Construction of earth structures involves the use of compacted soils. In roads construction quality controls like the bearing capacity of the subgrade, base and subbase layers, CBR values and compaction characteristics are primarily important. In Sweden, it has become interesting to correlate new testing parameters collected by simple tests to the conventional compaction parameters collected from modified Proctor tests. This action will help in assessing the bearing capacity of the selected material simply and quickly using the recent developed techniques instead of the conventional techniques which have been considered as time consuming methods. The aim of this study is to demonstrate that the laboratory dynamic California bearing ratio (CBR_LD) test can be used as a method of compaction assessment of selected subgrade soil. Moreover, it has been demonstrated in this study that the CBR_LD can strongly be correlated to the compaction densities and molding water contents using polynomial correlation and a best-fit multiple regression model for a wide range of molding water contents. In addition, the repeatability of the dynamic laboratory CBR test was examined as discussed in the current article.

中文翻译：

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实验室动态CBR与砂土的压实特性之间有很强的相关性

土结构的建造涉及使用压实的土壤。在道路施工质量控制中，例如路基，基层和基层的承载力，CBR值和压实特性至关重要。在瑞典，将通过简单测试收集的新测试参数与从修改后的Proctor测试收集的常规压实参数关联起来变得很有趣。该动作将有助于使用最新开发的技术而不是被认为是耗时的方法的常规技术来简单，快速地评估所选材料的承载能力。这项研究的目的是证明实验室动态加利福尼亚负荷比（CBR _LD）试验可用作选定路基土壤压实度评估的方法。此外，在这项研究中已证明，使用多项式相关性和最广泛的成型水含量的最佳拟合多元回归模型，可以将CBR _LD与压实密度和成型水含量紧密相关。此外，如当前文章中所述，对动态实验室CBR测试的可重复性进行了检查。