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Analysis of the Fabric Changes in a Simulated Clay-Rock Mixture under Shear

机译：剪切下模拟粘土混合物中织物变化的分析

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Mudflow deposits have a distinct fabric consisting of a mixture of clay and large dispersed rock-like particles. The evaluation of the mechanical properties of these mixtures is challenging. Very little is known about the changes in fabric experienced by these mixtures when subjected to shear, and how these changes influence the failure of the mixtures. In this, study the fabric changes will be studied using simulated clay-rock mixtures. Clay samples containing wooden rods were subjected to direct shear in a Plane Stress Direct Shear Apparatus (PSDSA). The tests indicated that the clay developed regions of intensified compression at the interface between the clay and the rods. Failure took place in these regions. If more than one rod was present in the samples, the regions of failure interacted producing a continuous failure surface. Also, clay regions near the rods developed voids that influenced the permeability of the simulated clay-rock mixtures.
机译：泥浆沉积物具有不同的织物，由粘土和大分散的岩状颗粒的混合物组成。这些混合物的机械性能的评价是具有挑战性的。对于在受到剪切时，这些混合物经历的织物的变化很少，以及这些变化如何影响混合物的失效。在此，将研究使用模拟粘土混合物研究织物的变化。含有木杆的粘土样品在平面应力直接剪切装置（PSDSA）中进行直接剪切。该测试表明，粘土在粘土和杆之间的界面处产生强化压缩区域。在这些地区发生了失败。如果样品中存在多于一根杆，则失效区域的区域相互作用，产生连续的失效表面。此外，杆附近的粘土区显影了影响模拟粘土混合物的渗透性的空隙。

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