Geomechanics and Engineering

  • 제35권2호
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  • Pages.165-179
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  • 2023
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Uplift capacity of single vertical belled pile embedded at shallow depth

  • Jung-goo Kang (Department of Civil Engineering, Gwangju University) ;
  • Young-sang Kim (Department of Civil Engineering, Chonnam National University) ;
  • Gyeongo Kang (Department of Civil Engineering, Gwangju University)
  • 투고 : 2022.11.14
  • 심사 : 2023.08.30
  • 발행 : 2023.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

This study investigates the uplift capacity of a single vertical belled pile buried at shallow depth in dry sand. The laboratory model experiments are conducted with different pile-tip angles and relative densities. In addition, image and FEM analyses are performed to observe the failure surface of the belled pile for different pile-tip angles and relative densities. Accordingly, the uplift capacity and failure angle in the failure surface of the belled pile were found to depend on the belled pile-tip angle and relative density. A predictive model for the uplift capacity of the belled pile was proposed considering the relative density and belled pile-tip angle based on a previous limit equilibrium equation. To validate the applicability of the proposed model, the values calculated using the proposed and previous models were compared to those obtained through a laboratory model experiment. The proposed model had the best agreement with the laboratory model experiment.

키워드

과제정보

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2021R1C1C2004070) and the research funds from Gwangju University in 2023.

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