中文摘要：

针对我国目前高速公路软土地基沉降处理的问题，运用大型非线性有限元分析软件ADINA对堆载预压下的软土地基沉降变形进行数值模拟分析，研究软土地基沉降变形特性及规律。通过有限元模拟，得出的最终沉降结果与实测值相比误差百分比为13，03％，结果基本一致。证明运用ADINA软件对其进行数值模拟是可靠的，可以用ADINA软件模拟的手段代替实验是经济可行的。并且通过对分级加载预压下软基水平和竖向的位移变形进行分析，得出了预压载荷下软基变形的一些规律。

英文摘要：

Using the big-scale non-linear analysis software, which is called ADINA numerical simulation and analysis is made in the aim of finding the characteristic and the disciplinarian of the sedimentation on the sedimentation of soft-soil foundation, which is under preloading of deposit because of the problem about the disposal of speedway soft-soil foundation sedimentation. The conclusion through numerical simulation is that the error between numerical simulation and survey is 13.03% and the result is basically accorded. The outcome proves that the using ADINA software to do numerical simulation on it is credible and using ADINA software to take the place of experiment is economical and feasible .Finally some soft-soil foundation distortion disciplinarian is elicited through the analysis of the soft-soil foundation landscape orientation and vertical distortion which is brought to bear step by step.