LAPSE:2023.27736v1
Published Article
LAPSE:2023.27736v1
Numerical Modeling on the Fracturing and Energy Evolution of Large Deep Underground Openings Subjected to Dynamic Disturbance
April 4, 2023
Abstract
The exploitation of deep resources is necessary for human development. At the same time, high-stress environments that are deep underground bring about great challenges vis-à-vis resource exploitation. A large deep opening is sensitive to high ground stress, and is easily influenced by external interference, which can lead to geologically hazardous occurrences. To investigate the evolution of fracturing and energy in large, deep stopes subjected to dynamic loads, we established a numerical model of a stope in the Gaofeng mine. Using ANSYS/LS-DYNA software, we implemented an implicit solution to initial static stress and an explicit solution for dynamic analysis. Based on our numerical results, we obtained the fracture behavior and energy evolution under coupled static and dynamic loads. To determine the response of ground pressure to mining activity, a 24-channel microseismic monitoring system was designed for the Gaofeng mine based on the numerical analysis.
The exploitation of deep resources is necessary for human development. At the same time, high-stress environments that are deep underground bring about great challenges vis-à-vis resource exploitation. A large deep opening is sensitive to high ground stress, and is easily influenced by external interference, which can lead to geologically hazardous occurrences. To investigate the evolution of fracturing and energy in large, deep stopes subjected to dynamic loads, we established a numerical model of a stope in the Gaofeng mine. Using ANSYS/LS-DYNA software, we implemented an implicit solution to initial static stress and an explicit solution for dynamic analysis. Based on our numerical results, we obtained the fracture behavior and energy evolution under coupled static and dynamic loads. To determine the response of ground pressure to mining activity, a 24-channel microseismic monitoring system was designed for the Gaofeng mine based on the numerical analysis.
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Keywords
deep mine, dynamic load, energy evolution, fracture behavior, strain energy density
Subject
Suggested Citation
Yang C, Zhou K, Li Z, Xiong X, Lin Y, Luo Z. Numerical Modeling on the Fracturing and Energy Evolution of Large Deep Underground Openings Subjected to Dynamic Disturbance. (2023). LAPSE:2023.27736v1
Author Affiliations
Yang C: School of Resources and Safety Engineering, Central South University, Changsha 410083, China; Research Center for Mining Engineering and Technology in Cold Regions, Central South University, Changsha 410083, China [ORCID]
Zhou K: School of Resources and Safety Engineering, Central South University, Changsha 410083, China; Research Center for Mining Engineering and Technology in Cold Regions, Central South University, Changsha 410083, China
Li Z: School of Resources and Safety Engineering, Central South University, Changsha 410083, China
Xiong X: School of Resources and Safety Engineering, Central South University, Changsha 410083, China; Research Center for Mining Engineering and Technology in Cold Regions, Central South University, Changsha 410083, China
Lin Y: School of Resources and Safety Engineering, Central South University, Changsha 410083, China; Research Center for Mining Engineering and Technology in Cold Regions, Central South University, Changsha 410083, China
Luo Z: Guangxi Gaofeng Mine Co. Ltd., Hechi 547205, China
Zhou K: School of Resources and Safety Engineering, Central South University, Changsha 410083, China; Research Center for Mining Engineering and Technology in Cold Regions, Central South University, Changsha 410083, China
Li Z: School of Resources and Safety Engineering, Central South University, Changsha 410083, China
Xiong X: School of Resources and Safety Engineering, Central South University, Changsha 410083, China; Research Center for Mining Engineering and Technology in Cold Regions, Central South University, Changsha 410083, China
Lin Y: School of Resources and Safety Engineering, Central South University, Changsha 410083, China; Research Center for Mining Engineering and Technology in Cold Regions, Central South University, Changsha 410083, China
Luo Z: Guangxi Gaofeng Mine Co. Ltd., Hechi 547205, China
Journal Name
Energies
Volume
13
Issue
22
Article Number
E6102
Year
2020
Publication Date
2020-11-22
ISSN
1996-1073
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PII: en13226102, Publication Type: Journal Article
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LAPSE:2023.27736v1
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https://doi.org/10.3390/en13226102
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Apr 4, 2023
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