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Study of the Prevention Method of ±800 kV Transmission Tower Foundation Deviation

Author

Listed:
  • Xinsheng Dong

    (Electric Power Research Institute, State Grid Xinjiang Electric Power Co., Ltd., Urumqi 830000, China)

  • Guanru Wen

    (School of Electronics and Information, Xi’an Polytechnic University, Xi’an 710048, China)

  • Mingguan Zhao

    (Electric Power Research Institute, State Grid Xinjiang Electric Power Co., Ltd., Urumqi 830000, China)

  • Yang Yang

    (Electric Power Research Institute, State Grid Xinjiang Electric Power Co., Ltd., Urumqi 830000, China)

  • Meng Li

    (Electric Power Research Institute, State Grid Xinjiang Electric Power Co., Ltd., Urumqi 830000, China)

  • Long Zhao

    (School of Electronics and Information, Xi’an Polytechnic University, Xi’an 710048, China)

Abstract

The stability of transmission tower bases is key to ensuring the safe operation of power lines. This paper proposes a joint displacement-control technique for foundation-inclined piles and prestressed foundation tie beams to address the problem of tower base displacement and durability degradation caused by environmental factors. A finite element model of an exposed-pile transmission tower conforming to the structural characteristics of the actual line tower was established based on the current situation of Tower 292 of the ±800 kV Tianzhong line in Xinjiang, China. Three different displacement-control schemes were analyzed under the combined effects of tower line load, ice-cover load, and wind load, including changing exposed pile height, changing inclined pile tilt angle, and increasing the prestressed foundation tie beam. The analysis shows that the combined displacement-control technology of foundation-inclined piles and prestressed foundation tie beams can reduce the horizontal displacement of EHV tower foundations by more than 50%, which greatly reduces safety problems caused by tower displacement and effectively improves tower durability.

Suggested Citation

  • Xinsheng Dong & Guanru Wen & Mingguan Zhao & Yang Yang & Meng Li & Long Zhao, 2023. "Study of the Prevention Method of ±800 kV Transmission Tower Foundation Deviation," Energies, MDPI, vol. 16(6), pages 1-17, March.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:6:p:2557-:d:1091349
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    References listed on IDEAS

    as
    1. Hui Hou & Hao Geng & Yong Huang & Hao Wu & Xixiu Wu & Shiwen Yu, 2019. "Damage Probability Assessment of Transmission Line-Tower System Under Typhoon Disaster, Based on Model-Driven and Data-Driven Views," Energies, MDPI, vol. 12(8), pages 1-17, April.
    2. Junling Chen & Jinwei Li & Qize Li & Youquan Feng, 2021. "Strengthening Mechanism of Studs for Embedded-Ring Foundation of Wind Turbine Tower," Energies, MDPI, vol. 14(3), pages 1-16, January.
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