通过分级加荷的方式对天津滨海新区经过真空预压处理后的软土进行一维压缩蠕变试验.根据试验所得到的成果,在Terzaghi一维固结理论的基础上,用修正的Singh-Mitchell经验蠕变模型建立了一个新的一维固结微分方程.该方程以一维压缩蠕变试验中所获得的土体力学指标作为计算参数,考虑了软土在主固结阶段结束后所产生的蠕变变形.利用该方程对不同深度和不同应力水平下的试样进行固结和蠕变计算,计算结果与试验结果很接近,表明该方程能够充分反映软土的应力、应变和时间的关系,适用于天津滨海新区的吹填软土地基. One-dimensional compressive creep test was carried out on Tianjin Binhai New Area after vacuum preloading by grading and loading.According to the results obtained in the experiment, based on the Terzaghi one-dimensional consolidation theory, a modified Singh- Mitchell empirical creep model to establish a new one-dimensional consolidation differential equation.This equation to one-dimensional compressive creep test obtained soil mechanics indicators as a parameter to consider the soft soil after the end of the main consolidation phase The results of the calculation and the experimental results are very close to each other, which shows that the equation can fully reflect the stress, strain and time of soft soil The relationship applies to the Tianjin Binhai New Area of ​​soft-filled soft ground.