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首页> 外文期刊>International Journal of Offshore and Polar Engineers >Characteristics of Intermediate Soil with Low Plasticity from Incheon, Korea
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Characteristics of Intermediate Soil with Low Plasticity from Incheon, Korea

机译：韩国仁川的低塑性中间土的特征

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摘要

In this study, a series of laboratory and in-situ tests were carried out to evaluate the undrained strength of intermediate soil at a new port site in Incheon, South Korea. The Unconfined Compression (UC) test was examined in order to determine its applicability for the measurement of the undrained strength of this soil. The experimental test results and literature research were used to discuss the appropriate methods to evaluate the design parameters of low I_p (Plasticity Index) soils. The strength incremental ratio (s_u/P′_c) is one of the most important factors to evaluate the appropriate time of staged embankment loading in the design of soft ground improvements. In Korea, Skempton's equation has been widely used to evaluate the strength of the incremental ratio. Therefore, the field applicability of this equation to intermediate soils with low plasticity was evaluated by comparing the results against laboratory test results. Additionally, the drainage characteristics of the new port site in Incheon were estimated by using the Piezocone Penetration Test (CPTU) results to determine whether this ground was under fully undrained or partially drained conditions. Finally, the definition of intermediate soil was discussed according to the strength and consolidation characteristics as well as the physical properties.
机译：在这项研究中，进行了一系列的实验室和现场测试，以评估韩国仁川新港区中层土壤的不排水强度。为了确定其对测量土壤不排水强度的适用性，进行了无边压缩（UC）测试。实验测试结果和文献研究讨论了评估低I_p（塑性指数）土壤设计参数的合适方法。强度增量比（s_u / P'_c）是评估软土地基改良设计中分阶段路堤荷载的适当时间的最重要因素之一。在韩国，Skempton方程已被广泛用于评估增量比的强度。因此，通过将结果与实验室测试结果进行比较，评估了该方程对低塑性中间土壤的现场适用性。此外，仁川新港口站点的排水特性通过使用压电渗透测试（CPTU）结果进行估算，以确定该地面是处于完全不排水还是部分排水的状态。最后，根据强度和固结特性以及物理性质讨论了中层土的定义。

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