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|Title:||Rockburst characteristics and mechanisms during steeply inclined thin veins mining : a case study in Zhazixi Antimony Mine, China||Authors:||Ma, Y
|Issue Date:||2018||Publisher:||Hindawi Publishing Corporation||Source:||Shock and vibration, 2018, v. 2018, 3786047 How to cite?||Journal:||Shock and vibration||Abstract:||With the increase of mining depth, rockbursts have become important safety problems in Zhazixi Antimony Mine, where overlying strata exceed 560 m. Due to the small spacing between the steeply inclined veins, mining activities have great influences on rockbursts of adjacent veins. In order to study rockburst characteristics and mechanisms in Zhazixi Antimony Mine, in situ measurement, field geological survey, uniaxial compression tests, and numerical simulation are conducted to analyze rockburst proneness and simulate the elastic strain energy accumulation characteristics. Consequently, rockburst proneness criteria are established on the basis of experimental results to propose the necessary lithologic conditions for rockburst aiming to Zhazixi Antimony Mine. Rockburst dangerous districts are defined based on high stress concentration and elastic strain energy distribution characteristics in mining process obtained by theory analysis and numerical simulation. Accordingly, it is suggested that thrown-Type rockbursts mainly occur in massive stibnite of ventilation shafts and stopes where the elastic strain energy exceeds 300 kJ·m-3, spalling-Type rockbursts generally appear in slate of roadways where the elastic strain energy exceeds 100 kJ·m-3, and ejection-Type rockbursts arise in different rock masses under a certain condition. Last but not the least, prediction results are basically consistent with statistics data of rockburst events after comparative analysis.||URI:||http://hdl.handle.net/10397/80609||ISSN:||1070-9622||EISSN:||1875-9203||DOI:||10.1155/2018/3786047||Rights:||Copyright © 2018 Yuanjun Ma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The following publication Yuanjun Ma, Changwu Liu, Fan Wu, and Xiaolong Li, “Rockburst Characteristics and Mechanisms during Steeply Inclined Thin Veins Mining: A Case Study in Zhazixi Antimony Mine, China,” Shock and Vibration, vol. 2018, Article ID 3786047, 16 pages, 2018 is available at https://doi.org/10.1155/2018/3786047
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Citations as of Oct 15, 2019
Citations as of Oct 15, 2019
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