Comparison of Prefabricated Assembled Tunnel Schemes Based on Overhead Electrified Highways

DOI

10.2991/978-94-6463-514-0_82How to use a DOI?

Keywords

Overhead electrified highway; numerical simulation; force characteristics; scheme comparison

Abstract

In order to address the ecological challenges posed by overhead electrified highways, including the reduction of driving lanes, the exacerbation of extreme weather events, and the incompatibility with inner-city environments where overhead resources are scarce, three prefabricated and assembled new bridge-tunnel structures have been designed. The Guangfu Road in Kunming City, Yunnan Province, has been selected as a case study. The spatial finite-element modeling and numerical simulation calculations have been carried out using the MIDAS GTS NX and MIDAS CIVIL software for the three structures. A comprehensive comparison is made between the three options in terms of force characteristics, economy. This is achieved through the use of numerical simulation calculations. The findings of the study indicate that: 1) Scheme 1 is less economical, the construction difficulty is general, the force characteristics of the components are better but the side wall corners are worse; 2) Scheme 2 saves materials, the economy is better, the construction difficulty is simple, and the force at the corners of the side walls and at the center of the roof slab span is worse; 3) Scheme 3 has the best economy, the construction difficulty is more difficult compared to the other two schemes, and the attention to the maintenance of the later works is needed. In summary, the three schemes have their own respective advantages and disadvantages. However, they can also serve as a reference scheme for the practical application of overhead electrified highways.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Jingnan Shen
PY  - 2024
DA  - 2024/09/28
TI  - Comparison of Prefabricated Assembled Tunnel Schemes Based on Overhead Electrified Highways
BT  - Proceedings of the 2024 7th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA 2024)
PB  - Atlantis Press
SP  - 850
EP  - 859
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-514-0_82
DO  - 10.2991/978-94-6463-514-0_82
ID  - Shen2024
ER  -