Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)

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Research on Failure Characteristics and Supporting Mechanisms of Surrounding Rock in Coal Rock Tunnels

Authors
Dong Li1, Jia Xin Lu1, *
1College of Civil Engineering, Liaoning Technical University, 47 Zhonghua Road, 123000, Fuxin City, Liaoning Province, China
*Corresponding author. Email: 17609856270@163.com
Corresponding Author
Jia Xin Lu
Available Online 13 June 2025.
DOI
10.2991/978-94-6463-726-7_59How to use a DOI?
Keywords
coal-rock combination; characteristics of destruction; bolt support; crack propagation; different height ratio
Abstract

The failure mechanism of anchored coal-rock composites was investigated through uniaxial compression experiments, which examined the mechanical characteristics and failure features of the samples under varying loading rates and coal-rock height ratios in order to clarify the specimens’ anchoring mechanism. The findings of the study demonstrate that the coal-rock system makes adequate adaptive adjustments at lower loading rates, suppressing crack development. As the procedure of loading rate increases, the stability of one’s anchored coal-rock composite deteriorates, leading to a significant increase in both the reach of their highest strength and kinetic energy about those anchored coal-rock composites. An anchor is a rod’s extra stress that improves the coal-rock system’s mechanical performance. The outcome is able to offer theoretical guidance with the anchoring support of coal-rock roadway roofs.

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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Volume Title
Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
Series
Atlantis Highlights in Engineering
Publication Date
13 June 2025
ISBN
978-94-6463-726-7
ISSN
2589-4943
DOI
10.2991/978-94-6463-726-7_59How 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 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  - Dong Li
AU  - Jia Xin Lu
PY  - 2025
DA  - 2025/06/13
TI  - Research on Failure Characteristics and Supporting Mechanisms of Surrounding Rock in Coal Rock Tunnels
BT  - Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
PB  - Atlantis Press
SP  - 594
EP  - 600
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-726-7_59
DO  - 10.2991/978-94-6463-726-7_59
ID  - Li2025
ER  -