Based on nonlinear finite element calculation

the influence of size effect of pile on load-bearing behaviour of rock-socketed pile is analyzed. The results show that the rock-socketed depth-diameter ratio decreases with increasing diameter of pile while other conditions are invariable

bearing capacity of pile takes on increscent trend due to chiefly bearing pressure of pile tip enhancing. Additionally

socketed depth influences the bearing properties

the shorter socketed depth

the more strength load-bearing of pile tip. So the bearing capacity can be enchanced by enlarging pile diameter in course of design.