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Numerical Estimation for Settlement of Roadway Embankment in Permafrost Regions

机译：多年冻土区巷道路堤沉降数值估计

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摘要

Settlement is one of the main engineering problems for roadway embankments in permafrost regions. It results from a series of physical and mechanical processes (e.g., thaw consolidation, creep, and freeze-thaw cycling). To analyze the multi-source settlement, a three-dimensional thaw consolidation theory and the Lubby2 creep model were numerically implemented. The settlement of an embankment section along the Qinghai-Tibet highway was selected for analysis. Results show that the simulated settlement agrees in general with in situ monitoring data. Within the section considered, thaw consolidation and creep mainly occur in a silty clay layer. Displacement from thaw consolidation and creep were analyzed.
机译：定居点是永久冻土地区道路堤的主要工程问题之一。它由一系列物理和机械过程（例如，解冻固结，蠕变和冻融循环）产生。为了分析多源沉降，数值实施三维解冻整合理论和Lubby2蠕变模型。选择沿青藏高速公路堤防部分的沉降进行分析。结果表明，模拟结算一般与原位监测数据一致。在考虑的部分内，解冻合并和蠕变主要发生在粉质粘土层中。分析了解冻和蠕变的位移。

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