By choosing proper load transfer model, the transfer differential equation of load and settlement has been solved with the interation between pile and soil taken into consideration.

• 选取了合理的荷载传递模型，并解出了考虑桩土共同作用的桩身荷载和沉降关系的传递微分方程，得到桩顶荷载与桩顶沉降的关系式。