Static and Dynamic Analysis of the Shielded Tunnel in Alluvium Soil with 2D FEM Model

Transportation tunnels are strategic parts of all urban development projects. Challenges are faced while selecting the excavation techniques and support types in these underground constructions. Hence, sufficient information and knowledge are required while designing the shield support system in sof...

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Main Authors: Khan, M.A., Sadique, M.R., Harahap, I.H., Zaid, M., Alam, M.M.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.23777 /
Published: Springer 2021
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85103383168&doi=10.1007%2fs40515-021-00160-z&partnerID=40&md5=82b35a1129b2f98632d540f54fdfc972
http://eprints.utp.edu.my/23777/
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spelling utp-eprints.237772021-08-19T13:10:23Z Static and Dynamic Analysis of the Shielded Tunnel in Alluvium Soil with 2D FEM Model Khan, M.A. Sadique, M.R. Harahap, I.H. Zaid, M. Alam, M.M. Transportation tunnels are strategic parts of all urban development projects. Challenges are faced while selecting the excavation techniques and support types in these underground constructions. Hence, sufficient information and knowledge are required while designing the shield support system in soft ground tunnelling. In this study, a two-dimensional plane strain finite element simulation of a tunnel having 350-mm thick reinforced concrete liner has been carried out. The effects of soil stratification, degree of saturation, and seismic loading have been considered for the analyses. Mohr-Coulomb�s constitutive model has been adopted to simulate the linear elastic-plastic behaviour of soil in static analysis. Furthermore, the dynamic response of horizontal shear waves (S-wave) has also been investigated on the tunnel�s model. It was observed numerically that the stresses and deformation reduced to 15 and 30 respectively when sandy silt (SM), soil layer moved towards liner in stratification analysis. The tangential and radial stresses increased by 24 and 35, respectively, due to groundwater presence above the crown. Moreover, vertical and horizontal settlements have increased exponentially that led to a reduction in the shear strength of soil due to variation in water level. Also, ovaling (egging) deformation was observed in the liner due to the propagation of seismic shear waves at the base of the tunnel. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. Springer 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85103383168&doi=10.1007%2fs40515-021-00160-z&partnerID=40&md5=82b35a1129b2f98632d540f54fdfc972 Khan, M.A. and Sadique, M.R. and Harahap, I.H. and Zaid, M. and Alam, M.M. (2021) Static and Dynamic Analysis of the Shielded Tunnel in Alluvium Soil with 2D FEM Model. Transportation Infrastructure Geotechnology . http://eprints.utp.edu.my/23777/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Transportation tunnels are strategic parts of all urban development projects. Challenges are faced while selecting the excavation techniques and support types in these underground constructions. Hence, sufficient information and knowledge are required while designing the shield support system in soft ground tunnelling. In this study, a two-dimensional plane strain finite element simulation of a tunnel having 350-mm thick reinforced concrete liner has been carried out. The effects of soil stratification, degree of saturation, and seismic loading have been considered for the analyses. Mohr-Coulomb�s constitutive model has been adopted to simulate the linear elastic-plastic behaviour of soil in static analysis. Furthermore, the dynamic response of horizontal shear waves (S-wave) has also been investigated on the tunnel�s model. It was observed numerically that the stresses and deformation reduced to 15 and 30 respectively when sandy silt (SM), soil layer moved towards liner in stratification analysis. The tangential and radial stresses increased by 24 and 35, respectively, due to groundwater presence above the crown. Moreover, vertical and horizontal settlements have increased exponentially that led to a reduction in the shear strength of soil due to variation in water level. Also, ovaling (egging) deformation was observed in the liner due to the propagation of seismic shear waves at the base of the tunnel. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
format Article
author Khan, M.A.
Sadique, M.R.
Harahap, I.H.
Zaid, M.
Alam, M.M.
spellingShingle Khan, M.A.
Sadique, M.R.
Harahap, I.H.
Zaid, M.
Alam, M.M.
Static and Dynamic Analysis of the Shielded Tunnel in Alluvium Soil with 2D FEM Model
author_sort Khan, M.A.
title Static and Dynamic Analysis of the Shielded Tunnel in Alluvium Soil with 2D FEM Model
title_short Static and Dynamic Analysis of the Shielded Tunnel in Alluvium Soil with 2D FEM Model
title_full Static and Dynamic Analysis of the Shielded Tunnel in Alluvium Soil with 2D FEM Model
title_fullStr Static and Dynamic Analysis of the Shielded Tunnel in Alluvium Soil with 2D FEM Model
title_full_unstemmed Static and Dynamic Analysis of the Shielded Tunnel in Alluvium Soil with 2D FEM Model
title_sort static and dynamic analysis of the shielded tunnel in alluvium soil with 2d fem model
publisher Springer
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85103383168&doi=10.1007%2fs40515-021-00160-z&partnerID=40&md5=82b35a1129b2f98632d540f54fdfc972
http://eprints.utp.edu.my/23777/
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score 11.62408

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