ORIGINAL RESEARCH article
Front. Earth Sci.
Sec. Earth and Planetary Materials
Volume 13 - 2025 | doi: 10.3389/feart.2025.1649835
This article is part of the Research TopicAdvances in Structure, Characterization, and Failure Mechanisms of Geomaterials: Theoretical, Experimental, and Numerical ApproachesView all 13 articles
In-situ stress characteristics and rockburst prediction for a tunnel in a high in-situ stress environment
Provisionally accepted
- PowerChina Chengdu Engineering Corporation Limited Co., LTD, Chengdu, China
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As the main source of pressure around tunnel rock masses, in-situ stress must be thoroughly understood to accurately predict the potential for rockburst events, especially in high-stress construction environments. Yet, theoretical advancements in this field remain behind practical engineering demands. In this study, we used a multiple linear regression approach to determine the initial in-situ stress field across the entire Ping'an tunnel and employed strength theory to predict rockburst occurrence. The regression results closely match field measurements, and the consistently low p-values confirm the reliability of the model. In addition, the rockburst intensity predicted based on the strength criterion shows strong agreement with real-world engineering observations, demonstrating the rationality of the proposed methodology. The findings from this research contributes to a deeper understanding of the initial in-situ stress field in rockburst-prone tunnels under high in-situ stress conditions and provide a scientific basis for tunnel alignment optimization and rockburst risk assessment. These insights hold significant practical implications for the construction of similar projects.
Keywords: tunnel, High in-situ stress, Initial in-situ stress field, Rockburst, Rockburst prediction
Received: 19 Jun 2025; Accepted: 21 Jul 2025.
Copyright: © 2025 Luo, Shen, Zhang, Yao, Yang, Zhang, Wang, Yang and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Chun Luo, PowerChina Chengdu Engineering Corporation Limited Co., LTD, Chengdu, China
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