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<p>Dynamic probes, such as the dynamic probe light (DPL) with a 10&#xa0;kg hammer weight, are easy to use and enable rapid, in-situ compaction control of embankments. However, the use of these light tools in dense soil is limited because the number of blows can be greatly increased and may even exceed the maximum allowable value. For dense soil types, in order to be able to rely on the test results, heavier tools with hammers of 30–50&#xa0;kg should be used. This will reduce the speed and ease of testing because of the heavy weight of the tool. In the current study, numerous tests were conducted on soil compacted in a physical model to develop a tool for dense soil. The priority was maintaining speed and ease of testing by modifying the specifications of the DPL tool. The results showed that the efficiency and penetration power of the newly developed tools were higher than those of the DPL tool, even though the hammer weight and energy input remained constant. Statistical analysis of the dynamic probing test results confirmed data repeatability and sufficient confidence for establishing new empirical correlations.</p>

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Performance improvement of modified light dynamic probing in dense sandy soils with various silt contents

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年4月15日

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  • Hamidreza Salimi,
  • Mahdi Khodaparast,
  • Amir Khoshgoftar

摘要

Dynamic probes, such as the dynamic probe light (DPL) with a 10 kg hammer weight, are easy to use and enable rapid, in-situ compaction control of embankments. However, the use of these light tools in dense soil is limited because the number of blows can be greatly increased and may even exceed the maximum allowable value. For dense soil types, in order to be able to rely on the test results, heavier tools with hammers of 30–50 kg should be used. This will reduce the speed and ease of testing because of the heavy weight of the tool. In the current study, numerous tests were conducted on soil compacted in a physical model to develop a tool for dense soil. The priority was maintaining speed and ease of testing by modifying the specifications of the DPL tool. The results showed that the efficiency and penetration power of the newly developed tools were higher than those of the DPL tool, even though the hammer weight and energy input remained constant. Statistical analysis of the dynamic probing test results confirmed data repeatability and sufficient confidence for establishing new empirical correlations.