흙막이 벽체와 그라우트 특성에 따른 구조.수리상호 작용

Mechanical and hydraulic interaction between braced wall and groundwater

  • 남택수 (포스코건설 토목환경사업본부) ;
  • 윤재웅 (건국대학교 토목공학과) ;
  • 권오엽 (건국대학교 토목공학과) ;
  • 신종호 (건국대학교 토목공학과)
  • 발행 : 2010.03.25

초록

For the deep excavation in urban area, the braced-cut method is mainly adopted. In this case, inadequate consideration of ground water level may result in wrong prediction of structural behavior. In this study, the effects of hydraulic interaction between wall and grout were investigated using the finite element method. The maximum stress in case of confined ground water condition is obtained at the final excavation stage in the range of 70~80% of excavation depth. The stress of impermeable case is about 50% larger than that of permeable case. When the relative permeabililty of wall-grout become smaller, the stress is getting bigger. And the stress tends to converge in case of 1/100 or less of the relative permeability.

키워드