Liquefaction Potential Evaluation by Deterministic and Probabilistic Approaches

Bangladesh is one of the world's most disaster-prone areas. The northwest region seismically active region. Dinajpur district closest to Himalayan frontal thrust, making it vulnerable earthquake-related liquefaction. Therefore, in-situ parameters are used assess liquefaction susceptibility subsurface geology for in terms soil safety factor (FS), potential index (LPI), and probability (PL). This study deterministic probabilistic techniques estimate area based on standard penetration test (SPT) N values. SPT data was collected at 160 different places within area. In an earthquake scenario with Mw = 6.5, resistance evaluated each location using a 0.20g peak ground acceleration (PGA). results SPT-based assessment were found be considerably different. strata prone zones city have been determined common comparison. According techniques, has that, out locations, 36 50 sites susceptible Then, geospatial (IDW interpolation), hazard maps created depending particular locations. Finally, independent secondary dataset, resulting validated examine developed approach. obtained R2values regression analysis event more than 0.79. produced map may utilized successfully planning, management, long-term development studied Doi: 10.28991/CEJ-2022-08-07-010 Full Text: PDF