中文摘要：

给出了冻土中木桩桩土相对位移的计算方法，并根据约束样蒂法拟合出来的应变曲线来推求桩侧单位冻结应力，同时分析了桩土相对位移和桩侧单位冻结应力随时间的变化规律，而桩端阻应力由电阻应变式土压力计直接测出．由于冻土具有蠕变特性，重点分析了时问效应对荷栽传递的影响，对提出冻土中木桩的荷栽传递函数模型以及进一步揭示冻土区的桩土作用机理将起到一些重要的作用．

英文摘要：

The method of relative displacement calculation is put forward and the friction stress based on repaired strain curve is figured out. On the other hand, the rule of relative displacement and the friction stress varied with time is analysed, and the bottom-retain-stress is measured by press box. Because of the characteristic of creep, the effect of time on load-transfer is specially analysed, which will play an important role to put the fuctional modleof load-transferand and to open out the theory of pile and soil in frozen soil.