【摘要】 本文运用弹塑性有限元分析了扩底桩的荷载传递特性，并通过对其应力场和位移场的分析，指出扩底桩桩底土的竖向应力和竖向位移向桩底集中且收敛快，影响范围小，有效压缩层薄等特点，从而为在有良好浅埋持力层的软土地区应用扩度桩提供了一定的理论依据。更多还原

【Abstract】 This paper analyzes load tlansfer mechanism of belled pile by elashc-plastic FEM, on the basis of result of analysis, pointing out that vertical shes and displacement of soil under pile concentlating and attenuating lapidiy. That effect scope is weak and effechve compression layer is thin. These conclusions provide some thcorehcal Pad for applying belled pile in soft soil area.更多还原