Abstract The intelligent compaction (IC) technology has been demonstrated as a powerful tool for soil compaction. However, the correlation between IC measurement values (ICMV) and in-situ tests has not been always consistent due to the influence of moisture content. The same density can be obtained at two different moisture contents on either side of the optimum moisture content, whereas without the same modulus. In this study, the influence of moisture contents on ICMV and in-situ point measurement values were examined by both in-situ and laboratory tests. By using the compaction curves from the gyratory compactor and field compaction, the impact of different moisture contents on soil modulus was identified, and the sensitivity of ICMV on the soil density and deflection due to varying moisture contents was explained. Another laboratory test, the vibratory compaction, could offer the target ICMV value from a modulus versus water content curve. Based on the test results in this study, an improved IC soil compaction system including laboratory test validations was suggested to identify the soil compactability and the target value at varying moisture contents.

中文翻译：

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含水率对智能压实土壤的影响

摘要 智能压实（IC）技术已被证明是一种强大的土壤压实工具。然而，由于水分含量的影响，IC 测量值 (ICMV) 和原位测试之间的相关性并不总是一致的。在最佳含水量的任一侧的两种不同含水量下可以获得相同的密度，而没有相同的模量。在这项研究中，水分含量对 ICMV 和原位点测量值的影响通过原位和实验室测试进行了检查。通过使用旋转压实机和现场压实的压实曲线，确定了不同含水量对土壤模量的影响，并解释了 ICMV 对土壤密度和因含水量变化引起的挠度的敏感性。另一个实验室测试，振动压实可以根据模量与含水量曲线提供目标 ICMV 值。根据本研究中的测试结果，建议使用改进的 IC 土壤压实系统，包括实验室测试验证，以确定不同水分含量下的土壤压实性和目标值。