Effect of Suction on the Poisson's Ratio of Claystones

机译：吸力对黏土泊松比的影响

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An experimental investigation to analyze the effect of suction on the Poisson's ratio of claystone is presented. For this, the vapor transfer technique is used to impose suction on rock specimens. To evaluate the mechanical behavior of the claystone, two conditioned specimens are tested at each suction value through uniaxial compressive tests. Axial and radial strains are analyzed using the moving point regression technique. Axial and radial stiffness increase with suction and exhibit a non-linear behavior during the loading process. Poisson's ratio was found to decrease with suction and to evolve in a non-linear manner during loading.

机译：进行了一项实验研究，以分析吸力对粘土的泊松比的影响。为此，使用蒸汽传输技术将吸力施加到岩石样品上。为了评估粘土的力学性能，通过单轴压缩试验在每个吸力值下测试了两个条件试样。使用移动点回归技术分析轴向和径向应变。轴向刚度和径向刚度随吸力而增加，并在加载过程中表现出非线性行为。发现泊松比随着吸力而减小并且在加载期间以非线性方式演变。

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《Pan-American conference on unsaturated soils》|2017年|38-46|共9页
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J. M. Espitia; B. Caicedo; L. Vallejo;
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Effect of Suction on the Poisson's Ratio of Claystones

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