INTECIN   20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Numerical simulation of observed liquefaction phenomena from the 2011 Christchurch (New Zealand) event
Autor/es:
DIEGO MANZANAL; PABLO MIRA; SILVIA BERTELLI; TIZIANA ROSSETTO; ROB RUITER; SUSANA LOPEZ-QUEROL; SONIA GIOVINAZZI
Lugar:
Greenwich
Reunión:
Conferencia; SECED 2019 Conference: Earthquake risk and engineering towards a resilient world,; 2019
Institución organizadora:
Society for Earthquake and Civil Engineering Dynamics
Resumen:
Soil liquefaction at the ground often cause damages to various infrastructure assets. Its consequences have been widely made evident by the performance of the Telecommunication Network Services during the 2010-2011 Canterbury Earthquake Sequence (CES) which stroke the Canterbury region in New Zealand. Despite the relevance of loss of functionality of the telecommunication system, especially during the post-event recovery phase, studies in the literature on the network performance about damages due to liquefaction are still limited. Exploring an unprecedented database of in-situ geotechnical inspections collected after the CES, this research first compares alternative empirical liquefaction-triggering models available in the literature with observation maps. Then, a soil column profile is evaluated adopting a constitutive model based on generalised plasticity (?modified Pastor-Zienkiewicz?) through a Finite Element based home-developed code. The obtained results from the numerical models are finally cross-checked with the empirical analyses, the existing liquefaction investigation maps and field observations collected in the aftermath of the CES.