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软土变形的时效特性会使修建在软土地基上的构筑物产生不可忽视的工后沉降,因此揭示软土固结蠕变的规律,这对软土地基上的工程有着重要意义。本文根据伯格斯粘弹塑本构模型的理论公式以及土体的固结蠕变耦合模型,建立了土体固结蠕变的基本微分方程,结合固结蠕变试验资料,运用FLAC的有限差分模式进行数值分析,并用实际工程监测数据对分析结果进行了验证。
The aging characteristics of soft soil deformation will make the structures built on soft soil produce irreversible settlement, which reveals the law of consolidation and creep of soft soil, which is of great significance to engineering on soft soil foundation. According to the theoretical formula of Burgs viscoelastic plastic constitutive model and the consolidation creep coupling model of soil, the basic differential equation of soil consolidation creep is established. Combined with the data of consolidation creep test, Differential mode for numerical analysis, and the actual project monitoring data to verify the results of the analysis.