Symmetry and Geotechnical Engineering

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Engineering and Materials".

Deadline for manuscript submissions: closed (30 April 2026) | Viewed by 1324

Special Issue Editors


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Guest Editor
School of Geology and Mining Engineering, Xinjiang University, Urumqi 830017, China
Interests: mining engineering; geotechnical explosion; mining ecological environment protection

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Co-Guest Editor
School of Geology and Mining Engineering, Xinjiang University, Urumqi 830017, China
Interests: mining engineering; geotechnical engineering

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Guest Editor Assistant
School of Geology and Mining Engineering, Xinjiang University, Urumqi 830017, China
Interests: mining engineering; geotechnical engineering

Special Issue Information

Dear Colleagues,

Disaster prevention and control in mining engineering is fundamentally controlled by the micro-scale fracture and damage evolution processes in rock masses. Traditional theories based on continuum mechanics face significant limitations when addressing the destructive behaviors caused by multi-scale defects in rock masses, such as joints, pores, and microcracks. In recent years, with the rapid development of microfracture mechanics modeling, multi-scale numerical simulations, experimental observation techniques, and risk prediction and prevention technologies driven by big data and intelligent methods, the academic community has gradually revealed the chain-like evolution process of rock damage, from microcrack initiation and development to macrofracture. This provides a new theoretical framework and technical pathway for understanding and predicting green mining operations. This Special Issue focuses on the frontier exploration and engineering applications of rock fracture mechanics in mining engineering, highlighting new methods and advancements in related research, including but not limited to the following areas:

  • Multi-scale numerical simulation and experimental observation techniques for green mining blasting;
  • Data-driven prediction methods and model construction for blasting effects in open-pit mining;
  • Micro-scale fracture mechanisms and damage evolution laws of rock masses under freeze-thaw conditions;
  • Grouting diffusion mechanisms and disaster prevention technologies in rock masses;
  • Slope stability analysis and instability control research;
  • Mechanisms of surrounding rock deformation in tunnels and stability control technologies;
  • Ecological restoration and environmental effect research of gravel curtain layers.

Original work highlighting the latest research and technical development is encouraged, but review papers and comparative studies are also welcome.

Prof. Dr. Weiming Guan
Guest Editor

Dr. Haosen Wang
Co-Guest Editor

Dr. Xin Wang
Guest Editor Assistant

Manuscript Submission Information

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Keywords

  • mining blasting
  • mining area ecological studies
  • tunnel support
  • rock mass deformation control
  • slope stability
  • freeze-thaw damage in rock masses
  • grouting

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Published Papers (1 paper)

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Research

18 pages, 6710 KB  
Article
FLAC3D Modeling of Shear Failure and Fracture of Anchor Bolts in Surrounding Rock: A Study on Stress-Bearing Ring Reinforcement
by Rui Wang, Weiguang Zhang, Jianbiao Bai, Haosen Wang and Qiang Zhang
Symmetry 2025, 17(11), 1885; https://doi.org/10.3390/sym17111885 - 6 Nov 2025
Cited by 1 | Viewed by 952
Abstract
To address the challenge of simulating shear failure in anchor bolts within FLAC3D, a shear failure criterion, Fs(i)Fsmax(i), is proposed based on the PILE structural element. Through secondary development using the FISH programming language, a modified mechanical model [...] Read more.
To address the challenge of simulating shear failure in anchor bolts within FLAC3D, a shear failure criterion, Fs(i)Fsmax(i), is proposed based on the PILE structural element. Through secondary development using the FISH programming language, a modified mechanical model of the PILE element is established and integrated into the FLAC3D-FISH framework. Comparative analyses are conducted on shear tests of bolt shafts and on anchor bolt support performance under coal–rock interface slip conditions, using both the original PILE model and the modified mechanical model. The results demonstrate that the shear load–displacement curve of the modified PILE model clearly reflects shear failure characteristics, satisfying a quantitative shear failure criterion. Upon failure, both the shear force and axial force of the structural element at the failure point drop abruptly to zero, enabling effective simulation of shear failure in anchor bolts within the FLAC3D environment. Using the modified model, the distribution of principal stress differences in the surrounding rock after roadway excavation is analyzed. Based on this, the concept of a stress-bearing ring in the surrounding rock is introduced. The reinforcing effects of bolt length, spacing, and ultimate load capacity on the stress-bearing ring in weak and fractured surrounding rock are investigated. The findings reveal that: (1) shear failure initiates in bolt shafts near the coal–rock interfaces, occurring earlier near the coal–floor interface than near the coal–roof interface; (2) the stress-bearing ring in weak and fractured surrounding rock shows a discontinuous and uneven distribution. However, with support improvements—such as increasing bolt length, reducing spacing, and enhancing failure load—the surrounding rock gradually forms a continuous stress-bearing ring with more uniform thickness and stress distribution, migrating inward toward the roadway surface. Full article
(This article belongs to the Special Issue Symmetry and Geotechnical Engineering)
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