Version 1
: Received: 29 July 2024 / Approved: 30 July 2024 / Online: 31 July 2024 (08:59:44 CEST)
How to cite:
Liu, Y.; Wang, Z.; Liu, X.; Han, J. Study on Leakage Assessment and Stability Analysis of Water Level Changes on Tunnels near Reservoirs. Preprints2024, 2024072479. https://doi.org/10.20944/preprints202407.2479.v1
Liu, Y.; Wang, Z.; Liu, X.; Han, J. Study on Leakage Assessment and Stability Analysis of Water Level Changes on Tunnels near Reservoirs. Preprints 2024, 2024072479. https://doi.org/10.20944/preprints202407.2479.v1
Liu, Y.; Wang, Z.; Liu, X.; Han, J. Study on Leakage Assessment and Stability Analysis of Water Level Changes on Tunnels near Reservoirs. Preprints2024, 2024072479. https://doi.org/10.20944/preprints202407.2479.v1
APA Style
Liu, Y., Wang, Z., Liu, X., & Han, J. (2024). Study on Leakage Assessment and Stability Analysis of Water Level Changes on Tunnels near Reservoirs. Preprints. https://doi.org/10.20944/preprints202407.2479.v1
Chicago/Turabian Style
Liu, Y., Xiao Liu and Jianyong Han. 2024 "Study on Leakage Assessment and Stability Analysis of Water Level Changes on Tunnels near Reservoirs" Preprints. https://doi.org/10.20944/preprints202407.2479.v1
Abstract
The geological and hydrological conditions of tunnels near reservoirs are complex, and the impact of water level changes on the stability and leakage assessment of the lining structure is not considered in the current leakage evaluation. In order to construct an evaluation model for leakage level of tunnels near reservoirs, the influence of water level changes on tunnel stability and changes in environmental conditions on the leakage of tunnels were researched. Based on the AHP and extensibility theory, a hierarchical system for leakage assessment, incorporating values from nine indexes representing three aspects: geological conditions, hydrological conditions, and tunnel engineering. Numerical simulation was used to analyze the influence of water level changes. It was found that the water level change index greatly influences the displacement and stress distribution inside the tunnel structure. The leakage evaluation model was applied to the Tiebeishan Tunnel, resulting in a rating of 3, indicating medium-level leakage. Attention should be paid to water leakage in tunnels with changes in reservoir water levels. The leakage evaluation model for tunnels near reservoirs can effectively assess leakage levels under various conditions, providing a reference for safety assessments of tunnel leakage near reservoirs.
Keywords
tunnels near reservoirs; leakage asseessment; analytic hierarchy process (AHP); numerical analysis
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
