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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Interaction of Transmission Tower Footing with Twin Rock Tunnel
https://orcid.org/http://orcid.org/0000-0001-6610-8960
https://orcid.org/http://orcid.org/0000-0003-3409-567X
https://orcid.org/http://orcid.org/0000-0002-9570-6801
Stability of transmission towers against all odds is always a challenging task in electricity distribution network. Foundation settlement of transmission tower beyond permissible limit, due to any ground related issue, is undesirable. On the other hand, excavation in rock for tunneling purposes are on swing in hilly and terai belts. To facilitate the demand of sustainable development, engineers have been forced to construct tunnels, even beneath the existing tunnels in different cities. The present study has been focused on stability analysis of transmission tower footing considering rock-structure-interaction. Finite element analysis has been adopted to carried using Abaqus. A 2D elastoplastic numerical model of width 30 m has been generated with two tunnels of diameter 5 m lying over each other. Tunnels are considered to be excavated in fresh and highly weathered basalt modeled using Mohr column failure criterion. On top of the ground, a transmission tower has been considered resting on concrete footing of 4.5 m. Analysis has been done varying spacing between tunnels as 4, 8, 12, and 16 m. Outcome shows that relative deformation and principal strain has inversely proportional to the spacing between the tunnels. The study concludes that the loads transferred from the transmission tower footing to the tunnels has significant effect. Tunnels are more stable when spacing between them are kept reasonably larger but if we have to construct tunnels with less spacing greater emphasis should be given on design and precision of construction method.
Interaction of Transmission Tower Footing with Twin Rock Tunnel
https://orcid.org/http://orcid.org/0000-0001-6610-8960
https://orcid.org/http://orcid.org/0000-0003-3409-567X
https://orcid.org/http://orcid.org/0000-0002-9570-6801
Stability of transmission towers against all odds is always a challenging task in electricity distribution network. Foundation settlement of transmission tower beyond permissible limit, due to any ground related issue, is undesirable. On the other hand, excavation in rock for tunneling purposes are on swing in hilly and terai belts. To facilitate the demand of sustainable development, engineers have been forced to construct tunnels, even beneath the existing tunnels in different cities. The present study has been focused on stability analysis of transmission tower footing considering rock-structure-interaction. Finite element analysis has been adopted to carried using Abaqus. A 2D elastoplastic numerical model of width 30 m has been generated with two tunnels of diameter 5 m lying over each other. Tunnels are considered to be excavated in fresh and highly weathered basalt modeled using Mohr column failure criterion. On top of the ground, a transmission tower has been considered resting on concrete footing of 4.5 m. Analysis has been done varying spacing between tunnels as 4, 8, 12, and 16 m. Outcome shows that relative deformation and principal strain has inversely proportional to the spacing between the tunnels. The study concludes that the loads transferred from the transmission tower footing to the tunnels has significant effect. Tunnels are more stable when spacing between them are kept reasonably larger but if we have to construct tunnels with less spacing greater emphasis should be given on design and precision of construction method.
Interaction of Transmission Tower Footing with Twin Rock Tunnel
https://orcid.org/http://orcid.org/0000-0001-6610-8960
https://orcid.org/http://orcid.org/0000-0003-3409-567X
https://orcid.org/http://orcid.org/0000-0002-9570-6801
Stability of transmission towers against all odds is always a challenging task in electricity distribution network. Foundation settlement of transmission tower beyond permissible limit, due to any ground related issue, is undesirable. On the other hand, excavation in rock for tunneling purposes are on swing in hilly and terai belts. To facilitate the demand of sustainable development, engineers have been forced to construct tunnels, even beneath the existing tunnels in different cities. The present study has been focused on stability analysis of transmission tower footing considering rock-structure-interaction. Finite element analysis has been adopted to carried using Abaqus. A 2D elastoplastic numerical model of width 30 m has been generated with two tunnels of diameter 5 m lying over each other. Tunnels are considered to be excavated in fresh and highly weathered basalt modeled using Mohr column failure criterion. On top of the ground, a transmission tower has been considered resting on concrete footing of 4.5 m. Analysis has been done varying spacing between tunnels as 4, 8, 12, and 16 m. Outcome shows that relative deformation and principal strain has inversely proportional to the spacing between the tunnels. The study concludes that the loads transferred from the transmission tower footing to the tunnels has significant effect. Tunnels are more stable when spacing between them are kept reasonably larger but if we have to construct tunnels with less spacing greater emphasis should be given on design and precision of construction method.
Interaction of Transmission Tower Footing with Twin Rock Tunnel
Lecture Notes in Civil Engineering
Kumar Shukla, Sanjay (Herausgeber:in) / Raman, Sudharshan N. (Herausgeber:in) / Bhattacharjee, Bishwajit (Herausgeber:in) / Bhattacharjee, J. (Herausgeber:in) / Zaid, Mohammad (Autor:in) / Faraz Athar, Mohd. (Autor:in) / Rehan Sadique, Md. (Autor:in)
30.04.2021
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Interaction of Transmission Tower Footing with Twin Rock Tunnel
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