Avci, O, Bhargava, A, Nikitas, N orcid.org/0000-0002-6243-052X et al. (1 more author) (2020) Vibration annoyance assessment of train induced excitations from tunnels embedded in rock. Science of The Total Environment, 711. 134528. ISSN 0048-9697
Abstract
Train movements generate oscillations that are transmitted as waves through the track support system into its surroundings. The vibration waves propagate through the soil layers and reach to nearby buildings creating distractions for human activities and causing equipment malfunctioning. Not only the train components and the rails, but also the surrounding tunnel, soil and rock strata have dynamic characteristics that play significant roles in the vibration levels felt in a nearby structure. This paper presents a finite element study conducted to investigate the vibrations resulting from train movements in nearby subway tunnels. The subway line is located at an average horizontal distance of 50 ft (15.2 m) from the structure in assessment, which is a six-story office building. The main goal of the work is to assess the train-induced vibrations at the ground level of the building through a case study and sensitivity analysis. A plane strain finite element model is built to represent the railroad tunnel embedded in the rock and the soil stratum above it. The one train loading function is applied to the model as a point source at the track level and compared to the two-train scenario. Other simulations are undertaken for sensitivity analysis involving increased loading, decreased damping and decreased distance to tunnels. Even though there are several numerical studies on the propagation of train induced vibrations in the literature; a finite element model accompanied with a sensitivity analysis has not been discussed in detail in a technical publication before. The paper not only presents the finite element modeling but also compares the results with the criteria of Transit Noise and Vibration Impact Assessment Manual, which was published by the Federal Transit Administration (FTA) of the U.S. Department of Transportation.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 Elsevier B.V. This is an author produced version of a paper published in Science of the Total Environment. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Vibrations disturbance; Train vibrations; Ground-borne vibrations; Railroad tunnels; Tunnels embedded in rock; ANSYS; Finite element modelling |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 25 Feb 2020 15:44 |
Last Modified: | 21 Nov 2021 01:38 |
Status: | Published |
Publisher: | Elsevier BV |
Identification Number: | 10.1016/j.scitotenv.2019.134528 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:157628 |