If you are using a crane pile hammer. The concrete piles must be in good condition. And the calculation of the weight of the pile. And approved by engineers, manufacturers
If the crane pile hammer. A pile prestressed concrete must be in good condition. With the calculation of the weight of the foundation pile. Certified by the engineer and manufacturer.