NTPC Transactions on Energy Research

A NETRA Initiative
Editor(s):

S.Shaswattam, Anil Kumar Das, Subrata Sarkar, Prahlad Halder

ISBN:
978-94-6463-848-6
Type of Book:
Edited Volume
Copyright Year:
2025
Open Access

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ChapterPages 29-37

Failure Analysis of Spillway Gate of a Hydro Project - A Metallurgical Perspective

Authors
Deepak Kumar Gope1, Anand D. Varma1, Anil Kumar Das1, Prahlad Halder1, *
1Advanced Materials Research Lab, NTPC Energy Technology Research Alliance, NTPC Ltd., Greater Noida, Uttar Pradesh, India
*Corresponding author. Email: prahladhalder@ntpc.co.in
Corresponding Author
Prahlad Halder
Available Online 1 October 2025.
DOI
10.2991/978-94-6463-849-3_3How to use a DOI?
Keywords
Spillway gate; girder beam; microstructure; weld structure
Abstract

The spillway gate plays a crucial role in ensuring the safety and structural integrity of a dam in any hydroelectric project, as it regulates the reservoir’s water level to prevent it from exceeding its maximum capacity. Understanding the mechanism and causes of spillway gate failures is essential for enhancing their safety and improving reliability of the gate. The present case study investigates the analysis of a spillway gate failure of a hydropower plant in which the girder plate cracked in between the spindle support flanges. In-depth metallurgical analysis along with macro-study were carried out to identify the cause of failure and further preventive action plan was proposed. Microstructural analysis revealed that repair welding was carried out at the failed location which compromises the structural integrity of the component. The findings highlight the need to strengthen the quality assurance management and fabrication procedures for spillway gates to ensure their reliability and performance.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits any noncommercial use, sharing, 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 you modified the licensed material. You do not have permission under this license to share adapted material derived from this chapter or parts of it.
Book Title
NTPC Transactions on Energy Research
Book Sub Title
A NETRA Initiative
Publication Date
1 October 2025
Print ISBN
978-94-6463-848-6
E-ISBN
978-94-6463-849-3
DOI
10.2991/978-94-6463-849-3_3How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits any noncommercial use, sharing, 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 you modified the licensed material. You do not have permission under this license to share adapted material derived from this chapter or parts of it.

Cite this article

risenwbib
TY  - CHAP
AU  - Deepak Kumar Gope
AU  - Anand D. Varma
AU  - Anil Kumar Das
AU  - Prahlad Halder
ED  - S.Shaswattam
ED  - Anil Kumar Das
ED  - Subrata Sarkar
ED  - Prahlad Halder
PY  - 2025
DA  - 2025/10/01
TI  - Failure Analysis of Spillway Gate of a Hydro Project - A Metallurgical Perspective
BT  - NTPC Transactions on Energy Research
PB  - Springer nature singapore
SP  - 29
EP  - 37
CY  - singapore
SN  - 978-94-6463-849-3
UR  - https://doi.org/10.2991/978-94-6463-849-3_3
DO  - 10.2991/978-94-6463-849-3_3
ID  - Gope2025
ER  -