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

Korean Geotechnical Society (한국지반공학회)
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Expansion Ratio of Pulse Power Underreamed Anchor

펄스방전 그라운드 앵커의 확공 특성에 관한 연구

  • Kim, Nak-Kyung (Dept. of Civil, Architecture and Environmental System Engineering, SungKyunKwan Univ.) ;
  • Ju, Yonh-Sun (Dept. of Civil, Architecture and Environmental System Engineering, SungKyunKwan Univ.) ;
  • Kim, Sung-Kyu (Dept. of Civil, Architecture and Environmental System Engineering, SungKyunKwan Univ.) ;
  • Seo, Hyo-Kyun (Dept. of Civil, Architecture and Environmental System Engineering, SungKyunKwan Univ.) ;
  • Kim, Sun-Ju (Daewoo Reserch Institute of Technology)
  • 김낙경 (성균관대학교 건설환경시스템공학과) ;
  • 주용선 (성균관대학교 건설환경시스템공학과) ;
  • 김성규 (성균관대학교 건설환경시스템공학과) ;
  • 서효균 (성균관대학교 건설환경시스템공학과) ;
  • 김선주 (대우건설기술연구소)
  • Published : 2009.03.27
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Abstract

Ground anchor should not be used in soft clay, because anchor resistance can not be guaranteed. However, there is a way to increase the capacity of anchors. The pulse powered anchor is an underreamed anchor by using high voltage electrokinetic pulse energy. In this study, a series of field test were carried out in order to find expansion rate related in number of pulse charge. and Anchor pull-out tests were performed at the Geotechnical Experimentation Site at Sungkyunkwan University in Suwon, Korea. Data were analyzed in order to define a relation between expansion rate and ultimate pullout load.

Keywords