정적하중 상태에서 포화된 실트질 모래의 액상화 거동
Liquefaction Behaviour of Saturated Silty Sand Under Monotonic Loading Conditions
0
조회
0
다운로드
0
인용
0
참고문헌
초록
Abstract
This study was carried out to investigate the liquefaction behaviour of saturated silty sand under monotonic loading conditions. The undrained soil tests were conducted using a modified triaxial cell and specimens were prepared using the moisture tamping method. Undrained triaxial compression tests were performed at different confining pressures, void ratios and overconsolidation ratios and the samples were sheared to axial strains of about 20% to obtain monotonic loading conditions. It is shown that increasing confining pressures, void ratios and overconsoildation ratios increases the deviator stress, but it has no effect on increasing the dilatant tendencies. It is shown that complete static liquefaction was observed regardless of increases in the confining pressure, void ratio and overconsolidation ratio. Therefore, the confining pressure, void ratio and overconsoildation ratio does not provide significant effects on the liquefaction resistance of the silty sand. The presence of fines in the soil was shown to greatly increase the potential for static liquefaction and creates a particle structure with high compressibility for all cases.
참고문헌 (16)
- "Liquefaction testing of stratified silty sands", 126(3), pp.208~217 (2000)
- "Liquefaction flow of submarine slopes under partially undrained conditions: an effective stress approach,", 41(1), pp.154~165 (2004)
- "The behavior of loose gassy sand,", 36(3), pp.482~492 (1999)
- "Liquefaction and flow failure during earthquakes", pp.351~43 415 (1993)
- "Initiation of soil liquefaction under static loading conditions", 114(4), pp.412~430 (1988)
- "Initiation of static instability in the submarine Nerlerk berm", p., pp.895~904 (1993)
- "Creep effects on static and cyclic instability of granular soils", 120(2), pp.404~419 (1994)
- "Effects of nonplastic fines on static liquefaction of sands", 34(6), pp.918~928 (1997)
- "Influence of fines on the collapse of loose sands", pp.728~739 (1994)
- "Effect of nonplastic fines on the liquefaction resistance of sands", 127(5), pp.408~415 (2001)
- "Liquefaction and postliquefaction beha- vior of sand", 121(2), pp.163~173 (1995)
- "Instability and liquefaction of granular soils under undrained and partially drained states", 35, pp.1053~1062 (1998)
- "Static liquefaction of very loose sands", 34(6), pp.905~917 (1997)
- "Steady-state concepts and static liquefaction of silty sands", 124(9), pp.868~877 (1998)
- "Experiments and modeling of silty sands susceptible to static liquefaction.", 4, pp.545~564 (1999)
- "Monotonic and cyclic liquefaction of very loose sadns with high silt content", 127(4), pp.314~324 (2001)