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通过模型试验研究了竖向荷载作用下长径比为25时,不同倾角的斜桩的承载变形及荷载传递性状,并与竖向荷载作用下的直桩的承载变形及荷载传递性状进行了比较。试验结果表明:斜桩的桩顶沉降大于直桩的桩顶沉降,斜桩桩身倾角越大,斜桩的桩顶沉降超过直桩的桩顶沉降越多;斜桩桩身轴力均小于直桩桩身轴力,斜桩桩身倾角越大,桩身轴力沿深度衰减得越快;斜桩桩身弯矩主要发生在桩体上部1/2桩长范围内,且随着桩身倾角的增大而增大,桩身最大弯矩出现的位置与桩身倾角无关。斜桩桩侧平均摩阻力的分布与桩身倾角密切相关;斜桩最大桩侧平均摩阻力出现在桩顶下约1/5桩长处。
Through the model test, the load-bearing deformation and load transfer characteristics of oblique piles with different inclination angle under vertical load are studied. The results are compared with the load-bearing deformation and load transfer characteristics of straight piles under vertical load . The test results show that the settlement of inclined roof of inclined pile is larger than that of straight pile. The inclination angle of inclined pile is larger, the settlement of pile top of inclined pile exceeds that of straight pile, and the axial force of inclined pile is less than The axial force of straight piles, the greater the inclination angle of inclined piles, the faster the axial strength of piles attenuated along the depth. The bending moment of inclined piles mainly occurred in the range of 1/2 pile length in the upper part of piles, Body inclination increases and increases, the position of the maximum bending moment of the pile has nothing to do with the pile inclination. The distribution of average frictional resistance on the side of inclined pile is closely related to the inclination of pile body. The average frictional resistance on the maximum pile side of inclined pile appears at about 1/5 of the pile depth.