분  류

한국지반환경공학회 논문집

서  명

Numerical Analysis on Effect of Permeability and Reinforcement Length (Drainage Path) in Reinforced Soil

저  자

이홍성·황영철

페이지

pp. 59~65

초  록

 Excess pore pressures in low permeability soils may not dissipate quickly enough and decrease the effective stresses inside the soil, which in turn may cause a reduction of the shear strength at the interface between the soil and the reinforcement in MSE walls. For this condition the dissipation rate of pore pressures is most important and it varies depending on wall size, permeability of the backfill, and reinforcement length. In this paper, a series of numerical analysis has been performed to investigate the effect of those factors. The results show that for soils with a permeability lower than 10^-3 cm/sec, the consolidation time gradually increases. The increase in consolidation time indicates the decrease in effective stress thus it will result in decrease in pullout capacity of the reinforcement as verified by the numerical analyses. It is also observed that larger consolidation time is required for longer reinforcement length (longer drainage path).

주제어

Excess pore pressure, MSE wall, Permeability, Reinforcement length, Drainage path

목               차

pp. 5

하수성분중 비규제대상 유기오염물질의 정성적 특성에 관한 연구

 / 신진환·정영도

pp.11

공동주택에서 지열 냉난방 시스템 적용시 경제성 분석

 / 박용부·박종배·임해식·백성권

pp.19

복합지반의 침하에 대한 영향인자의 평가

 / 김방식·배우석

pp.27

저소성 연약지반에서의 스미어 존 특성 평가

 / 강윤·백성철·김홍택

pp.35

수치해석에 의한 스미어 존 평가

 / 강윤·남열우·이섬범·김홍택

pp.41

훅타입 말뚝두부보강 기초의 안정성 평가

 / 이흥길·오세욱

pp.51

국내 절토 비탈면 설계기준의 해석적 평가

 / 황영철?이홍성

pp.59

Numerical Analysis on Effect of Permeability and Reinforcement Length (Drainage Path) in Reinforced Soil / 이홍성·황영철

pp.67

Load Sharing Ratio of Raft in Piled Raft on Granular Soils by Model Test / 권오균