A Simplified Procedure to Simulate the Interaction between a Low-rise Building and Liquefiable Soil

A Simplified Procedure to Simulate the Interaction between a Low-rise Building and Liquefiable Soil

The purpose of this project was to establish a simplified procedure for a finite difference method(FDM) in order to model the interaction between liquefiable soil and a structure, as well as to propose a parameter reduction factor for FDM. The first working item is to collect the databases for liquefaction case histories for the 1999 Chi-Chi earthquake and the 2016 Meinong earthquake. Then, the standardized soil profiles for each studied area were built. The critical liquefiable layers of the standardized soil profiles were identified by the evaluation of simplified procedures, and the settlement of the structure due to the liquefaction of soil was then analyzed by FDM using the parameter reduction approach. The parameters of critical liquefiable soil were reduced until the calculation results were comparable to the observed settlement of the buildings. The results of all analyzed cases were integrated to summarize an approach for the setting of parameter reduction for liquefiable soil under different liquefaction conditions.