Proceedings of the 2024 8th International Conference on Civil Architecture and Structural Engineering (ICCASE 2024)

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Analysis of bulge mechanism of penstock of a hydropower station

Authors
Shaojia Yang1, *, Yongqing Wang2, Hongbo Zhu1
1PowerChina Huadong Engineering Corporation Limited, Hangzhou, 311122, China
2Shangrao River and Lake Management and Protection Center, Shangrao, 334000, China
*Corresponding author. Email: yang_sj1@hdec.com
Corresponding Author
Shaojia Yang
Available Online 30 June 2024.
DOI
10.2991/978-94-6463-449-5_3How to use a DOI?
Keywords
hydropower station; penstock; bulge mechanism
Abstract

In this study, the deformation and leakage of pressure steel pipe in a hydropower station were investigated and analyzed. Through calculation and theoretical analysis, it is concluded that due to the failure of the external drainage system, when the internal water extravasation, the external water pressure can not be eliminated in time, resulting in excessive water pressure and deformation of the external steel pipe. As a thin-shell structure, the pressure steel pipe is prone to buckling and instability when subjected to external pressure, and bulging or pipe wall compression often occurs. Stability against external pressure has become an important factor affecting the safety and stability of pressure steel pipes. Therefore, even under normal working conditions, steel pipe without the stiffening ring can meet the external pressure stability, and the design can also consider setting the stiffening ring, because the stiffening ring has a strong ability to resist external pressure.

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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Volume Title
Proceedings of the 2024 8th International Conference on Civil Architecture and Structural Engineering (ICCASE 2024)
Series
Atlantis Highlights in Engineering
Publication Date
30 June 2024
ISBN
978-94-6463-449-5
ISSN
2589-4943
DOI
10.2991/978-94-6463-449-5_3How to use a DOI?
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.

Cite this article

risenwbib
TY  - CONF
AU  - Shaojia Yang
AU  - Yongqing Wang
AU  - Hongbo Zhu
PY  - 2024
DA  - 2024/06/30
TI  - Analysis of bulge mechanism of penstock of a hydropower station
BT  - Proceedings of the 2024 8th International Conference on Civil Architecture and Structural Engineering (ICCASE 2024)
PB  - Atlantis Press
SP  - 18
EP  - 25
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-449-5_3
DO  - 10.2991/978-94-6463-449-5_3
ID  - Yang2024
ER  -