Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
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The Settlement Characteristics of Large Drilled Shafts Embedded into the Rocks

암반에 근입된 대구경 현장타설말뚝의 침하특성

  • Hong, Won-Pyo (Department of Civil & Environmental Engineering, Chung-Ang University) ;
  • Yea, Geu-Guwen (Technology Research Office, Sambu Construction Co., LTD.) ;
  • Nam, Jung-Man (Faculty of Marine Science, Cheju National University.) ;
  • Lee, Jae-Ho (Department of Civil Engineering, Chung-Ang University.)
  • 홍원표 (중앙대학교 건설환경공학과) ;
  • 여규권 (삼부토건(주) 기술연구실) ;
  • 남정만 (제주대학교 해양과학부) ;
  • 이재호 (중앙대학교 대학원 토목공학과)
  • Published : 2005.03.25
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Abstract

The purpose of this study is to investigate the settlement characteristics of large drilled shafts embedded into bed rocks. To perform this research, 35 pile load test results for the large drilled shafts are used, because these deep foundations generally used as substructure systems for grand bridges. In case of the yield load can not be easily determined by load(P)-settlement(S) curve from the pile load test at the maximum loads, the standard settlements which can determine a yield load is established. The residual settlement equation of pile embedded in gneiss and igneous rocks is presented in this study. Also a equation is proposed to characterize the relationship between loads and elastic settlements in pile load tests on the large drilled shaft embedded into bedrock. Then, large drilled shaft's settlement characteristics are examined on pile length, pile diameter and pile's socked depth into rock at the pile tip.

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