ABSTRACT
The Simplified Procedure for evaluating liquefaction potential is fraught with uncertainties. These include the proposed range of the depth reduction factor, the assumption that 65% of an already uncertain ground acceleration represents actual earthquake conditions, and the establishment of the procedure based on standard penetration test, which is known for poor repeatability. These factors render the single-line demarcation presented by the CRR base curve unreliable. This present study adopts the Hasofer-Lind reliability index to investigate the influence of variability in geotechnical parameters on the likelihood of seismic liquefaction. The objective is to present a reliability-based framework using the latest Python-in-Excel tool to guide engineers and stakeholders in understanding the vulnerability associated with their choice of safety factors, especially in risk-cost analysis situations.
