Evaluation of Liquefaction Potential of Sands under Buildings     

Liquefaction of foundation soils during earthquakes causes settlements and overturning of the buildings embedded in or resting on them. Performance-based liquefaction assessment of the foundation soils need to be investigated for the existing buildings on liquefiable soils. Furthermore, when a liquefiable soil is mitigated by any soil improvement technique, the mitigation project should be designed based on the performance of the foundation soil under the building. This research focuses on the modification of the simplified procedure for liquefaction assessment for the existence of a building and its comparison with some liquefaction assessment models developed in the literature including the soil-structure interaction effect.

Finally, liquefaction-induced settlements or overturning of a building is evaluated numerically in a finite element software program for a specific case and the results are compared with the results obtained from modified simplified procedure and other models in the literature.