The study develops and validates an advanced numerical model to simulate how fine-grained, coastal reclaimed sediments behave under earthquake shaking, focusing on liquefaction – when saturated soils temporarily lose strength and behave like a fluid. Using a fully coupled finite element approach and constitutive soil model calibrated with lab tests and field data, the researchers show that traditional empirical methods can underestimate liquefaction risk in these complex sediments. Their results demonstrate detailed pore-pressure generation and strength degradation patterns under real seismic records, highlighting the value of performance-based numerical analysis for improved assessment and design in geotechnically challenging environments.
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