高承台锥形嵌岩灌注桩的屈曲稳定分析

o discuss the buckling problem of cast-in-situ tapered section rock-socketed pile with highrise cap, the buckling analysis model of this kind of pile was fist established with proper pile deflection function chosen as well. Then, the total stationary of the pile-soil system was deduced. And the formula of the buckling load was obtained by the minimum potential energy principle. Based on the obtained solution, an extensive comparative analysis was made, which indicates that, under the condition of same material and geometry of pile shaft, embedded length and surrounding soil texture, the buckling stability of the tapered section pile is much better than that of traditional constant section piles.