Liquefaction 14
Liquefaction 14 : The phenomenon by which ground loses its shear resistance as a consequence of the application of dynamic actions such as seismic effects in non-draining conditions. The cause lies in the increase of interstitial pressures that follows the dynamic shaking: this increase, added to the initial value of the interstitial pressure, ends up by equalling the tensions normally applied, therefore cancelling effective tensions and as a consequence also resistance. Loose sandy surface soil deposits below the ground water table level are particularly susceptible to dynamic liquefaction
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