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Numerical analysis of deep excavations and prediction of their influence on neighboring buildings

机译:深度挖掘数值分析及其对邻近建筑物影响的预测

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Designing deep excavations in densely built areas implies complex aspects when estimating the effects induced on the existing built environment. Numerical methods used nowadays can account for both strength and deformability parameters of soils, helping the engineer in assessing not only difficult geometries and the sequence of construction stages, but also complex soil behavior through advanced constitutive models. Thus, both the retaining wall deformations and excavation-induced ground movements can accurately be predicted. The paper focuses on presenting the application of the above stated issues on a practical case study by using the finite element method. In principle, this is related to the assimilation of appropriate calculation technique and constitutive soil models together with their associated geotechnical parameters. The case study is represented by a deep excavation constructed in Vienna, for which the results are validated by comparison to the measurements of real soil behavior.
机译:在浓密构建的区域中设计深度挖掘意味着在估计现有内部环境中引起的效果时的复杂方面。现在使用的数值方法可以考虑土壤的强度和可变形性参数,帮助工程师评估难以困难的几何形状和施工阶段的顺序,也可以通过先进的本构模型复杂的土壤行为。因此,可以准确地预测保持壁变形和挖掘诱导的接地运动。本文侧重于通过使用有限元方法在实际案例研究中提出上述问题的应用。原则上,这与适当的计算技术和本构体的同化与其相关的岩土学参数的同化化有关。案例研究由维也纳构建的深度开挖代表,通过与真土​​行为的测量相比,验证结果。

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