Investigating the influence of soil conditions and surcharge mass on seismic responses of ground surface

• Published in: Journal of seismology 2021-10, Vol.25 (5), p.1301-1317
• Main Authors: Jabini Asli, Sahand, Saffari, Hamed, Saadatinezhad, Maryam
• Format: Article
• Language: English
• Subjects: Boundary conditions; Building codes; Civil engineering; Earth and Environmental Science; Earth Sciences; Earthquakes; Geophysics/Geodesy; Geotechnical Engineering & Applied Earth Sciences; Ground motion; Hydrogeology; Influence; Interaction parameters; Investigations; Mathematical models; Numerical models; Original Article; P-waves; Parameters; Properties; Seismic activity; Seismic design; Seismic response; Seismic waves; Seismology; Software; Soil; Soil conditions; Soil investigations; Soil layers; Soil properties; Soil structure; Soil surfaces; Soil types; Soil-structure interaction; Soils; Structural Geology; Two dimensional models
• ISSN: 1383-4649; 1573-157X
• DOI: 10.1007/s10950-021-10022-3

Earthquake is always known as a natural phenomenon with complex and unpredictable characteristics. One of the parameters which affects the ground motion properties is soil. Seismic wave caused by ground motion can be modified based on the soil conditions including soil type and its depth. It means the wave displays different properties after passing a soil layer. In this study, by the use of a 2D numerical model simulated by OpenSees software, the effects of soil parameters on the seismic waves have been investigated. For this purpose three different types of soil based on Eurocode 8 under eleven ground motions have been analyzed and the results in terms of pseudo-spectral acceleration (PSA) and permanent displacement of soil surface have been reported. Besides, the influence of surcharge mass on the final seismic responses, as an important parameter in soil structure interaction problems, has been studied and the obtained results under different conditions have been compared.