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软土变形的时效特性会使修建在软土地基上的建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,对软土地基上的工程有着重要意义。本文针对Burger粘弹塑本构模型,建立了土体固结蠕变的基本微分方程,并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,并用实地监测数据和蠕变经验公式对分析结果进行了验证。
Aging characteristics of soft soil deformation will make the construction of soft soil foundation structures can not be ignored after the settlement, so revealing the law of consolidation of soft clay creep, soft soil foundation engineering is of great significance. In this paper, based on the Burger viscoelasto-plastic model, the basic differential equations of soil consolidation creep are established. Combined with the data of consolidation creep test, the finite difference model of FLAC is used for numerical analysis. Based on the field monitoring data and creep experience The formula verifies the analysis results.