This study investigates the response of pre-stressed anchored excavation walls under dynamic and pseudo-static loadings. A finite difference numerical model was developed using FLAC2D, results were successfully validated against full-scale experimental data. Analyses performed on 10, 20-m-height stabilized excavated slopes with 60° to 90° inclination angle horizon represent an applicable variet...

This study aims to develop seismic fragility curves for a typical pile-supported wharf. Fragility curve is one of the popular tools in seismic performance evaluation of a structure. The software FLAC2D was used to simulate the seismic performance of the wharf structure. Using eight time history records, occurred in past, as seismic loading, incremental dynamic analysis (IDA) was applied for sei...

In this article the seismic site response of Norcia basin, Central Italy, has been analyzed using both 1D and 2D ground numerical models. Period-dependent aggravation factors (PDAFs) quantifying difference between are provided for two representative cross-sections basin. Time-domain linear visco-elastic non-linear analyses were carried out by finite commercial program FLAC2D. For former, PDAFs ...

The excavation of tunnels in brittle rocks with high in-situ strengths under large deviatoric stresses has been shown to exhibit failure at the periphery parallel maximum stress. This can either occur instantaneously or after several hours due strength degradation that is implicitly and indirectly considered typical constitutive models. While these models are powerful tools for engineering anal...

The paper is focused on the assessment of seismic fragility curves for circular tunnels under moderate to severe earthquakes with aim improving reliability risk underground infrastructural networks. Non-linear two-dimensional dynamic analyses were performed different tunnel and soil configurations by using finite-difference method implemented in Flac2D software. applied input motions selected c...