Geomechanics and Engineering

  • 제21권6호
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  • Pages.503-511
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  • 2020
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of side resistance for drilled shafts in rock sections

  • Hsiao, Cheng-Chieh (Department of Civil Engineering, Chung Yuan Christian University) ;
  • Topacio, Anjerick J. (Department of Civil Engineering, Chung Yuan Christian University) ;
  • Chen, Yit-Jin (Department of Civil Engineering, Chung Yuan Christian University)
  • 투고 : 2019.11.26
  • 심사 : 2020.04.24
  • 발행 : 2020.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

This study evaluated the side resistance of drilled shafts socketed into rock sections. Commonly used analysis methods for side resistance of piles in rocks are examined by utilizing a large number of load test data. The analysis of the unit side resistance of pile foundations embedded into rock sections is based on an empirical coefficient (α) and the uniaxial compressive strength (qu) or its root (${\sqrt{q_u}}$). The Davisson criterion was used to interpret the resistance capacity from the load test results to acquire the computed relationships. The α-${\sqrt{q_u}}$ relationship is proven to be reliable in the prediction of friction resistance. This study further analyzed the relationship by including the effect of rock quality designation (RQD) on the results. Analysis results showed that the analysis model of α-${\sqrt{q_u}}$-RQD provided better prediction and reliability considering the RQD classification. Based on these analyses, the side resistance of drilled shafts socked into rocks is provided with statistical data to support the analysis.

키워드

과제정보

This study was supported by the Ministry of Science and Technology, Taiwan, under contract number: MOST 107-2221-E-033-014.

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피인용 문헌

  1. Assessment of ultimate load of drilled shaft socketed in rocks based on pile load tests vol.26, pp.3, 2020, https://doi.org/10.12989/gae.2021.26.3.215