Incluyo este documento entre mis documentos sobre Estructuras.
What is Soil Liquefaction?
During heavy ground shaking by earthquakes,
liquefaction occurs when the
pressure exerted by the water present in saturated soil becomes so great that
the soil particles become ‘suspended’ in the water. A soil deposit that is liquefied behaves like
the better known phenomena: quicksand.
A few key terms:
·
Saturated soils: soils in which
the space (voids) between the soil particles is completely filled with water.
·
Pore water pressure: pressure
exerted on particles of soil by the water in the voids. Most of the time this pressure is relatively
low (hydrostatic) and results in an equilibrium condition of effective stress
state. However, there are some circumstances
in which rapidly increased stresses can cause the pore water pressure to
increase.
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