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通过水泥粉喷桩的现场足尺试验，测试了极体的应力-应变关系，推算出极侧摩阻力、轴力变化曲线。结果表明，荷载沿桩身的传递有一定范围，桩体的变形、应力、侧摩阻力主要集中在临界桩长范围内，而各量变化梯度在浅部较大。桩侧摩阻力的发挥与极土相对位移有关。桩体破坏也发生在浅层，破坏形式为环向拉裂和桩体横向压碎。
Through the full-scale field test of cement powder jet piles, the stress-strain relationship of the polar body was tested, and the curve of frictional resistance and axial force at the pole side was calculated. The results show that there is a certain range of transmission of the load along the pile body, and the deformation, stress and side frictional resistance of the pile are mainly concentrated in the critical pile length range, and the gradient of each volume is larger in the shallow part. The frictional resistance of piles is related to the relative displacement of polar soils. Destruction of piles also occurs in the shallow layers, and the damage is in the form of circumferential tears and lateral crushing of the piles.