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The Propagation Mechanics of Liquefied Sand Lenses Due to Cyclic Loading
Saturated sand lenses are usually encountered inside saturated clay deposits. During an earthquake the sand lenses could liquefy. After liquefaction, sand volcanoes appear on the surface of the clay deposits. To date, there is not a clear understanding of the mechanisms involved with the movement of the liquefied sand lenses. The liquefaction of the sand lenses is the result of shear stresses induced in the sand by seismic shear (S) waves. Another seismic wave that has been overlooked in the movement of liquefied sand lenses is the compressive (P) wave. This study presents a laboratory experiment that uses a shaking table that vibrates horizontally a saturated clay mass containing a simulated liquefied sand lense. The experiments indicated that the liquefied sand lense moved as a result of the compressive stress induced in the clay by the P waves and the stress concentration at the top of the sand lense.
The Propagation Mechanics of Liquefied Sand Lenses Due to Cyclic Loading
Saturated sand lenses are usually encountered inside saturated clay deposits. During an earthquake the sand lenses could liquefy. After liquefaction, sand volcanoes appear on the surface of the clay deposits. To date, there is not a clear understanding of the mechanisms involved with the movement of the liquefied sand lenses. The liquefaction of the sand lenses is the result of shear stresses induced in the sand by seismic shear (S) waves. Another seismic wave that has been overlooked in the movement of liquefied sand lenses is the compressive (P) wave. This study presents a laboratory experiment that uses a shaking table that vibrates horizontally a saturated clay mass containing a simulated liquefied sand lense. The experiments indicated that the liquefied sand lense moved as a result of the compressive stress induced in the clay by the P waves and the stress concentration at the top of the sand lense.
The Propagation Mechanics of Liquefied Sand Lenses Due to Cyclic Loading
Vallejo, Luis E. (author) / Scovazzo, Vincent (author)
Eighth International Conference on Case Histories in Geotechnical Engineering ; 2019 ; Philadelphia, Pennsylvania
Geo-Congress 2019 ; 332-340
2019-03-21
Conference paper
Electronic Resource
English
The Propagation Mechanics of Liquefied Sand Lenses Due to Cyclic Loading
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