Research on Settlement Analysis and Calculation of Taxiway Bridge

DOI

10.2991/978-94-6463-793-9_59How to use a DOI?

Keywords

taxiway bridge; frame; settlement; FLAC; Burgers-Mohr

Abstract

This article uses FLAC^3D 7.0 software to simulate, calculate, and analyze the settlement of a taxiway bridge. The boundary conditions are set as free field boundary and static boundary, and the Burgers-Mohr model is selected as the constitutive model. The Class IV and V loads of the taxiway bridge are equivalent to two types of half sine waves. Based on historical records and actual observation values, the load of the taxiway bridge is loaded through the mapping relationship between the number of periods of the half sine waves and time. The settlement data of the taxiway bridge in December 2024, simulated and calculated using the Burgers-Mohr model, is 27.56 cm, which is basically consistent with the actual situation. By December 2035, the simulated calculation will still result in an additional settlement of 5.98 cm, which may have exceeded the standard limit in practice. Certain measures need to be taken to alleviate the settlement rate. FLAC^3D 7.0 was used to simulate and calculate the settlement of the taxiway bridge at different groundwater levels. The settlement amplitude in the dry season of 2024 and 2035 was 2.76 cm and 3.36 cm larger than that in the wet season of the same year, which is basically consistent with the engineering estimation. Although precipitation wells can alleviate the leakage problem of taxiway bridge foundations, in addition to high operating and maintenance costs, they can cause additional settlement of the taxiway bridge, and there is a certain coupling effect between settlement and leakage. Therefore, it should be used with caution when the groundwater level is low, with limited auxiliary use when the groundwater level is high, and gradually reduced in use as the settlement amplitude of the taxiway bridge increases.

Copyright

© 2025 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  - Ai Li
AU  - Yonggang Yang
PY  - 2025
DA  - 2025/07/28
TI  - Research on Settlement Analysis and Calculation of Taxiway Bridge
BT  - Proceedings of the 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)
PB  - Atlantis Press
SP  - 696
EP  - 710
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-793-9_59
DO  - 10.2991/978-94-6463-793-9_59
ID  - Li2025
ER  -