Abstract
In the last few years, different numerical models for the study of railway vibrations in tunnels have been developed. Virtually all of them assume an elastic and linear behaviour of the soil. In this article the influence of soil constitutive model is investigated, comparing an “advanced” model of the soil called Hardening Soil model with small-strain stiffness (HSsmall) and the Mohr-Coulomb (MC) model. Moreover, the influence of soil stiffness has been studied when this is considered in the range of small strains (E50) or in the range of very small strains (E0). These models have been applied to a real case through a 2D finite element model formulated in the time domain, where it is concluded that both soil stiffness and the amplitude of the maximum tangential strain are the most important geotechnical parameters when estimating the deformational parameters and the constitutive models of the soil most adequate for the study of railway vibrations in tunnels.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.