The characteristics of rock socketed pile is mainly decided by rock sockets. Based on shear expansion rule that is supposed to govern the pile-rock interaction
this paper uses load transfer theory to create a new load transfer function and generates a set of formulae suitable for soft rock socketed piles. Through analysis of these formulae and practical test results
it satisfactorily explained the relationship between pile-end resistance and socketed ratio H/D
investigated the effect of rock asperity and bottom quality
etc. on pile settlement and pile-end resistance
and also proposed some useful suggestions for socketed pile design.