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首页> 外文会议>Workshop on Constitutive and Centrifuge Modelling: Two Extremes, Jul 8-13, 2001, Monte Verita, Switzerland >Deformation behaviour of a soft Swiss lacustrine clay
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Deformation behaviour of a soft Swiss lacustrine clay

机译：柔软的瑞士湖相粘土的变形行为

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First triaxial multi-stage tests on a Swiss lacustrine clay, the Seebodenlehm, are presented. The aim of the research is to model the deformation behaviour of the normally consolidated Seebodenlehm for plastic straining as well as for behaviour inside the current yield locus. Therefore two models are being studied: S-Clayl for yielding and 3-SKH for elasto-plastic deformation inside the yield locus. Stress response and volumetric behaviour of specimens from 6 and 23 m depth, as well as their stiffness during shearing, are presented. The agreement of the test results with predictions based on the S-Clayl model with rotating yield loci is discussed. The main question remaining concerns stress paths inside the yield locus: whether and how they interfere with the anisotropy of the yield surface.
机译：提出了在瑞士湖相粘土Seebodenlehm上进行的首个三轴多阶段测试。该研究的目的是对正常固结的Seebodenlehm的塑性变形以及当前屈服点内部的行为进行建模。因此，正在研究两个模型：用于屈服的S-Clayl和用于屈服轨迹内部的弹塑性变形的3-SKH。给出了6和23 m深度的试样的应力响应和体积行为，以及在剪切过程中的刚度。讨论了测试结果与基于旋转产量位点的S-Clayl模型的预测的一致性。剩下的主要问题是屈服点内部的应力路径：它们是否以及如何干扰屈服面的各向异性。

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