Review of earthquake-induced liquefaction potential in reclaimed urban areas: Insights from Dhaka city

This review paper examines the potential for earthquake-induced liquefaction in reclaimed urban areas, with a focus on Dhaka City as a case study. Rapid urbanization and land reclamation in Dhaka have increased concerns about the stability of reclaimed lands during seismic events. This paper synthesizes findings from prior studies, focusing on geotechnical parameters such as SPT-N values, cone tip resistance, local friction, and friction ratio. Key influencing factors, including peak ground acceleration, earthquake magnitude, soil type, and reclamation methods, are analyzed to assess their role in liquefaction susceptibility. Evidence suggests that areas reclaimed with dredged soil, especially at shallow to moderate depths, are more prone to liquefaction under seismic loading. Variability in parameters such as over-consolidation ratio, lateral earth pressure, and internal friction angle highlights the need for localized investigations. This review emphasizes the importance of integrating advanced geotechnical techniques and seismic risk assessments to ensure the resilience of reclaimed urban areas.