Optimization and Experimental Study of Penetration Depth of Pocket Penetrometer
The pocket penetrometer has become an ideal tool for the rapid testing of soil parameters in the field due to its portability, ease of use, and cost effectiveness, but there is still room for improvement in its accuracy. In this study, a penetration test on red clay was investigated by increasing th...
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MDPI AG
2025-01-01
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| author | Yanzhao Liang Gangchen Sun Yunjun Zhao |
| author_facet | Yanzhao Liang Gangchen Sun Yunjun Zhao |
| author_sort | Yanzhao Liang |
| collection | DOAJ |
| description | The pocket penetrometer has become an ideal tool for the rapid testing of soil parameters in the field due to its portability, ease of use, and cost effectiveness, but there is still room for improvement in its accuracy. In this study, a penetration test on red clay was investigated by increasing the penetration depth and combining the self-designed penetrometer, sample preparation method, and data analysis method. The improved sample preparation technique performs well in improving sample uniformity and preparation efficiency. The quantitative processing of the penetration curves improves the objectivity and accuracy of the test results. The penetration test results of various reshaped soils showed that the relationships between liquidity index, shear strength, and penetration resistance were less affected by the liquid–plastic interface. In addition, the penetration test results of remolded soils and in situ soils showed that the empirical formulas are still informative in evaluating the shear strength of soils despite the differences in the test soils. |
| format | Article |
| id | doaj-art-0641070d6776485daa8b55813b051d9d |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-0641070d6776485daa8b55813b051d9d2025-01-24T13:20:33ZengMDPI AGApplied Sciences2076-34172025-01-0115271110.3390/app15020711Optimization and Experimental Study of Penetration Depth of Pocket PenetrometerYanzhao Liang0Gangchen Sun1Yunjun Zhao2School of Civil Engineering, Guilin University of Technology, Guilin 541004, ChinaSchool of Civil Engineering, Guilin University of Technology, Guilin 541004, ChinaDesign Research Institute, Guilin University of Technology Survey, Guilin 541004, ChinaThe pocket penetrometer has become an ideal tool for the rapid testing of soil parameters in the field due to its portability, ease of use, and cost effectiveness, but there is still room for improvement in its accuracy. In this study, a penetration test on red clay was investigated by increasing the penetration depth and combining the self-designed penetrometer, sample preparation method, and data analysis method. The improved sample preparation technique performs well in improving sample uniformity and preparation efficiency. The quantitative processing of the penetration curves improves the objectivity and accuracy of the test results. The penetration test results of various reshaped soils showed that the relationships between liquidity index, shear strength, and penetration resistance were less affected by the liquid–plastic interface. In addition, the penetration test results of remolded soils and in situ soils showed that the empirical formulas are still informative in evaluating the shear strength of soils despite the differences in the test soils.https://www.mdpi.com/2076-3417/15/2/711pocket penetrometerred claypenetration testshear strengthliquidity index |
| spellingShingle | Yanzhao Liang Gangchen Sun Yunjun Zhao Optimization and Experimental Study of Penetration Depth of Pocket Penetrometer Applied Sciences pocket penetrometer red clay penetration test shear strength liquidity index |
| title | Optimization and Experimental Study of Penetration Depth of Pocket Penetrometer |
| title_full | Optimization and Experimental Study of Penetration Depth of Pocket Penetrometer |
| title_fullStr | Optimization and Experimental Study of Penetration Depth of Pocket Penetrometer |
| title_full_unstemmed | Optimization and Experimental Study of Penetration Depth of Pocket Penetrometer |
| title_short | Optimization and Experimental Study of Penetration Depth of Pocket Penetrometer |
| title_sort | optimization and experimental study of penetration depth of pocket penetrometer |
| topic | pocket penetrometer red clay penetration test shear strength liquidity index |
| url | https://www.mdpi.com/2076-3417/15/2/711 |
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