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Static Liquefaction and "Reverse" Behavior of Silty Sand
Soil liquefaction is preceded by instability in granular soils. Case histories support the observation that it is silty sands that liquefy under static and a majority of earthquakeinduced conditions. Recent experiments show that clean sands do not behave similar to silty sands. The effect of the fines and their location between the larger particles or in the voids between larger particles play an important role in the stress-strain behavior of these fine-grained granular soils. Tests on loose silty sand indicate `reverse' behavior with respect to confining pressure and this violates the basic assumption that loose, silty sands behave similar to loose, clean sands. This phenomenon occurs at low confining pressures while the more conventional behavior is found at higher confining pressures at which the fines have been removed from the contacts between the coarser grains.
Static Liquefaction and "Reverse" Behavior of Silty Sand
Soil liquefaction is preceded by instability in granular soils. Case histories support the observation that it is silty sands that liquefy under static and a majority of earthquakeinduced conditions. Recent experiments show that clean sands do not behave similar to silty sands. The effect of the fines and their location between the larger particles or in the voids between larger particles play an important role in the stress-strain behavior of these fine-grained granular soils. Tests on loose silty sand indicate `reverse' behavior with respect to confining pressure and this violates the basic assumption that loose, silty sands behave similar to loose, clean sands. This phenomenon occurs at low confining pressures while the more conventional behavior is found at higher confining pressures at which the fines have been removed from the contacts between the coarser grains.
Static Liquefaction and "Reverse" Behavior of Silty Sand
Yamamuro, Jerry A. (author) / Lade, Poul V. (author)
GeoCongress 2012 ; 2012 ; Oakland, California, United States
GeoCongress 2012 ; 829-838
2012-03-29
Conference paper
Electronic Resource
English
Static Liquefaction and ``Reverse'' Behavior of Silty Sand
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