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Strength and Stiffness Parameters of an Unsaturated Tropical Soil

机译：不饱和热带土壤的强度和刚度参数

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摘要

The interpretation of in-situ tests for site characterization of unsaturated tropical soil sites should consider both the spatial and the seasonal variability caused by the soil suction on the strength and stiffness parameters. This paper presents and discusses the suction-controlled and conventional triaxial with bender elements and in-situ tests data together with water content profiles, as well as soil water retention curves (SWRC) from an unsaturated tropical sandy soil site, to examine the influence of the soil suction on the strength and stiffness soil parameters. The results showed the influence of soil suction on the data interpretation of CPT and DMT to define strength and stiffness parameters for the top layer. This paper point out the importance of considering the seasonal variability caused by suction on the characterization of the study site.
机译：对于非饱和热带土壤场地的现场特性的原位测试的解释，应考虑土壤吸力在强度和刚度参数上引起的空间和季节变化。本文介绍并讨论了带有弯管元件的吸力控制和常规三轴，并进行了现场测试数据以及含水量分布图，以及来自非饱和热带砂质土壤场地的土壤保水曲线（SWRC），以检验对土壤的影响。吸力对土的强度和刚度参数的影响。结果表明，土壤吸力对CPT和DMT数据解释的影响，以定义顶层的强度和刚度参数。本文指出了在研究地点的特征上考虑由吸力引起的季节变化的重要性。

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