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.