抄録
In the present study an analytical procedure is developed, based on finite element approach, to determine the bending moment and lateral deflection response of a free headed single pile with floating tip embedded in both dry and saturated cohesionless soils subjected to combined action of vertical and lateral loadings, using the modulus of subgrade reaction method. Also the numerical results using MIDAS GTS are obtained to validate the proposed analytical solution. It is observed under static conditions, when the vertical load is increased from zero to the ‘ ultimate’ pile capacity at 0.03D deflection level (where D is the diameter of the pile), the lateral load carrying capacity of the fixed headed and free headed flexible piles is increased by 43.27% and 26%, respectively embedded in dry dense sand. Similarly for fixed headed piles embedded in dry and saturated loose sand, the bending moment is increased by 25% and 27%, respectively when vertical loads varies from zero to ultimate pile capacity for a constant lateral load of 200kN.Thus the above analysis is useful for practical design purpose to estimate the lateral load carrying capacity of a single pile by knowing the allowable deformation and vertical load acting on the pile.
