Application of Empirical, Analytical, and Numerical Approaches in Mining Geomechanics, 2nd Edition

A special issue of Mining (ISSN 2673-6489).

Deadline for manuscript submissions: 31 May 2025 | Viewed by 1291

Special Issue Editors


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Guest Editor
Department of Civil and Mineral Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
Interests: experimental rock mechanics; rock fracture mechanics; rock mass characterization; transport properties in rocks; THM properties of rocks; true triaxial testing of rock samples; triggered and induced seismicity; hydrofracking under triaxial and true triaxial stress regimes

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Guest Editor
Department of Civil and Mineral Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
Interests: rock dynamics and fragmentation; modelling of dynamic fracture process and blasting; detonation physics and performance of explosives impact; strain-rate sensitivity; strength and fracture of rock; explosion hazards and blast resistant structures
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Special Issue Information

Dear Colleagues,

During the past few decades, mining activities and operations have benefited from the application of geomechanical and geotechnical approaches in mine planning/design and ground control management to minimize unsafe working conditions and avoid catastrophic mine failures. Appropriate mine planning and design and its subsequent modifications for any mine site requires a detailed level of ground condition investigation by an experienced geomechanical expert with sound judgment. In addition, a ground control management strategy at any mining site should oversee the geotechnical uncertainty at the design execution phase in order to avoid and mitigate the magnitudes of unfavourable results to a tolerable level.

Improved knowledge of rock mass behaviour, the development of empirical, analytical, and numerical approaches for geomechanical mine design, and proper evaluation of material characteristics under different loading conditions have contributed toward the safer execution of mining activities and the management of geotechnical risks. Continuous geotechnical data collection and its optimization using smarter ground support instrumentation and the application of advanced data analysis techniques have proved to be essential tools in providing proactive measures to enhance mine production efficiency and limit the potential risk of geomechanical failures.

This Special Issue will comprise a selection of papers addressing state-of-the-art approaches that are applied in mining geomechanics within the scope of the following topics:

  • Geological structures;
  • Drilling and blasting;
  • Pit slope failures;
  • Instrumentation and monitoring;
  • Rock bursts and other seismic events;
  • Geotechnical/geomechanical data collection and analysis;
  • Underground stope and pillar dimensioning;
  • Sequencing stope extraction and filling;
  • Opening size and geometry;
  • Ground support/timing and reinforcement;
  • Hydrological considerations;
  • Explosion hazards and blasting vibrations.

Dr. Mohammad H.B. (Farzine) Nasseri
Prof. Dr. Bibhu Mohanty
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Mining is an international peer-reviewed open access quarterly journal published by MDPI.

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Related Special Issue

Published Papers (2 papers)

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Research

17 pages, 18471 KiB  
Article
Finite-Difference Analysis of Influence of Borehole Diameter and Spacing on Reduction in Rockburst Potential of Burst-Prone Coal Seams
by Mikhail O. Eremin, Artyom O. Chirkov, Albert Pazhin, Sergey A. Laptev and Dmitriy V. Chanov
Mining 2024, 4(4), 1058-1074; https://doi.org/10.3390/mining4040058 - 2 Dec 2024
Viewed by 304
Abstract
Decreasing the rockburst potential in longwall mining of burst-prone coal seams has been a longstanding challenge for geotechnical engineering worldwide. One of the effective approaches is drilling of relief boreholes in front of the coal seam face from the airways. This work presents [...] Read more.
Decreasing the rockburst potential in longwall mining of burst-prone coal seams has been a longstanding challenge for geotechnical engineering worldwide. One of the effective approaches is drilling of relief boreholes in front of the coal seam face from the airways. This work presents a novel approach based on the integral rockburst factor (KIrb) taking account of the length of the dynamic abutment stress influence zone and the ratio of the vertical stress to the remote field virgin stress. The geotechnical conditions of seam 3 of the Alardinskaya mine (Kuznetsky basin, Russia) are taken as a study site. An approach of the finite-difference continuum damage mechanics is employed to describe the processes of deformation and fracture of coal and host rocks using an in-house software. The results indicate that the abutment stress maximum shifts deep into the seam after drilling and that the stress distribution along the coal seam horizon is a superposition of the solutions similar to those of the elastoplastic Kirsch problem. The results also indicate that the curves of KIrb dependence on spacing between the boreholes and their diameter are nonlinear and non-monotonic functions, which allows for optimizing of the drilling technology. Full article
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23 pages, 13906 KiB  
Article
FLAC3D Simulation of Caving Mechanism and Strata Fracture Response in Underground Mining
by Mahdi Saadat, Mattin Khishvand and Andrew Seccombe
Mining 2024, 4(4), 818-840; https://doi.org/10.3390/mining4040046 - 16 Oct 2024
Viewed by 709
Abstract
This paper presents an innovative numerical approach to simulating the progressive caving of rock mass in the overburden and floor during longwall mining. A modified caving algorithm is incorporated into FLAC3D 9.0, augmented with the IMASS constitutive model, to accurately replicate the fracturing [...] Read more.
This paper presents an innovative numerical approach to simulating the progressive caving of rock mass in the overburden and floor during longwall mining. A modified caving algorithm is incorporated into FLAC3D 9.0, augmented with the IMASS constitutive model, to accurately replicate the fracturing response of various strata. This study aimed to analyze the longwall caving performance, overburden fracturing response, and shield support characteristics to optimize the mining process and enhance safety. The numerical analysis revealed a progressive stress release at the longwall face, attributed to damage in the form of spalling, which was accompanied by a high level of displacement. The fracture process zone above the shield canopy was not significant, indicating the effective performance of the shield in controlling the roof. However, the floor heave highlights the need for the implementation of effective risk and safety measures. Goaf is predicted to form with a longwall advance rate of 25.0–30.0 m, resulting from progressive macroscopic fracturing caused by the development of cracks initiated by bedding plane and rock mass failures. Above the caved zone, an active fracture zone is observed to evolve due to the continuous longwall mining and caving process. Full article
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