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Optimization of tunnel support parameters with consideration of seismic wave radiation pattern in the fault-slip burst
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
School of Resource and Safety Engineering, Central South University, Changsha, Hunan.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
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2017 (English)In: Journal of Mining and Safety Engineering, ISSN 1673-3363, Vol. 34, no 4, 715-722 p.Article in journal (Refereed) Published
Abstract [en]

As the underground mining extends gradually towards depth, more and more seismic events induced by fault slip occur and cause great damages, which have become a severe potential threat to mining safety. In view of the plane strain problems, through the three dimensional discrete model established, comparison and analysis was carried out between the equivalent calculation of plane strain in 3D model and a 2D discrete model. The results have shown that the research model developed to simulate the propagation of seismic wave in 3D is feasible and applicable. The study of the effect of radiation pattern on seismic propagation revealed and tested the direction of P-and S-wave propagation, which presents high consistency to double couple model of the fault slip. On this basis, the comparison with the design scaling law formulas proposed by Kaiser and associates finds that the existing design scaling law does not totally satisfy the demand of practical engineering. Numerical calculation and analysis with the three dimensional discrete model can further optimize the support parameters, provide better service for system design of mining support, and ensure the safety and high efficiency in mining.

Place, publisher, year, edition, pages
2017. Vol. 34, no 4, 715-722 p.
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-65467DOI: 10.13545/j.cnki.jmse.2017.04.016Scopus ID: 2-s2.0-85027967448OAI: oai:DiVA.org:ltu-65467DiVA: diva2:1138135
Note

Tidskriftens kinesiska titel: Caikuang yu Anquan Gongcheng Xuebao

Available from: 2017-09-04 Created: 2017-09-04 Last updated: 2017-11-24Bibliographically approved

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CiteExportLink to record
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  • apa
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