Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2010.03a
- /
- Pages.435-441
- /
- 2010
Effect of verification core hole on tip capacity
확인코어공이 현장타설말뚝의 선단지지력에 미치는 영향
- Youn, Hee-Jung (Coastal Engineering & Ocean Energy Research Development, KORDI) ;
- Tonon, Fulvio (Department of Civil Engineering, The University of Texas at Austin)
- 윤희정 (한국해양연구원) ;
- Published : 2010.03.25
Abstract
In this study, numerical simulations were carried out to investigate the effect of verification core hole on the shaft tip capacity. The verification core extreted at shaft tip may deteriorate the shaft tip capacity when the clay shales (Taylor Marl) surrounding the shaft degrades and the empty core hole remains unfilled. Series of finite element analyses were conducted using Mohr-Coulomb model with total stress material parameters that were obtained from laboratory testing. The numerical analyses indicate that the shaft tip capacity does not decrease for most cases, and the maximum reduction does not exceed 5%.
Keywords