Study on salt expansion characteristics and influencing factors of saline soil foundation of transmission lines

DOI

10.2991/978-94-6463-429-7_39How to use a DOI?

Keywords

transmission line; tower structure; saline soil; salt expansion; optimum moisture content; grey relational analysis method; sensitivity

Abstract

Due to the high salt content, strong expansibility, and low bearing capacity of saline soil, the safety and stability of transmission line towers crossing salt lake areas are seriously threatened. In this study, the deformation of tower structure in salt lake areas was investigated using satellite remote sensing and on-site field survey methods. Indoor model tests were conducted to systematically analyze the factors affecting salt expansion deformation, including salt content, moisture content, and temperature. The grey relational analysis method was introduced to calculate the sensitivity of influencing factors. The conclusions are as follows: tower deformation and damage mainly occur in the salt lake areas; salt is the fundamental cause of salt expansion; salt expansion deformation is the most obvious in the optimum moisture content state of saline soil; the factor with the greatest impact on salt expansion characteristics of saline soil is salt content, followed by moisture content, while temperature has a relatively minor impact.

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  - Sen Kong
AU  - Shijun Ding
AU  - Shengjie Wang
AU  - Qiuyang Li
AU  - Taohui Yang
PY  - 2024
DA  - 2024/06/07
TI  - Study on salt expansion characteristics and influencing factors of saline soil foundation of transmission lines
BT  - Proceedings of the 2024 7th International Conference on Structural Engineering and Industrial Architecture (ICSEIA 2024)
PB  - Atlantis Press
SP  - 367
EP  - 380
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-429-7_39
DO  - 10.2991/978-94-6463-429-7_39
ID  - Kong2024
ER  -