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Measuring of the horizontal stress in overconsolidated soils

机译:超固结土中水平应力的测量

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Assessment of horizontal stress in overconsolidated soils causes considerable problems. All currently used methods involve imperfections. The conventional in-situ techniques using empirical formulae based on laboratory measurements are inappropriate due to ageing and other effects invalidating all laboratory measurements of K_0. The present study consists of two pans. First it focuses on the definition of coefficient of earth pressure at rest. Secondly it analyses in-situ measunng by Marchetti's flat dilatometer (FDM) in Miocene overconsolidated clay strata called "Tegel" at the town of Brno, Czech Rep. The measured data are compared to a numerical analysis of the FDM using hypoplastic constituve model.
机译:评估超固结土壤中的水平应力会引起很多问题。当前所有使用的方法均涉及缺陷。由于老化和其他影响使所有K_0的实验室测量值无效,使用基于实验室测量值的经验公式的常规原位技术是不合适的。本研究由两个锅组成。首先,它着重于静止时土压力系数的定义。其次,在捷克共和国布尔诺市的中新统超固结黏土地层中,由马尔凯蒂的平面膨胀计(FDM)进行现场分析,将其称为“泰格尔(Tegel)”。将实测数据与使用增塑本构模型对FDM的数值分析进行了比较。

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