ANALYTICAL METHOD ON VERTICAL LOAD-SETTLEMENT RELATIONS OF SINGLE PILE BASED ON DIFFERENCE EQUATIONS AND APPLICATION TO SAND GROUND

Abstract

An analytical method on vertical load-settlement relations of single pile is proposed based on the difference equations in consideration of nonlinear characteristics on vertical stress-strain of pile, frictional stress-settlement and point load-point settlement. A method of formulation on the relation between frictional stress and settlement is also proposed made up from shear stressstrain relation of soil. Then the procedure of analysis is mentioned on the model of bored steel pipe pile in sand ground. The results of the analysis express the behavior of pile rationally and accurately.