Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Twin Tunneling-Induced Ground Deformations Under Greenfield Conditions: Parametric Study
https://orcid.org/http://orcid.org/0009-0005-3711-5631
Tunnels are constructed for transportation purposes such as roadways, railways, and subways. Twin tunnels with lengths ranging from a few meters to many kilometers are constructed for various underground metro projects in Indian cities such as Delhi, Mumbai, and Chennai to enhance daily commuting. Tunneling leads to the settlement of ground surface. This needs to be predicted accurately for an effective designing of tunnel. In this study, twin tunnel excavation has been simulated using the finite element program PLAXIS 2D. Volume loss at the tunnel is used to represent the effect of tunneling on ground and modeled using appropriate line contraction value, applied to the tunnel linings. In the first part of this paper, twin tunneling-induced ground settlements obtained using PLAXIS 2D are compared with those obtained using empirical method for a predefined value of volume loss under greenfield conditions. The second part of the paper represents a parametric study which includes the effect of various influencing parameters such as tunnel axis depth, tunnel diameter, center-to-center spacing between the tunnels, and volume loss on the ground surface settlements under greenfield conditions. The results of this study are found to be in good agreement with the previous studies available in literature.
Twin Tunneling-Induced Ground Deformations Under Greenfield Conditions: Parametric Study
https://orcid.org/http://orcid.org/0009-0005-3711-5631
Tunnels are constructed for transportation purposes such as roadways, railways, and subways. Twin tunnels with lengths ranging from a few meters to many kilometers are constructed for various underground metro projects in Indian cities such as Delhi, Mumbai, and Chennai to enhance daily commuting. Tunneling leads to the settlement of ground surface. This needs to be predicted accurately for an effective designing of tunnel. In this study, twin tunnel excavation has been simulated using the finite element program PLAXIS 2D. Volume loss at the tunnel is used to represent the effect of tunneling on ground and modeled using appropriate line contraction value, applied to the tunnel linings. In the first part of this paper, twin tunneling-induced ground settlements obtained using PLAXIS 2D are compared with those obtained using empirical method for a predefined value of volume loss under greenfield conditions. The second part of the paper represents a parametric study which includes the effect of various influencing parameters such as tunnel axis depth, tunnel diameter, center-to-center spacing between the tunnels, and volume loss on the ground surface settlements under greenfield conditions. The results of this study are found to be in good agreement with the previous studies available in literature.
Twin Tunneling-Induced Ground Deformations Under Greenfield Conditions: Parametric Study
https://orcid.org/http://orcid.org/0009-0005-3711-5631
Tunnels are constructed for transportation purposes such as roadways, railways, and subways. Twin tunnels with lengths ranging from a few meters to many kilometers are constructed for various underground metro projects in Indian cities such as Delhi, Mumbai, and Chennai to enhance daily commuting. Tunneling leads to the settlement of ground surface. This needs to be predicted accurately for an effective designing of tunnel. In this study, twin tunnel excavation has been simulated using the finite element program PLAXIS 2D. Volume loss at the tunnel is used to represent the effect of tunneling on ground and modeled using appropriate line contraction value, applied to the tunnel linings. In the first part of this paper, twin tunneling-induced ground settlements obtained using PLAXIS 2D are compared with those obtained using empirical method for a predefined value of volume loss under greenfield conditions. The second part of the paper represents a parametric study which includes the effect of various influencing parameters such as tunnel axis depth, tunnel diameter, center-to-center spacing between the tunnels, and volume loss on the ground surface settlements under greenfield conditions. The results of this study are found to be in good agreement with the previous studies available in literature.
Twin Tunneling-Induced Ground Deformations Under Greenfield Conditions: Parametric Study
Lecture Notes in Civil Engineering
Sivakumar Babu, G. L. (Herausgeber:in) / Mulangi, Raviraj H. (Herausgeber:in) / Kolathayar, Sreevalsa (Herausgeber:in) / Agarwal, Jyoti (Autor:in) / Sarkar, Raju (Autor:in)
International Conference on Sustainable Infrastructure: Innovation, Opportunities and Challenges ; 2023 ; Mangalore, India
06.09.2024
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Pipeline Response to Ground Deformations Induced by Tunneling
| British Library Conference Proceedings | 2017
Jacking under Greenfield sites
| Online Contents | 1994