If the geology condition is better, the physical model of man_dug pile can be regarded as end_bearing pile by reasonable simplification without considering the friction resistance of the soil.

Piles socketed in soft rock were traditionally regarded as end bearing piles, and the loads transferred from superstructure were assumed in design to be shouldered totally by the piles.

Theoretically the single pile vertical bearing capacity of rock-socketed pile is composed of the frictional resistance, the socketed force and the end-bearing force.