Geomechanics and Engineering

  • 제18권4호
  • /
  • Pages.363-371
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  • 2019
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Effects of rock-support and inclined-layer conditions on load carrying behavior of piled rafts

  • Roh, Yanghoon (School of Civil and Environmental Engineering, Yonsei University) ;
  • Kim, Garam (School of Civil and Environmental Engineering, Yonsei University) ;
  • Kim, Incheol (School of Civil and Environmental Engineering, Yonsei University) ;
  • Lee, Junhwan (School of Civil and Environmental Engineering, Yonsei University)
  • 투고 : 2018.07.05
  • 심사 : 2019.06.15
  • 발행 : 2019.07.20
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, the load carrying behavior of piled rafts installed in inclined bearing rock layer was investigated for rock-mounted and -socketed conditions. It was found that settlements induced for an inclined bearing rock layer are larger than for a horizontal layer condition. The load capacity of piled rafts for the rock-mounted condition decreased as rock-layer inclination angle (${\theta}$) increased, while vice versa for the rock-socketed condition. The load capacities of raft and piles both decreased with increasing ${\theta}$ for the rock-mounted condition. When bearing rock layer was inclined, loads carried by uphill-side piles were greater than those by downhill-side piles. The values of differential settlements of rock-mounted and -socketed conditions were not significantly different whereas slightly higher for the rock-socketed condition. The values of load sharing ratio (${\alpha}_p$) and its variation with settlement were not markedly changed by the inclination of bedrock. It was shown that ${\alpha}_p$ for piled rafts installed in rock layer was not affected by ${\theta}$ whereas actual loads carried by raft and piles may vary depending on the pile installation and rock-layer inclination conditions.

키워드

과제정보

연구 과제 주관 기관 : Korea Institute of Energy Technology Evaluation and Planning (KETEP), National Research Foundation of Korea (NRF)

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피인용 문헌

  1. Effect of slope with overburden layer on the bearing behavior of large-diameter rock-socketed piles vol.24, pp.4, 2021, https://doi.org/10.12989/gae.2021.24.4.389