Planning n Mitigation | VOL. 14, ISSUE 83, March-April 2014 |

Liquefaction of Soil During Earthquakes

Earthquakes cause liquefaction of soil, transforming granular material from a solid to a liquefied state as a consequence of increased pore-water pressure and reduced effective stress. The generation of excess pore pressure under undrained loading conditions is a hallmark of all liquefaction phenomena. This occurrence was brought to the attention of engineers more so after the Niigata (1964) and Alaska (1964) earthquakes. Liquefaction causes building settlement or tipping, sand boils, ground cracks, landslides, dam instability, highway embankment failures, or other...

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