Structural Design and Mechanical Analysis of the Rock-Anchored Crane Beam in the Underground Powerhouse of Nanshankou Pumped Storage Power Station

DOI

10.2991/978-94-6463-932-2_35How to use a DOI?

Keywords

Pumped storage; Rock wall crane beam; Finite element analysis; Anchor stress

Abstract

In recent years, rock wall crane beams have been widely utilized in the construction of underground powerhouses for hydropower projects both domestically and internationally, owing to their significant technical advantages. This paper presents the structural design and operational mechanical performance of the rock wall crane beam in the underground powerhouse of the Nanshankou Pumped Storage Power Station. The anti-sliding stability and anchor bolt design were verified using the rigid body static equilibrium method, while finite element analysis evaluated the stress distribution of anchor bolts and the mechanical properties of the contact interface between the crane beam and rock bench. The results indicate that during operation, the maximum stresses obtained from the pure friction model and the shear-cut-off model were 106.5 MPa, which remains below the design tensile strength. In addition, all anti-sliding stability safety factors met the required standards. The findings offer valuable insights for the stability assessment and design of similar rock-wall crane beam structures.

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  - Lei He
PY  - 2025
DA  - 2025/12/22
TI  - Structural Design and Mechanical Analysis of the Rock-Anchored Crane Beam in the Underground Powerhouse of Nanshankou Pumped Storage Power Station
BT  - Proceedings of the 2025 2nd International Conference on Civil Engineering Structures and Concrete Materials (CESCM 2025)
PB  - Atlantis Press
SP  - 348
EP  - 354
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-932-2_35
DO  - 10.2991/978-94-6463-932-2_35
ID  - He2025
ER  -