Comparison of Tunnel Options for Overhead Electrified Highways

DOI

10.2991/978-94-6463-473-0_11How to use a DOI?

Keywords

New energy; Overhead electrified highway; Structural analysis; Force characteristics

Abstract

To address the problems caused by the new energy overhead electrified highway, such as reduced normal driving lanes, susceptibility to extreme weather conditions, and inapplicability in inner cities, this paper takes Kunming, Yunnan Province as an example. This study examines three different tunnel structures: wall panel box structure, ribbed wall box structure, and combined box structure. The finite element modeling of these structures was performed using MIDAS GTS NX software. The study conducted a comparative analysis of force characteristics, economy, and construction difficulty. The results showed that 1) The maximum deformation of the wall-plate box structure occurs in the middle of the top plate between the side wall and the partition wall, with a maximum deformation value of 0.057 m. The economic impact is generally positive, the construction difficulty is relatively straightforward, and the top space is not optimally utilized; 2) The ribbed wall plate type box structure is a cost-effective solution that utilizes less material, resulting in a more economical construction. However, the force characteristics at the center column are not optimal, with a maximum bending moment of 610KN.m; 3) The combined box structure exhibits the most favorable economic characteristics and the highest space utilization rate. However, it is more challenging to construct than the other two schemes. The maximum deformation is located in the middle of the top plate between the center column and the side wall, with a maximum deformation value of 0.058 m. After analyzing and comparing the three systems, it is clear that each system has its own advantages and disadvantages. However, they can provide useful reference points for the practical application of overhead electrified highways in China.

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  - 2024/08/22
TI  - Comparison of Tunnel Options for Overhead Electrified Highways
BT  - Proceedings of the 2024 3rd International Conference on Applied Mechanics and Engineering Structures (AMES 2024)
PB  - Atlantis Press
SP  - 98
EP  - 108
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-473-0_11
DO  - 10.2991/978-94-6463-473-0_11
ID  - Shen2024
ER  -