A numerical study on the effect of basement excavation and fibre reinforced concrete as tunnel lining material
Farzana Iqbal, Malavika Varma
download PDFAbstract. Metros are one of the important transportation systems in urban areas. Due to rapid development in urban areas, there is huge commercial demand resulting in the development of underground spaces are rapid. Some of the developments may have deep excavations for basements in close proximity to existing tunnels. If the induced tunnel deformation and internal forces exceed the capacity of the tunnel structures then damages such as segmental cracking, leakage and longitudinal distortion of the tracks occur and it threatens the safety of the passengers and hence is a major concern. A parametric study on the effect of basement excavation on the underground metro in soil gives an idea about the influence of various factors like lining material and lining thickness. The crown and right spring line undergo more displacements in both the excavation and loading stage. From the study it was observed that, providing FRC as tunnel lining material has significant effect on reducing foundation settlement.
Keywords
Tunnel, Tunnel Lining, Basement Excavation, Finite Element Modelling (FEM), Fibre Reinforced Concrete (FRC)
Published online 8/10/2023, 11 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Farzana Iqbal, Malavika Varma, A numerical study on the effect of basement excavation and fibre reinforced concrete as tunnel lining material, Materials Research Proceedings, Vol. 31, pp 313-323, 2023
DOI: https://doi.org/10.21741/9781644902592-33
The article was published as article 33 of the book Advanced Topics in Mechanics of Materials, Structures and Construction
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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