GIULIA BOSSI E ROLANDO P. ORENSE, 2019, Exchange of data between experts in soil constitutive models and experts engaged in the experimental investigation of liquefaction of sands, 2019,
URL: http://www.cnr.it/prodotto/i/407649

Liquefaction is the physical state in which the interstitial pressures in the soil pores exceeds the effective stresses (contact forces between the grains) thus reducing the shear resistance of the soil and soil stiffness. Liquefaction processes have been categorized by Robertson et al. (1998) in a) flow liquefaction, also known as static liquefaction, and b) cyclic liquefaction. The latter represents the most common use of the term liquefaction and it is related to a process that induces cycling loading, in particularly ground vibrations. Therefore, at small scale liquefaction can occur during laboratory and in situ tests, at medium scale due to ground vibrations induced by underground explosions or large landslides (Iverson and George 2016) and at larger scale it can happened during earthquakes. Ground vibrations are thus the triggering factor for this type of liquefaction. In recent years soil liquefaction has occurred in several locations around the world. Within the counties of the HERCULES consortium it has occurred in China, New Zealand and Italy.

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