The results show that pile efficacy is significantly affected by piles interval, embankment height, cap size and pile-subsoil stiffness ratio, while shear modulus of embankment fill has less effect and geotextile strength has a little effect.

• 结果表明：桩间距、路堤高度、托板宽度及桩土相对刚度对桩体荷载分担比影响较大，路堤填土剪切模量的影响次之，而水平加筋体拉伸强度的影响很小。