Browse > Article

Damage Contribution Rate Analysis by Accidental Tunnel Explosion at a Multi-layered Room and Pillar Mine  

Ko, Young-Hun (전남대학교 에너지자원공학화)
Yang, Hyung-Sik (전남대학교 에너지자원공학화)
Kim, Seung-Jun (전남대학교 에너지자원공학화)
Publication Information
Explosives and Blasting / v.35, no.3, 2017 , pp. 1-8 More about this Journal
Abstract
In this paper, parametric studies are conducted to evaluate the contribute effect of multi layered room and pillar mine structures by underground accidental explosions. Influence of PPV(Peak Particle Velocity) obtained from large explosion at a multi layered room and pillar mine was numerically simulated by using AUTODYN. Parameters for contribution rate Analysis was analyzed by the robust design method. Orthogonal array is $L_9(3^4)$, which was adopted in this study, the parameters were pillar height, pillar width, mine span and sill pillar of 3 levels. Results of analysis showed that bottom mine of vertical direction from explosion point are most affected by pillar height, followed by sill pillar thickness, mine span and pillar width. Parameters affecting adjacent mine of horizontal direction from explosion are in the order of pillar width, mine span, pillar height and sill pillar thickness.
Keywords
Multi layered Room and pillar mine; Accidental explosions; AUTODYN; Robust design; Peak particle velocity;
Citations & Related Records
연도 인용수 순위
  • Reference
1 김종관, 2014, 주방식 채광 석회석 광산의 응력상태와 지보에 관한 연구, 박사학위논문, 전남대학교 일반대학원.
2 한국광물자원공사, 2015, 광산재해예방매뉴얼, pp. 22.
3 ANSYS, 2010, Autodyn User's Subroutines Tutorial, pp. 50.
4 Chanakya Nariseti, 2013, Quantification of Damage in Selected Rocks due to Impact with Tungsten Carbide Bits, Masters Thesis, University of Toronto, United states of America.
5 Hendron, A.J., 1977. Engineering of rock blasting on civil projects. In: Hall, W.J. (Ed.), Structural and Geotechnical Mechanics, A Volume Honoring NM Newmark. Prentice Hall, New Jersey.
6 Kendorski, F. S., Jude, C.V., Duncan, W. M., 1973. Effect of blasting on shotcrete drift linings. Min. Eng. 25 (12), pp. 38-41.
7 Riedel, W., Thomas, K., Hiermaier, S., Schmolinske, E.,1999, Penetration of Reinfored Concrete by BETA-B-500 Numerical Analysis using a New Macroscopic Concrete Model for Hydrocodes, 9th International Symposium on the Interaction of the Effects of Munitions with Structures, Berlin-Strausberg, Germany, pp. 315-322.