Numerical Simulation Studies on Effects of Explosion Impact Load on Underground Mine Seal
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Abstract
As the first barrier to prevent accidents caused by explosions in underground coal mines, the integrity and stability of mine seals have great effects on mine workers’ lives and underground production safety. In this paper, the mechanical responding performance of typical mine seals under the impact load are studied by using numerical simulation method. By such simulation studies, the safety of different seals subjected to the explosion load is evaluated. Seals’ stability are also investigated under effects caused by various influence factors including thickness of mine seal, cutting depth into surrounding rocks, rock type, and the roof-to-floor convergence under given the explosion load. The research results can provide theoretical basis and reasonable improvements for mine seal’s construction practices for improving its anti-explosion performance.
Keywords
Mine seal Impact load Damage evaluationNotes
Funding Information
This work is financially supported by grants from Independent Research Projects of State Key Laboratory of Coal Resources and Safe Mining, CUMT (Grant No.SKLCRSM18X002), NaturalScience Foundation of Jiangsu Province of China (GrantNo.BK20181355), Fundamental Research Funds for the Central Universities (Grant No. 2018GF10) and Priority Academic Program Development of Jiangsu Higher Education Institutions.
Compliance with Ethical Standards
Conflict of Interest
The authors declare that there is no conflict of interest.
References
- 1.Song Y, Gao J, Zhao J (2009) Application of ANSYS software in nonlinear analysis of masonry structures. Journal of Anyang Institute of Technology:69–71Google Scholar
- 2.Song Y, Gao J, Zhao J (2008) Pressure simulation of combined masonry structure by ANSYS Software. Shanxi Architecture, 73-74.Google Scholar
- 3.Ferrara G, Willacy SK, Phylaktou HN, Andrews GE, Di Benedetto A, Salzano E, Russo G (2008) Venting of gas explosion through relief ducts: interaction between internal and external explosions. J Hazard Mater 155:358e68CrossRefGoogle Scholar
- 4.Kobiera A, Kindracki J, Zydak P, Wolanski P (2007) A new phenomenological model of gas explosion based on characteristics of flame surface. J Loss Prevent Proc 20:271e80CrossRefGoogle Scholar
- 5.VandenBerg AC et al (2006) Blast phenomena in urban tunnel systems. J Loss Prev Process Ind 19:598–603CrossRefGoogle Scholar
- 6.Ellis, B.R. and Crowhurst, D. (1991) The response of several LPS maisonettes to small gas explosions. IStructE/BRE seminar: structural design for hazardous loads: the role of physical tests, Construction Press, New York.Google Scholar
- 7.Kundu SK et al (2018) Confined explosion of methane-air mixtures under turbulence. Fuel 220:471–480CrossRefGoogle Scholar
- 8.Ngo TD (2007) Blast loading and blast effects on structures—an overview. Electron J Struct Eng 7:76–91Google Scholar
- 9.Chris T. Cloney, Robert C. Ripley, Michael J. Pegg, Paul R. Amyotte (2017) Evaluating regime diagrams for closed volume hybrid explosions, J Loss Prevent Proc Ind 49, Part BGoogle Scholar
- 10.Gangrade, V., Schatzel, S.J., Harteis, S.P. et al. (2019) Mining, metallurgy & exploration 36: 729. https://doi.org/10.1007/s42461-019-0065-7.CrossRefGoogle Scholar
- 11.McKee KE, Sevin E (1958) Design of masonry walls for blast loading. J Struct Div 84:1–18Google Scholar
- 12.Han L, Liu H (2015) Numerical simulation of destruction process of cement mortar and concrete under dynamic load. Sichuan Building Science Research:226–229Google Scholar
- 13.Mou J, Zhu X, Zhang Z, Gu M (2007) Research on deformation of stiffened plate structure under blast impact. J Naval Univ Eng, 12-16.Google Scholar
- 14.Gong M (2007) Study on dynamic characteristics and damage effect of multi-layer frame structure under explosion impact. Wuhan University of Technology, WuhanGoogle Scholar
- 15.Shi Y, Li X (2008) Dynamic response and failure mode of reinforced concrete columns subjected to blast loading. J Build Struct, 112–117.Google Scholar
- 16.Li, X., Shi, Y., Shi, X. (2009) Damage assessment method of reinforced concrete slab under blast loading. J Build Struct, 60–66.Google Scholar
- 17.LS-DYNA Version 960 (2002) Livermore Software Technology Corporation.Google Scholar
- 18.Hou Y (2008) Dynamic response analysis of reinforced concrete columns subjected to explosive impact loads. Changan University, ChanganGoogle Scholar
- 19.Davidson JS, Fisher JW, Dinan RJ, Hammons MI, Porter JR (2005) Failure mechanisms of polymer-reinforced concrete masonry seals subjected to blast. J Struct Eng 131:1194–1205CrossRefGoogle Scholar
- 20.Fatt MSH, Ouyang X, Dinan RJ (2004) Blast response of walls retrofitted with elastomer coatings. Struct Mater 15:129–138Google Scholar
- 21.Wang Y, Yu B (2016) Modeling and analysis of reinforced concrete based on ANSYS14.5. Shanxi Architecture, 1500-1509.Google Scholar
- 22.Kallu RR (2012) Coal mine seal design - numerical approach. Int J Earth Sci Eng 5:1500–1509Google Scholar
- 23.Yue J, Qian J, Wu K (2012) Plastic damage model for brick masonry modified yield surface. Q J Mech 33:146–152Google Scholar
- 24.Alshebani MM, Sinha SN (2000) Stress-strain characteristics of brick masonry under cyclic biaxial compression. J Struct Eng 126:1004–1007CrossRefGoogle Scholar
- 25.Karl Zipf R., Jr, Ph.D, et al. (2007) Explosion pressure design criteria for new seals in U.S. coal mines. Pittsburgh, PA: NIOSH.Google Scholar