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Article

Enhancing Quality Management of PHC Piles through Improved Driving Formulas: A Comprehensive Review and Analysis

Department of Geotechnical Engineering Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, Republic of Korea
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Appl. Sci. 2024, 14(15), 6770; https://doi.org/10.3390/app14156770
Submission received: 8 July 2024 / Revised: 26 July 2024 / Accepted: 1 August 2024 / Published: 2 August 2024
(This article belongs to the Section Civil Engineering)

Abstract

In construction projects, conducting dynamic load tests on all piles proves impractical. Selective testing estimates bearing capacity, while the remaining piles rely on penetration depth for management. This approach, however, faces reliability issues due to varying conditions among piles. Technological advancements, such as non-contact hammers and sensors, have enhanced the accuracy of penetration depth measurements during final driving. Nonetheless, relying solely on penetration depth for construction and quality management remains problematic. This study, therefore, focuses on enhancing the use of driving formulas to improve pile quality management, particularly for the widely used pre-stressed high-strength concrete (PHC) piles. To improve pile quality management, existing driving formulas underwent review and refinement. Utilizing 258 dynamic load test data from various sites, the Hiley, Gates, and Danish formulas underwent validation through statistical analysis and graphical comparison. Enhancements to the Gates formula, achieved through curve fitting with actual data and the application of segment-based coefficients, demonstrated increased accuracy in bearing capacity estimation. These improvements offer a more reliable approach to pile quality management in construction projects.
Keywords: pile driving formula; Hiley formula; Gates formula; dynamic load test; PHC pile; pre-bored pile; bearing capacity pile driving formula; Hiley formula; Gates formula; dynamic load test; PHC pile; pre-bored pile; bearing capacity

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MDPI and ACS Style

Kim, G.; Seo, S.; Kim, J.; Choi, C.; Chung, M. Enhancing Quality Management of PHC Piles through Improved Driving Formulas: A Comprehensive Review and Analysis. Appl. Sci. 2024, 14, 6770. https://doi.org/10.3390/app14156770

AMA Style

Kim G, Seo S, Kim J, Choi C, Chung M. Enhancing Quality Management of PHC Piles through Improved Driving Formulas: A Comprehensive Review and Analysis. Applied Sciences. 2024; 14(15):6770. https://doi.org/10.3390/app14156770

Chicago/Turabian Style

Kim, Gunwoong, Seunghwan Seo, Juhyong Kim, Changho Choi, and Moonkyung Chung. 2024. "Enhancing Quality Management of PHC Piles through Improved Driving Formulas: A Comprehensive Review and Analysis" Applied Sciences 14, no. 15: 6770. https://doi.org/10.3390/app14156770

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